A submersible dredge pump selection could be a challenging process which could be simplified with the understanding of the primary factors behind smooth pump operation. Apart from delivering a more efficient performance, the right submersible dredge pump requires lesser maintenance, reduced power and has a relatively longer life.
Apart from economic considerations, the primary selection considerations for dredge pump operations are not the dredging capacity of gravel, clay, or silt the dredge pump generates and minimum amount of wear and tear in the pump due to the flow operation.
There are key design parameters to keep in mind: the critical flow rate and the pump design material. The BIG Dredging cutter drive has less resistance of the suction tube. The unique cutter drive allows you the ultimate flexibility during dredging.
HDD Submersible Dredge Pumps are the most efficient multifunctional dredging pumps, dedicated to extracting slurry and sand. The large range of different dredge tools brought this Submersible Dredge Pump to a higher level. The Submersible Dredge Pump uses a HDD Dredge Pump made of wear-resistance cast parts.
Each HDD Submersible Dredge Pump has an adjustable impeller offset to the front plate, double curved impeller blades, compensation blades outside the impeller, helix delivery pipe output, wider impeller diameter and a large spherical passage for the highest operation efficiency.
All dredgers can be equipped with computer control systems in keeping the latest technological developments for positioning, handling and extracting control.
An optional satellite-supported dGPS navigation system can additionally be installed for the purpose of exact and reproducible positioning.
The HDD Submersible Dredge Pump can be used in different environments with different purposes. From mineral mining to land reclamation and from cleaning hopper barges to dredging the reservoirs from hydroelectric dams. Due the large range of different dredge tools the HDD Dredge Pump can be most efficient for its job.
The HDD dredge tool can easily be replaced by another tool going from job to job. BIG Dredging can provide you dredge advice, training, spare parts, dredge systems and a lot more for the highest operation efficiency.


This series pressure reducing valve is a new type regulating valve which adopts
piston to replace the diaphragm. The performance is reliable and it's can be used for a long time. The down pressure can be adjusted according to the requirement, and it can be set at a fixed pressure in the application, which won't be changed as the fluctuation of the up pressure and the flowing rate.
Field of Application.
Pressure Rating: 1.0- 6.4Mpa
Nominal Diameter: DN20-400
Body Material: Steel, CF8
Standard flanges: DIN, ANSI, JIS.
Contact Name: Ellison
Company Name: Yong Jia Goole Valve Co., Ltd
Street Address: Heyi Industrial
Zone, Oubei Town Wenzhou, Zhejiang
Other Contact Info:
Member name: goole
Member Since: 14 September 2017
Total Leads: 46 goole Import Export Business Leads
Business focus: Control Valve, Pressure Reducing Valve, Safety Relief Valve, Steam Trap, Strainer, Api Valve, Din Valve
Verify: Safe Import Export Tips
Product Category: Pressure reducing valve


Hydroelectric contracts worth US$ 353 million awarded in Malaysia
By Helen Wright20 December 2010
Malaysian power utility Tenaga Nasional Berhad (TNB) has awarded three contracts worth MYR 1.1 billion (US$ 353 million) for the construction of dams, hydro turbines and generators at the Hulu Terengganu Hydroelectric project.
The renewable energy project is situated in the north-eastern peninsular of Malaysia in the Terengganu region, upstream of Kenyir Lake.
It involves the construction of two dams and the installation of two hydro turbines and generators in an underground power station with a total installed capacity of 250 mW.
Local civil and structural engineering company Loh & Loh Construction won a US$ 263.3 million contract in a joint venture agreement with Sinohydro Corporation to carry out the main civil works.
This includes the construction of two dams, a water transfer tunnel and an underground power house.
Meanwhile, a US$ 76.8 million contract was awarded to Alstom Projects India and Alstom Hydro Malaysia for the design, manufacture, erection, testing and commissioning of two 125 mW generating plants.
The third US$ 13.1 million agreement was with SNC-Lavalin, SNC-Lavalin Power (Malaysia), KTA Tenaga and G & P Professionals.
TNB said this consortium would provide detailed engineering design for the main civil works together with an engineering design review for the electrical and mechanical works, project management and site supervision.
The facility is expected to be operational by October 2015.


Ideal 170992 Pressure Relief Valve Kit - 498341
Product DetailsThe pressure relief valve helps to control pressure build up within a central heating system. It is set to open in the event of a pressure build up releasing excess water to prevent catastrophic boiler malfunction .
- Fits a number of Ideal Boilers
Brand Name Ideal Boilers EAN 5022141709920


- 1 min read
HCC wins hydro power contract worth Rs 810 crore in Jammu and Kashmir
The contract is for construction of 93 MW (3x31 MW) New Ganderbal hydro power project on Sind River in central Kashmir on EPC basis. The work is to be completed in 48 months.
"Hindustan Construction Company has been awarded a contract worth Rs 810.37 crore contract by Jammu and Kashmir State Power Development Corporation Ltd (JKSPDCL)," HCC said in a BSE filing.Shares of HCC were trading 1.73 per cent higher at Rs 35.25 on the BSE.


Maldives Transport and Contracting Company (MTCC) has signed with Ministry of National Planning, Housing and Infrastructure – Maldives towards implementing the design and build of shore protection structures at Adh. Kunburudhoo.
The company’s COO Shahid Hussain Moosa signed on behalf of MTCC, while Permanent Secretary Ms. Zeeniya Hameed signed on behalf of the MNPHI.
Project works involve, dredging and excavation operations, construction of a 170m revetment; a 57m quay wall; construction of a 9m x 9m ramp, installation of 250sqm harbor pavement and installation of harbor lights.
According to MTCC, the value of the project is MVR 9.61 million and the project is to be completed within 150 days.


Oman’s Special Economic Zone Authority in Duqm (Sezad) has awarded contracts worth RO84.7 million ($219 million) involving four key infrastructure projects within the free zone.
An agreement was signed with Premier International Projects Company for the construction of two protection dams, one over Wadi Jarf with a storage capacity of 32.8 million cu m, and the other on Wadi Sai with a storage capacity of 17 million cu m. The project will be completed by the end of 2019 at a cost of RO27 million ($70 million).
Another agreement worth RO49.7 million ($129 million) for the construction of two drainage channels was signed with a joint venture of Serka and Rajab and Aidi Earthmoving Company.
Sezad also signed agreements for the construction of the Interface Roadway Project at Duqm (Section 4) at a cost of RO7.2 million ($18.6 million), which was awarded to Al Hajri Trading Company.
Sezad also awarded a contract to Al Sarooj Construction for a 790-m-long service road in Duqm along with development of parking spaces for 63 buses, pedestrian paths and concrete channel for rainwater drainage.


€ 1.3 million from the NSRF for flood protection projects in Komotini
The northern part of the city is shielded with the construction of two canals with a total length of 502 meters
The allocation of 1.3 million euros from the NSRF for the construction of flood protection projects by the Municipality of Komotini in the northern part of the city was approved by the Regional Governor of Eastern Macedonia and Thrace Mr. Christos Metios.
The interventions of the Municipality financed by the Region will be made in the area of the firing range and in the area of the Camp "Lgou (PZ) Parashou".
A 1.5 km long concrete drainage ditch will be constructed in the area of the firing range, while two canals with a total length of 502 meters will be constructed in the area of the Camp.
With the construction of the project, flood phenomena will be addressed that often occur in the two areas during bad weather and which create problems throughout the northern part of the city.On this occasion, Mr. Metios visited the area of the shooting range with the Mayor of Komotini Mr. Giannis Garanis and the Deputy Regional Governor of Rodopi Mr. Nikos Tsalikidis. He was informed about the interventions that will be carried out by the Deputy Mayor for Planning, of the Municipality of Komotini Mr. Dimitris Karastavrou.


Michigan Center Lake, southeast Michigan
Michigan Center Lake is on the Grand River in Jackson County, Michigan and is used for recreation purposes. Construction was completed in 1911. It has a normal surface area of 3.4 square miles. It is owned by Leoni Township.
Michigan Center Lake Dam is a gravity dam. Its height is 9.5 feet with a length of 90 feet. Maximum discharge is 420 cubic feet per second. Its capacity is 8000 acre feet. Normal storage is 5280 acre feet. It drains an area of 62.9 square miles.
Lakes, Dams, and Recreational Facilities Near Michigan Center LakeCenter Lake Center Lake Gilletts Lake Leoni Dam Gilletts Lake Gilletts Lake Holton Dam Wolf Lake Wolf Lake Goose Lake Stony Lake Stony Lake Goose Lake Grass Lake Baldwin Flooding Dam Grass Lake Clark Lake Clark Lake Jackson Prison Dam Lake Columbia Portage Creek Trout Pond Lake Columbia Portage Lake Portage Lake Portage Lake Portage Lake Little Portage Lake Little Portage Lake Vineyard Lake Vineyard Lake Sharon Mills Dam Horton Dam Wamplers Lake Mud Lake Wamplers Lake Winnewanna Dam Springville Mill Dam Minard Mill Dam Lombard Lake Sand Lake
Bookmark this lake location.
Find other southeast Michigan area lakes and vacation ideas or return to the home page.
Other AreasClick the map to see lakes in other parts of the country.


Vaillant 190728 Pressure Relief Valve - 489946
Product DetailsThe pressure relief valve helps to manage pressure build up within a central heating system. It is set to open as the pressure increases to ensure the pressure doesn't reach a dangerous level .
- Comes with Washer
Type Pressure Relief Valve Made To Order N Manufacturer Model No 190728 Brand Name Vaillant EAN 4024074349021


China - Fujian Meizhou Bay Navigation Improvement Project
IBRD Loan: US$50 million
Terms: Maturity = 19 years; Grace = 10 years
Project ID: P124848
Project Description: The objective of the project is to improve the capacity of the main navigation channel in Meizhou Bay and enhance the management capacity of Meizhou Bay Harbor Administration Bureau.


Clean Current is a partner in a research project being conducted by Acadia University, Fundy Tidal Inc., Dalhousie University, and others. The goal of the project is to reduce the cost of in-stream tidal energy generation through comprehensive hydrodynamic site assessment. A Clean Current 3.5m tidal turbine is scheduled to be installed in the Bay of Fundy in the fall of 2014 to validate the mathematical models that will be developed as part of the project. At the conclusion of the project, the best locations for small-scale tidal power projects in Digby County are expected to be identified and will be developed under the province’s COMFIT (Community Feed-In Tariff). Acadia’s press release on the project can be found here.


Stormwater Collection Systems Design Handbook by Larry Mays pdf free download.
* A comprehensive overview of stormwater and wastewater collection methods from around the world, written by leading experts in the field
* Includes detailed analysis of system designs, operation, maintenance and rehabilitation
* The most complete reference available on the subject
From the Back Cover
*Design procedures and detailed examples are presented for stormwater inlets, sewers, both in-line and off-line detention systems, infiltration systems, subsurface detention systems, pump facilities, and many more system components.
*New concepts for the design and implementation of distributed stormwater control and reuse and stormwater treatment using wetland systems are presented
*Specialized procedures for the removal of urban litter abd sediment movement in sewers are featured
*Design procedures and detailed examples are presented for drainage channels, flow transitions, and energy dissipates
*Many computer models are introduced that can be used in the design of various components of stormwater collection systems
*Water quality aspects of stormwater collections systems design are discussed
*Risk/reliability models for design and analysis are presented
Size: 15.82 MB


Kim J.H.,Hanyang University |
Kim J.H.,Energy Systems Technology Center |
Oh K.T.,Hanyang University |
Pyun K.B.,Hanyang University |
And 3 more authors.
IOP Conference Series: Earth and Environmental Science | Year: 2012
In this study, optimization of the impeller and design of volute were carried out in order to improve the performance of a centrifugal pump. Design parameters from vane plane development for impeller design were selected and effect of the design parameters on the performance of the pump was analyzed using CFD and Response Surface Method to optimized impeller. This study also proposed the optimization geometry of pump impeller for performance improvement through the results from numerical analysis that was obtained optimum design pump; efficiency 98.2% and head 64.5m. In addition, the pump design method was suggested by designing volute which was suitable for the optimized impeller through volute design where Stepanoff theory was applied and numerical analysis. © 2013 Published under licence by IOP Publishing Ltd.


Available in 2 in. and 16 in. through 35 in. sizes, the low-cost HS-series pumps provide high speed, low ultimate pressure, high throughput, high tolerable forepressure, and low backstreaming.
The HS-Series diffusion pumps come with full thermal protection and optional quick-cool coils. The 16 in. through 35 in. pumps come with sight glass/fill and drain assemblies, and are available with ASA or ISO flanges.
- High pumping performance in a compact package
- Fractionating jet purifies pumping fluid
- High tolerable forepressure
- Stainless steel jet and pump body
- Standard quick-cool coil
- Finned boiler increases surface area, prolonging pumping fluid life
- Foreline baffle prevents pumping fluid loss into backing system


The AS and AG range feature a high efficiency dry motor with a double outer casing water cooling jacket which flows around grey iron stator housing, providing transmitting motor heat during operation. This allows the motor to operate with improved efficiency.
The pumps have a high chrome alloy steel impeller and wear plate/ring hardening to HRC 55 to 60 which provide resistance, prolong operation at rated performance and can reduce maintenance costs. A selection of open and enclosed channel impellers suit a range of operations.
HCP's submersible pumps also have a shaft seal system featuring dual mechanical seals with a single spring coiled design which can improve flexibility and accommodate break away shock loading and prevent leakage issue. An additional oil seal helps improve durability.
The AS and AG series are suitable for tunnel dewatering, groundworks and fluids containing solid sediment.


Maldives Transport and Contracting Company (MTCC) has announced that the work on design and build of Hdh. Hanimaadhoo Harbor Development Project is well underway, with overall 55% project progress.
According to MTCC, quay wall concrete works are ongoing. The company has commenced sand-filled breakwater construction works.
The Hdh. Hanimaadhoo Harbour project consists of; new harbor basin dredging of 53,522.50cbm; harbor entrance channel dredging of 31,575.50cbm; construction of a 355m breakwater; a 50m revetment; a 270m quay wall and installation of 2,583sqm of paved area.
MTCC revealed that the value of the project is MVR 64.6 million.


Singapore: Reclamation Work at Tuas View Continues
The working period on western part of Singapore has been extended and the working details are revised.
The reclamation works will involve dredging by cutter suction dredger ( CSD ), trailer-suction-hopper-dredger ( TSHD ) and hopper barges.
Shore protection works will be carried out by crane barges and the dredging of sand-key trench by grab dredger. Soil investigation works will be carried out by means of Vibrocore method.
Construction of the cofferdam will be carried out by the crane barges within the working area.
[mappress] Source: mpa.gov, July 31, 2010


- Flood Warning issued May 22 at 5:29AM CDT until May 24 at 4:36AM CDT by NWS
- Effective: 5:29 a.m. on Friday, May 22, 2015
- Expires: 4:36 a.m. on Sunday, May 24, 2015
...The Flood Warning continues for the following rivers in
Grand River near Brunswick affecting Carroll and Chariton Counties.
Missouri River at Napoleon affecting Jackson...Lafayette and Ray
Missouri River at Waverly affecting Carroll...Lafayette and Saline
Missouri River At Miami affecting Carroll...Chariton and Saline
Missouri River at Boonville affecting Cooper and Howard Counties.
Platte River At Sharps Station affecting Platte County.
Platte River near Platte City affecting Platte County.
The Flood Warning continues for
The Missouri River at Napoleon.
* until late Saturday night.
* At 5:00 AM Friday the stage was 17.6 feet.
* Flood stage is 17.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 17.8 feet by this
morning. The river will fall below flood stage Saturday morning.
* At 17.0 feet...Low-lying areas unprotected by levees begin to
Location FS Stage Day/Time Forecast
Napoleon 17 17.6 Fri 05 AM 17.8 this morning
- See more at NOAA


In April '20 the Burgvlietkade pumping station was delivered.
PS Burgvlietkade in Gouda has been renovated and fitted with a new fish-safe open screw pump of the Vision MC type.
The pumping station was built in 1934 and was then equipped with an open screw pump in a wet pump cellar with a capacity of 80 m3/minute.
The now very old pump was in very bad condition and no longer reached its design capacity and therefore needed to be replaced.
The newly delivered Vision MC open screw pump has a maximum capacity of 90 m3/minute which guarantees water safety again.
The pump also ensures that fish and eels can pass the pumping station safely.
We look back on a good cooperation with contractor Gebr. Schouls and Kadiks automation B.V.


The 700MW Zungeru hydroelectric power plant reached 47% completion stage, CNEEC-Sinohydro Consortium, the Chinese firm handling the project has said.
The Deputy Project Manager, Mr Xiao Nie, who conducted newsmen on tour to the $1.2bn project site in Zungeru, Niger State, said project, made up of four units of 175mw each, was expected to be completed in 2020. It was inaugurated in 2013.
The first phase would be released by December 2019 while the remaining units would be released after every three months, he added.
He said the project consists of a dam for storage reservoir with maximum operation water level of 230m, and total storage capacity of 11.4×109m3.
He said the power project has annual power generation of 2,640GWh, and is also expected to generate and supply electricity to the national grid.
Nie noted that the Zungeru plant, after completion, would improve electricity supply and boost the industrial development in the country.
“It will also be helpful for the flood control, the development of fisheries and agriculture. The navigable period and the length of the fairway will also be extended,” he said.
He said the consortium had employed more than 3000 local staff members who were trained in different skills.


Corrugated Pipes are used for cable protection as well as sewerage applications. These pipes are made with a polyethylene material to utilized for a longer time. These are scratch proof and damage damage proof in nature. Corrugated Pipes are able to control the pressure of water level in agriculture land. These are easy to mount as to collect the substance drainage and managed smoothly in the depth to ground water level without any problem.
Plot No. 68, Bhikamchand Jain Nagar, Jalgaon, Maharashtra, 425001, India


Concern Expressed Over Reduced Flow From Gavins Point
Posted: 16 November, 2012
ST. LOUIS (AP) - Illinois Gov. Pat Quinn and Sen. Roy Blunt of Missouri are joining the chorus expressing concern over the Army Corps of Engineers plan to reduce flow from Gavins Point Dam, potentially affecting shipping on the Mississippi River.
The corps has said that around Nov. 23 it will reduce the flow at the dam in Yankton. The reduction will mean less water from the Missouri flows into the Mississippi River. With the Mississippi already low due to the drought, there is fear barge traffic may come to a halt. Missouri Gov. Jay Nixon last week encouraged the corps to reconsider.


The Flood Warning continues for
the Illinois River near Havana.
* Until Thursday afternoon.
* At 9:45 AM CDT Sunday the stage was 14.1 feet.
* Flood stage is 14.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity…The maximum river stage in the 24 hours ending
at 9:45 AM CDT Sunday was 14.2 feet.
* Forecast…The river is expected to rise to a crest of 14.2 feet
tomorrow evening. It will then fall below flood stage Thursday
* Impact…At 14.0 feet, Minor flooding begins to agricultural areas
not protected by levees.
The post Flood Warning issued May 16 at 10:49AM CDT until May 20 at 1:00PM CDT by NWS Lincoln IL appeared first on WEEK.


It’s still a long way to go before the roadworks at the Kauswagan approach of the Puntod-Kauswagan Bridge will be completed. The project is part of the Flood Risk Management Project under the Japan International Cooperation Agency (JICA) Loan Agreement.
As observed, the project aims to raise the level of the bridge approach so it will not be inundated by rising flood waters of Cagayan de Oro River. As shown below, the project is still halfway up on the eastbound lane.
The project costs P371 million and is contracted to AM Oreta & Co., Inc. and IPM Construction & Devt. Corp. as a joint venture. As indicated, the project will be completed in December 2020.


-10°C to +150°C
0,5 - 16 bar
water, salt water and aggressive solutions
Horizontally and vertically
Ring check valve mounting between flanges, cupro-aluminum housing, FKM seal and cupro-aluminum disc to prevent liquids or gases from flowing back. The valve thus offers one-way passage. The disc opens as soon as the minimum opening pressure is reached. As soon as the pressure decreases, the non-return valve closes by means of the disc. The check valve is suitable for water, salt water and aggressive solutions.
Maximum continuous flow velocity: 5 m/s.


Swan on River Hiz, Hitchin
With the introduction of PPS25, and the increasing frequency of river flooding, it is essential that developments in close proximity of flood plains and major rivers are adequately protected. Wormald Burrows Partnership Ltd provide full 2D and 3D river models and analysis using our in-house design software in conjunction with the HECRAS river modelling software.
Our engineers work closely with a range of approved surveyors to provide fully detailed topographical surveys of river profiles along with flood defences and features that may effect flood routing.
|Previous Page: Flood Risk Assessment||Next Page: Pumping Station Design|


Lake Carmel, New York
Lake Carmel Dam is on the Middle Branch Croton River in Putnam County, New York and is used for recreation purposes. It has been been there since 1930. At normal levels it has a surface area of 240 acres. It is owned by Town Of Kent.
Lake Carmel Dam is of earthen construction. Its height is 25 feet with a length of 475 feet. Maximum discharge is 2830 cubic feet per second. Its capacity is 2790 acre feet. Normal storage is 1620 acre feet. It drains an area of 13 square miles.
Lakes, Dams, and Recreational Facilities Near Lake CarmelStillwater Pond Lake Gleneida Wonder Lake West Branch Reservoir Carmel Dam Carmel Auxiliary Dike Lake Gilead Boyds Corner Dam Bog Brook Dam #2 Croton Falls Reservoir Middle Branch Dam Sodom Dam Bog Brook Dam #1 White Pond Lake Tibet Lake Casse Diverting Reservoir East Branch Reservoir Putnam Lake Boggs Pond Croton Falls Dam Kirk Lake Teakettle Spout Lake Roaring Brook Dam Lower(south)wiccopee Dam Pawling Reservoir Titicus Reservoir Upper Kohanza Lake Margerie Lake Lower Kohanza Lake East Lake Padanaram Reservoir Canopus Lake Upper(north) Wiccopee Dam West Lake Titicus Dam Pelton Pond John Allen Pond Nuclear Lake Greenhaven Correctional Facility Dam
Bookmark this lake location.
Find other southwest Connecticut area lakes and vacation ideas or return to the home page.
Other AreasClick the map to see lakes in other parts of the country.


Zahesi is the first powerful hydro power plant in Georgia. It is characterized by a low-head, seasonal regulation station.
Zahesi is built on the river Mtkvari, near Mtskheta, near the outfall of River Mtkvari and Aragvi. HPP uses drop of the river Mtkvari drop in 11 km section. According to the project, the total reservoir created by the dam is 12.0-mln.m3 total capacity, live storage - 3.0-mln.m3, which is provided for daily regulation.
Zahesi was put into operation in 1927-39years. HPP installed capacity is 36.8 MW, design generation is 203.0-mln kW.h


"Fort Loudon Dam"
|Fort Loudon was
the last dam built on the Tennessee River. Construction began in
July 1940 and was completed in June 1944. The dam was constructed in
three phases. Phase One was the lock and earthen dam on the south
side of the river. The lock was constructed on Belle Island.
Phase Two was the construction of the spillway. Phase Three was the
construction of the Powerhouse. During the construction of the lock
and earthen dam, all of the water was channeled through the main river
channel. During the construction of the spillways, the water was
channeled through the lock and remaining river channel. During the
construction of the powerhouse, the water was diverted through the
spillways and the lock.
The highway bridge over the dam was not added until 1963. We hope in the future to put together a photographic history of the bridge.
| Page 1 -
Beginning | Page
2 - Lock | Page
3 - Spillways |
| Page 4 - Powerhouse | Page 5 - Behind the Dam | Page 6 - Buildings |
| Page 7 - Miscellaneous |
More Statistical Information about the Dam
A special thank you to:
|Return to lenoircity.com|
|Return to loudoncity.com|


Ultrasonic Flow Meter TUF-2000B Clamp on Flow Meter
Ultrasonic Flow Meter TUF-2000B Clamp on Flow Meter can be virtually applied to a wide range of long-term online measurements. Convertor protection class IP67, transducer protection class IP68. A variety of liquid applications can be accommodated: ultra-pure liquids, portable water, chemicals, raw sewage, reclaimed water, cooling water, river water, and plant effluent. etc.


Physical Model Studies
Over 20,000 square feet of covered laboratory space is available in the main Hydraulics Lab for model studies. Outdoor flumes are available and can be used for near-prototype-size studies. An additional facility can be used to construct large scale, custom flume configurations. Flow rates range from 0 to 200 cfs. Flume widths range from 8 inches to 20 feet. Custom flumes have been built as large as 50 feet wide and 250 feet long in the past. Previous physical model studies have included dams, spillways, sediment transport studies, recreational whitewater features, river diversions, and many more.
Common Physical Models
- Reaches of river
- Erosion and sedimentation models
- All types of spillways
- Diversion structures
- Intake structures
- Bridge waterway hydraulics and scour
- Fish passage structures
- Energy dissipation structures
- Recreational whitewater features
Previous Physical Model Studies
The projects below are a small sample of the many types of physical model studies undertaken at the laboratory.
Location – Marseilles Canal at Marseilles Lock and Dam on the Illinois River
Scale – 1:70
This study used a hydraulic model used to investigate the magnitude of water crosscurrents in the upstream, navigation approach to the Marseilles Canal at Marseilles Lock and Dam on the Illinois River. The navigation channel approach near Marseilles Canal is aligned close to the south side of the dam; the canal leads to the navigation lock at Marseilles, Illinois.
Gross Dam Spillway
Location – Boulder County, Colorado
Scale – 1:24
CSU has partnered with Denver water and their design engineers to create a scale hydraulic model of Gross Reservoir’s new proposed spillway. Reservoir storage will be increased 77,000 acre-feet by raising Gross Dam 131 feet, providing additional water supply and stability to Denver’s fast growing population. The existing smooth spillway will be replaced with a new steeper, stepped spillway in addition to a new stilling basin. CSU has worked with the design engineers to verify and measure air concentration and pressures along the spillway as well as refine the stilling basin design for best performance. CSU was honored to be involved in such a unique project that is close to home.
For more information on the project see Denver Water’s Gross Reservoir Expansion project website here.
River Run Whitewater Park
Location – South Platte River, Denver, Colorado
Scale – 1:6
CSU partnered with McLaughlin Whitewater Design Group to test and refine recreational whitewater features to be used by kayakers and river surfers. A total of six drop structures were tested and are now built that create recreational waves that can be surfed or kayaked. McLaughlin Whitewater has pioneered and patented the use of mechanical WaveShapers™ that can tailor these waves to the rider and also the river flow rate. McLaughlin and CSU spent considerable time fine tuning head water and tail water elevations, and inlet conditions to change wave size, shape, quality, etc.
For more information see McLaughlin Whitewater’s website here.
Grade Building Structures
Location – North Fork of the Toutle River, Washington
Scale – 1:80
This study involved a hydraulic model designed and used to provide insights into the performance of a barrier walls forming a grade-control structure to retain bed sediment along a reach of the North Fork of the Toutle River, which drains a watershed on the flank of Mt. St. Helens, Washington. The barrier-wall concept is a potential part of an overall approach the U.S. Army Corps of Engineers implemented for managing sediment in the watershed.


Views: 5668 Author: Site Editor Publish Time: 2020-03-10 Origin: Site
A check valve is a valve whose opening and closing member is a circular disc and acts on its own weight and medium pressure to block the backflow of the medium. Check valve is often used as the bottom valve of the pumping device to prevent the backflow of water. The combination of check valve and shut-off valve can play a role of safety isolation. Its disadvantages are high resistance and poor sealing when closed.
(1) Swing check valve
The flap of the swing check valve is disc-shaped and rotates around the rotation axis of the valve seat channel. Because the channel in the valve is streamlined, the flow resistance is smaller than that of the lifting check valve, which is suitable for large-caliber occasions with low flow rates and infrequent changes in flow. However, it is not suitable for pulsating flow, and its sealing performance is not as good as that of lifting type. Swing check valve is divided into three types: single, double and half. These three types are mainly divided according to the valve diameter, in order to prevent the hydraulic shock when the medium stops flowing or flowing backward.
(2) Lift check valve
The lift check valve is a check valve whose valve disc slides along the vertical centerline of the valve body. The lifting check valve can only be installed on horizontal pipelines. On the high-pressure small-diameter check valve, the ball can be a ball. The shape of the valve body of the lift check valve is the same as that of the shut-off valve (common with the shut-off valve), so its fluid resistance coefficient is large. Its structure is similar to a globe valve, with the same body and disc as the globe valve. The upper part of the valve disc and the lower part of the valve cover are processed with a guide sleeve, and the valve flap guide can be freely raised and lowered in the valve guide. When the medium flows downstream, the valve flap is opened by the thrust of the medium; when the medium stops flowing, the valve flap falls on the valve seat by hanging down, which prevents the medium from flowing backward. The direction of the medium inlet and outlet channels of the straight-through lift check valve is perpendicular to the direction of the valve seat channel. The direction of the medium inlet and outlet channels of the vertical lift check valve is the same as that of the valve seat channel, and its flow resistance is smaller than that of the straight type.
(3) Disc check valve
It is a non-return valve whose valve disc rotates around a pin in a valve seat. The disc check valve has a simple structure and can only be installed on horizontal pipes. Its tightness is poor.
(4) Pipeline check valve
It is a valve that slides along the centerline of the valve body. Pipeline check valve is a new type of valve. Its small size, light weight, and good processing technology are one of the development directions of check valves. However, the coefficient of fluid resistance of the pipeline check valve is slightly larger than that of the swing check valve.
(5) Compression check valve
This valve is used as a boiler water and steam shutoff valve, and it has the integrated function of a lift check valve and a stop valve or an angle valve.
In addition, there are some non-return valves not suitable for pump outlet installation, such as foot valve, spring type, Y type, etc.
(1) Do not allow the check valve to bear the weight in the piping system. Large check valves should be independently supported so that they are not affected by the pressure generated by the piping system.
(2) When installing, pay attention to the direction of the medium flow should be consistent with the direction of the arrow marked on the valve body.
(3) The lifting vertical flap check valve shall be installed on a vertical pipeline.
(4) The lifting horizontal flap check valve shall be installed on a horizontal pipeline.
With the acceleration of the restructuring of the valve industry, the future industry will be competition between valve product quality and safety and product brands. The products are developing towards high technology, high parameters, strong corrosion resistance and high life. Only through continuous technological innovation, development of new products, and technological transformation can we gradually improve the technical level of our products.


The Flood Warning continues for
the Illinois River near Havana.
* Until Monday evening.
* At 7:45 PM CDT Thursday the stage was 14.7 feet.
* Flood stage is 14.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity…The maximum river stage in the 24 hours ending
at 7:45 PM CDT Thursday was 15.0 feet.
* Forecast…The river is expected to fall below flood stage
Saturday morning and continue falling to 12.1 feet Thursday
The post Flood Warning issued May 27 at 8:36PM CDT until May 31 at 7:00PM CDT by NWS Lincoln IL appeared first on WEEK.


Renewable energy Kaplan turbine
Product ID: Kaplan turbineSend Inquiry
Kaplan turbine is suitable for low head power plant of 20 to 30 meter head. By the structure, it can be categorized into fix bladed Kaplan and double regulated Kaplan. Fix blade Kaplan apply to middle and small capacity power plant with small water head and discharge variation. Double regulated Kaplan is suitable for big and medium capacity power plant with bigger water head and load variation.
Hydropower generator,Hydropower turbine,small wind generator and so on


hydraulic press / forming / double-action / 4-column
Mecamaq’s model PDV250C is a hydraulic press which works with a power of 250 tm. Its lower table measures 1,200x1,100 mm, while the top table runs at a length of 300 mm. A mechanism of the model includes a table for four guides with a diameter of 70 mm. An opening between the tables with a maximum size of 600 mm is also designed into the model.
The hydraulic group has two speeds, while engine has a power of 15 hp. The model is built with a hydraulic cushion with 65 tm of power.


5 Quart Turbo II Air Hydraulic Pump
- 5 quart oil capacity (Shipped with premium hydraulic oil)
- Rugged poly glass reservoir with sight gauge
- 10,000 psi hydraulic pressure
- Low profile and compact design easily fits truck storage bins
- FASTEST PUMP AVAILABLE
Weight: 23 lbs. | 11 kg
*Must Register Product to Qualify for 3-Year Warranty Extension.


Dam Stock Photos
116,307 dam stock photos are available royalty-free.
A Dam. A water dam in tasmania, calm and quiet sitting deep inland Dam calm day. Calm, cloudless day at the hoover dam with a view of two towers Kariba dam. Beautiful view of the kariba dam zimbabwe Hoover Dam. Once known as Boulder Dam, is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Beavers dam. Near Krempna in the Magurski National Park DAM. A Big Dam mukkombu in Tamil nadu, south india Beaver Chewing Dam. Beaver swimming in pond Monroe Georgia dam Dam. In The New Zealand Tinker Creek Dam - 3. Tinker Creek Dam on Tinker Creek located in Roanoke, Virginia, USA Tinker Creek Dam - 2. Tinker Creek Dam on Tinker Creek located in Roanoke, Virginia, USA Dam. In The New Zealand Dam. Photo of a dam Ikawa Dam. Landscape of Ikawa Dam (Ikawa Hydro Power Plant) in Shizuoka, Japan Port Mayaca Lock and Dam. The Port Mayaca Lock is a navigable lock and dam on the Okeechobee Waterway, in Martin County, Florida Fontana Dam. Fontana Lake is a reservoir nestled in between the Great Smoky Mountains and the Blue Ridge Mountains of Western North Carolina. Fontana Dam is a Twilight at the Hoover Dam, Arizona-Nevada Border. Twilight with a purple haze at the historic Hoover Dam on the Arizona-Nevada Border Hartbeespoort Dam. Close to Pretoria, South Africa Dam in winter. Vidraru dam in winter in Romania Dam. Close view of Hirakud dam Vidraru Lake and Dam. Panorama of mountain lake with overcast sky of Vidraru Lake and Dam. hills glowing in sunlight. Vidraru Dam, Romania. Carpathian Mountains Large dam, view from above, from the quadrocopter. Cars ride along the dam The Dam at Kapps Mill. The dam beside Kapps Mill on the Mitchell River in Dobson, North Carolina. Surry County Dam. River dam and waterfall. Gates open Dam. A dam photografed in the Abruzzo mountains Water dam. On frozen lake in winter season Hoover Dam. Water intake towers at Hoover Dam, Nevada / Arizona border Lake and Dam. Aerial view of lake and dam with mountains and horizon in background, flood plain in foreground Hartebeespoort Dam. View over the Hartebeespoort dam South Africa Karahnjukar dam construction of the hydroelectric power plant Fljotsdalur power station, Iceland. Beautiful landscape in soft morning light with blue sky Hoover Dam. Near Las Vegas Incredible cirrus clouds and huge flat stones in Old Pinawa Dam Park. Indian summer in Manitoba, Canada. The concept of. Ecological and recreational tourism Reservoir dam. Meishan reservoir dam anhui province china Oral dam. On isolate white background Dam with road. View of the navigable part of the protective dam on the Gulf of Finland. Saint-Petersburg, Russia Bonneville Dam. Electric power lines in forefront of the Bonneville Dam on the Columbia River. Green territorial hillside in background Beavers dam of twigs. The beaver engineered and built a levee or dam to hold back the flowing white water in the western stream to create a pond Emosson dam. The Emosson hydroelectric Dam in the little Swiss village of Chatelard Hydroelectric dam. Dam wall and lake at Kariba in zambia Rivers on Chinese Inner Mongolia dam prairie. The rivers in the autumn on Chinese Inner Mongolia dam prairie Hoover Dam. Once known as Boulder Dam, is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the US states of Arizona A winter view of Otter Lake Dam, Blue Ridge Parkway, Virginia, USA. A winter view of Otter Lake Dam located at mile 60.3 on the Blue Ridge Parkway, Virginia, USA Hydroelectric Dam. This picture of the hydroelectric dam with all gates wide open and the snowy mountains in the background was taken near Polson, MT Hoover Dam before sunset. On a sunny day Royal Palace at the Dam Square in Amsterdam, Netherlands. No people in Dam Square in Amsterdam, Netherlands. White Caps on the Dam. At O`Shaighnessy in Dublin, Ohio Bonneville Dam. A sunny day at the Bonneville Dam Vidraru dam and lake. High panoramic view of Vidraru dam and lake in a clear day and calm weather Lake Vyrnwy Magnificent Dam in Powys, Wales. Showing off its impressive overflow with the 1880s architecture, arches, shadows and leading lines Wide angle photo of the Katse dam wall in Lesotho. Southern Africa Beaver Dam. Near Eureka Springs Arkansas Hoover Dam and Lake Mead. In Arizona Hydro electric dam. Small hydro electric dam harnessing water power in a mountain area Hop brook dam Naugatuck. The lake side of Hop Brook Dam in Naugatuck connecticut on a sunny blue sky day Gariep Dam. Free State, South Africa - the largest dam in South Africa with a radius of 360 square kilometers; (formerly known as the Hendrik Verwoerd Dam Hoover Dam. River and shoreline around Hoover Dam area Dam. For water in the lake Farmland with dam in Australia. Dam in rural farmland in South Gippsland, Australia Oklahoma Dam. Dam at lake Overholser in Yukon Oklahoma Guri dam. Hydroelectric plant on the Caroni River, southeast of Venezuela Hoover Dam. View of the Hoover Dam in Boulder, Nevada, USA Natural Dam Waterfall 1. Part of waterfall at Natural Dam, Arkansas Boardwalk by the dam. The boardwalk that lets people see the Post Falls Dam in Idaho Dam of china. The dam in changchun jilin city of China Tinker Creek Dam. On Tinker Creek located in Roanoke, Virginia, USA Gileppe Dam. Hydropower dam at Lake Gileppe, near Eupen (Belgium), during calm weather in the fall Hydroelectric dam. Looking up into a concrete Hydroelectric dam River Dam. Dam on river with beautiful scenery behind Arrowrock Dam. Boise River's Arrowrock Dam sits above Lucky Peak Lake, 6 miles off Highway 21 Beaver dam on stream. The beaver dam is constructed of logs and twigs to raise the water level Hoover Dam, Nevada, USA. Hoover Dam, once known as Boulder Dam, is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between Ross Dam. Wall with water flowing through open sluice gate Ross Dam. Rainbow and Ross Dam wall Ross Dam. View of the Ross Dam Wall Ross Dam. Maintenance taking place on Ross Dam wall Dam. MINOLTA DIGITAL CAMERA Wide shot of dam in Allegheny National Forest Dam and reservoir. Dam across the Serangoon River, Punggol Serangoon Reservoir, Singapore A dam on Wissahickon Creek and old railroad bridge, in Philadelphia, Pennsylvania. DAM. A Big Dam in Tamil nadu, south india. Photo Taken On: January 16th, 2014 Magic dam. Balidiha dam Alpine dam. Overview of the dam of Lake fedaia near the Marmolada mountain, in Italy


Tremco Retention Squares
Tremco Retention Squares are high-density polyethylene reservoir boards designed for use in GreenScape and amenity deck applications where a deep-well type water storage system is desired.
- When additional water storage capacity is required, the board is used as an underlying reservoir holding 0.27 gal/sq.ft. when filled with mineral aggregate
- The special underside channel profile provides high volume multi-directional drainage
- Used in conjunction with Tremco 7611+ Moisture Retention Mat


Water collection and pump chambers.
A range of 800 mm wide chambers for collecting ground, surface and foul water, fitted with a range of vortex and macerator pumps.
|Uniclass 2015||Private packaged pumping stations (Pr_70_55_76_62)|
800 Series Pump Chamber
Consult Delta Membrane Systems Limited for full performance data on suitable pumps.


High quality horizontal centrifugal sand suction pump is a sand pump designed for river sand dredging.
The concentration of the conveyed medium is more than 40% and the particle size is up to 50mm.
It is applicable for pumping sand, silt, dredging river ，lake ，channel, exploiting seashore, and pumping tailling slurry，conveying the slurries with solid particles for mine enterprises.
It has been widely used to sand pumping barge and blowing ship for cleaning silt, and used on land for conveying sand in long distance
Diesel engine or motor driven
sand pump impelller :closed impeller
Horizontal diesel sand pump set
Large capacity sand pump
Heavy duty sand pump
The sand pump has the characteristics of high hydraulic efficiency, good wear-resisting property, as well as stable performance when conveying the medium with solid particles.
1.Water Inlet Pipe 2.Handhole Cover 3.Front Cover 4.Front Lining Board 5.Pump Shell 6.Impeller 7.Back Lining Board 8.Back Cover
9.Packing Ring 10.Packing 11.Gland Cover 12.Impeller Nut 13.Front Bearing Body 14.Bearing 15.Bearing Cavity Cover 16.Shaft Housing
17.Front Bearing Cavity Cover 18.Pump Shaft 19.Back Bearing Cavity 20.Back Bearing Cavity Cover 21.Pump Coupling 22.Elastic Ring 23.Electric Connector


Pentax DV DV4 DV-P DV4-P Submersible Pumps
Pentax DV DV4 DV-P DV4-P Submersible Pumps are suitable for loaded waters with set-back Vortex type impeller, entirely made in cast iron. These pumps are designed for extremely heavy use and for pumping liquids with a high amount of suspended solids.
The sealing system consists of two mechanical seals lubricated in oil chamber.
The descent system for automatic coupling to the delivery piping is available.


Tsurumi pumps used in construction of new Singapore hospital
The hospital will be the largest in the country with four levels below ground and 19 above ground and it will play a key role in supporting the growing ageing population in the South East Asian nation.
Tsurumi’s KT-Z series pumps were used to pump slurry from a storage pit dug 18 metres below ground level to a water treatment system.
Due to the cast iron body and high-chromium cast iron impeller, the pumps performed stably under the challenging conditions without any problems.
The KT-Z’s slim design allows it to be used in confined spaces, and the discharge direction is selectable between vertical and inclined. This prevents bending, folding or bending of the discharge hose.
The pump with its 7.5-15kW motor incorporates seal pressure relief ports that prevent the pumping pressure from applying to the shaft seal.


tradearabia.com 22 Dec, 2016
Haya Water has completed the commissioning of the recently expanded Sewage Treatment Plant (STP) project in the Al Jebel Akhdar area of the sultanate. The STP has a total capacity of up to 600 cu. mtrs per day. This expansion is necessary due to development and population boom in the region. The commissioning works of the new expansion of the STP are completed in November.


Model NO.: MW 10SAP-6
Working Pressure: Low Pressure Pump
Position of Pump Shaft: Horizontal Pump
HS Code: 8413709990
Impeller Number: Single-Stage Pump
Influent Type of Impeller: Double-Suction Pump
Pump Casing Combined: Horizontal Split Pumps
Trademark: M&W pump
SA, SAP, SLA Type Single Stage Double Suction Split case Pump
The transferred medium temperature of SA (SAM, SAF, SAP, SLA) type single stage double suction split pump is between -20 degree to 80degree. It is applied to transferring industrial water, domestic water, running water, and applied to water conservancy projects and farmland irrigation and drainage.
SA type is for the transfer of clear water or the liquid with physical and chemical property similar to clear water.
SAM type is for the transfer of corrosive liquid containing a certain amount of solid particles.
SAF type is for the transfer of corrosive liquids.
SAP type is a new product remodeled by international advanced similar pump technology based on SA type pump.
Performance Range: Capacity Q: 72~9900m3/h
The operation parameters can be adjusted as per customers' requirements.
Structure: SA (SAM, SAF, SAP) type pump is installed horizontally with inlet and outlet line under the pump axial centerline. It only needs to remove the pump cover and take out rotor part without dismantling the inlet and outlet pipelines during the overhaul.
SLA is installed vertically. The suction inlet and discharge outlet are both horizontal. The split surface of pump body and pump cover is perpendicularly separated from axial centerline.
Bearing: Rolling bearings with grease or lubrication oil at both ends of the pump support the rotor part (24SA-18 and 16SA-90 can use sliding bearing).
Shaft seal: 1. Soft packing seal; 2. Mechanical seal.
The rotation direction is anti clockwise viewed from the end of motor (The rotation direction can be designed to be clockwise as per customers' requirements).
Material of flow passage components: The material of flow passage components is cast iron, but cast steel and brass can be used as per customers' requirements, which should be stipulated in the contract.
Model instruction: Eg. 10SA(SAP, SAM, SAF, SAL)-6A
10-The suction inlet diameter can be divided by 25 (which means
The suction inlet diameter is 250mm)
SA-Single stage double suction clear water pump
SAP-Upgraded from SA pump
SAM-Anti friction single stage double suction centrifugal pump
SAF-Anti friction single stage double suction centrifugal pump
SLA-Vertical single stage double suction centrifugal pump
6-The submultiple of specific speed divided by 10
A-The first cut of impeller


Lake of Four Seasons Dam RehabilitationHide-A-Way Hills, Ohio
After the owner noticed a slide developing on the earthen spillway of a Class 1 Dam, 2LMN was contracted to provide engineering, surveying and construction inspection for the project. 2LMN created a survey basemap of the dam, and the primary & emergency spillway as well as re-created the property lines along the shore line of the dam. The final engineering design was to construct a new earthen dam downstream of the existing dam and to size the primary and emergency spillways according to the current ODNR requirements. Construction was completed in one season and 2LMN managed the entire construction to ensure that the project was constructed in accordance to the plans.
Hide-A-Way Hills Club
Dam Design, Site/Civil, Survey, & Construction Administration


the upper altamaha initiative:
stormwater mitigation at whitehall mill lofts
Memo: Stormwater Issues at Whitehall Mill (PDF)
Illustrative Master Plan (PDF)
Perspective Sketches (PDF)
Sample Construction Documents (PDF)
Whitehall Mill Lofts Stormwater Retrofit Master Plan (PDF version of PPT presentation)
This project addresses the need for specific stormwater mitigation techniques at Whitehall Mill Lofts on the North Oconee River. Specifically, the project will seek to find ways to reduce the amount of water runoff at the site during storm events directly into the river by employing a variety of stormwater control methods.


Channel Drain Denver Channel Drain System Interior Basement Drain Channel6.
interior basement drainage channel, basement drainage channels install, basement channel drain, channel basement drainage system, waterguard perimeter basement drainage channel, basement wall drain channel, basement perimeter drain channel, basement floor drainage channel, basement waterproofing channel system, waterguard basement drainage channel, basement waterproofing drain channel, basement drainage channel, basement surface drainage channels, hydro-channel basement drainage system, basement wall drainage channel.
Gallery of Basement Channel Drain
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Grundfos Hydro SOLO-S Fixed Speed Pressure Booster Set with CR10 – Single Phase
Grundfos Hydro Solo-S booster set with one pump is a combined unit consisting of one pump (CR) fitted with isolating valve, discharge pipe, pressure switch, pressure gauge and diaphragm tank. Upon delivery the booster set is ready for operation.
Impellers and intermediate chambers are made of:
- Impeller: Stainless steel DIN W.-Nr. EN 1.4301
- Pump housing: Pump head and base are made of Cast iron
- The shaft seal has assembly length according to EN 12756.
- Power transmission is via cast iron split coupling.


$21M hydro project will power thousands of homes
DORENA LAKE, Ore. - The Dorena Reservoir Hydroelectric Power Plant project is about 4 1/2 months away from completion.
"Dorena is a perfect example of a retrofit project on existing federal land that's able to provide additional benefits to the community as well as the energy grid," said Brent Smith from Dorena Hydro.
Although construction will only take a year total, Dorena Hydro said the project has been in the works for almost 12 years.
Dorena Hydro said environmental surveys and government licensing have been responsible for the hold up.
The hydroelectric plant essentially takes in water from the dam through a pipe which then propels the water through two turbines.
Those turbines are powered by the water and in turn create electricity.
Once the water moves through the turbines it is released back out to the rivers.
Dorena Hydro said it's a balancing act between the normal water released from the dam and the water being released from the turbines. They said a modulator is in place to restrict to much water from entering the river at one time, helping to prevent a flood.
Mowak Construction won the bid for the project a few years back. Dorena Hydro says the total cost of the project is now estimated at $21 million.
Dorena Hydro LLC said the turbines can create up to 8 mega watts of electricity; 1 mega watt is enough power to 400-600 homes.
The electrical power will travel down the bike path on Row River Rd in Cottage Grove and drop off at a power grid near the Village Green in Cottage Grove. Pacific Power will then be buying the power from Dorena Hydro.
Dorena Hydro said their licenses to produce power at the dam are good for 50 years.


Around the country, more dams are being removed today than are being built. One example of a successful project is Hemlock Dam Removal on the Columbia River system.
This video showed in this year's Wild & Scenic Film Festival, and documents this project:
Of note in this video:
- Sediment management included excavation of a new channel upstream of the dam and trucking material off-site
- Site restoration utilized on-site trees removed from the project area as well as additional imported logs
- Community restoration involving local schools for re-vegetation of the project area
- Steelhead returned immediately once flows were re-introduced into the restored channel


The Hong Kong Water Supplies Dept. has awarded AECOM a $55-million design and construction services contract to reconstruct and upgrade the Sha Tin Water Treatment Works, one of Asia’s largest water treatment plants.
Sha Tin consists of two treatment trains. AECOM will oversee the expansion of the South Works to 145 million gallons per day from 95 mgd. The North Works has a capacity of 232 mgd but is not being upgraded. The overall capacity of the two plants will increase to 377 mgd from 327 mgd. Sha Tin provides water to two million people.
AECOM will provide detailed design and construction supervision. Common facilities for the existing plant—including inlet works, a chemical house, pumping station and the administration building— will be reconstructed, and a new visitor center will be built.
The tenders inviting bidders will be issued in January 2012, and construction will begin in June 2012. The project is expected to be completed in 2016. The overall cost is estimated to be $500 million.


Canadian engineer and construction firm Dessau-Soprin has won a US$70 million design and engineering contract for the 60-MW Rucatayo hydroelectric project in southern Chile.
Chile’s Hidrosur S.A. commissioned Dessau-Soprin’s Chilean subsidiary, Ingentra, to design the project in consortium with EDIC Ingenieros of Santiago. Work is to begin in June and be complete in 2007.
Rucatayo is to utilize two turbine-generators totaling 60 MW to generate more than 300 gigawatt-hours per year. The contract also includes design of a 36-kilometer, 220-kilovolt power line to an existing substation.


Shots of billboards advertising construction of the Arrow Dam and of the Duncan Dam on the Columbia River in British Columbia. Shots of large crane swinging concrete bucket of concrete pouring out, of crane operator. PAN of dam under construction. Shots of trucks moving across site, of large front loader unloading scoopfuls into trucks. Series of night shots of construction site, trucks, dam, workers. Oblique AERIAL SHOTS of Arrow Dam construction site. Oblique AERIAL SHOT of town of Castlegar, British Columbia.


The Azad Pattan hydropower project is a 700MW run-of-the-river hydroelectricity generation facility being developed on the Jhelum River in Pakistan occupied Azad Jammu Kashmir. It is being developed under the China-Pakistan Economic Corridor (CPEC) framework as part of China’s Belt and Road Initiative (BRI).
The project is being developed on a build-own-operate-transfer (BOOT) basis by Azad Pattan Power Private Limited (APPL), a joint venture of China Gezhouba Group (80%) and Pakistan renewable energy developer Laraib Group (20%). APPL will transfer the ownership of the project to the Government of Pakistan, after operating the facility for a period of 30 years.
China and Pakistan signed a £1.2bn ($1.5bn) deal for the Azad Pattan hydropower project in July 2020. It is the second major CPEC project agreement between the two countries after the £1.9bn ($2.4bn) deal for the 1.12GW Kohala hydropower project that was signed in June 2020.
The Kohala hydropower project is also located on the Jhelum River in Pakistan occupied Azad Jammu Kashmir.
The construction period for the Azad Pattan hydropower project is estimated to be sixty-nine months. Scheduled for commissioning in 2026, the hydroelectric facility is expected to generate more than 3.265 billion units of clean electricity a year.
Project location and development
The 700MW hydropower project is located approximately 7km upstream of the Azad Pattan bridge on the Jhelum River, near the Muslimabad village, Sudhnoti district, in Azad Jammu Kashmir, Pakistan. The project site is approximately 90km away from the capital city Islamabad.
Azad Pattan is one of the five cascade projects planned on the River Jhelum. The remaining four projects are Chakoti Hattian, Kohala, Mahal, and Karot.
The project site occupies approximately 633ha of land and is located upstream of the 720MW Karot hydropower project and downstream of the 640MW Mahal hydropower project.
The Private Power Infrastructure Board (PPIB) of Pakistan issued the letter of support (LOS) for the project in June 2016, while the project design was approved in December 2017 and the environmental approvals were obtained in March 2018.
Azad Pattan hydroelectric plant make-up
The Azad Pattan project will comprise a 90m-tall reinforced cement concrete (RCC) gravity dam with its crest 535m above sea level, a 170m-long and 20m-wide underground powerhouse equipped with four 178.9MW Francis turbine-generator units and 12 single-phase generator transformers.
The dam will create a 3.8km2 reservoir area and will have four spillway gates each measuring 14m x 22.5m x 22m. The project involves two diversion tunnels on the right side of the river that will be 400m and 495m long, while the width and height of both the tunnels will be 12.5m and 14m, respectively.
The powerhouse will measure 170m x 20m. Apart from four Francis turbine generators, it will house 12 single-phase generator transformers.
Water from the reservoir to the underground powerhouse will be released through four 8m-diameter headrace tunnels measuring 101m, 122m, 145m, and 160m long and four 6.5m-diameter penstocks. The design discharge capacity of each penstock will be 315m3/sec.
The project also includes four U-shaped tailrace tunnels measuring 156m, 184m, 211m, and 238m long respectively.
Power transmission and off-take
The electricity generated by the Azad Pattan hydropower facility will be purchased by the National Transmission & Despatch Company (NTDC) for distribution in the national grid.
The power plant will be connected to the existing 500kV transmission line from the Kohala HPP to the Maira Switching Station.
China Gezhouba Group Company and China Gezhouba Group International Engineering were awarded the engineering, procurement, and construction (EPC) contract for the Azad Pattan hydropower project in June 2017.


Pilot Control ValvesPVD series
PVD series is a pressure-reducing type pilot valves to control spools of multiple control valves. It has a damping part, suitable for controlling travel.
- The operational torque can be reduced according to the customer's requirement, and the small operational force enables minute control.
- Damping force depending on velocity is given at any position of the operating lever.
|Max. Inlet Pressure (MPa)||6.9|
|Output Pressure (MPa)||0～2.9|
|Rated Flow (L/min)||10|


Place of Origin:
1 Mw Hydro Generator Water Turbine Governor
As an important part of the water turbine, the governor of the water turbine is also a key part to realize the adjustment of the water turbine. In order to ensure the normal operation of the turbine and to ensure the normal and stable operation of the hydropower station, the turbine governor generally has two functions: grid connection function and adjustment function.
According to the applicable unit type of governor, it can be divided into: impact governor, monotonous, double adjustment. Impulse governor is suitable for impulse turbine generator set; monotonically suitable for Francis type, axial-flow fixed blade type and other turbine generator sets without blade regulation; double regulation is suitable for axial-flow paddle type and bulb tubular turbine generator set with blade regulation.
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BISMARCK, N.D. – Gov. Doug Burgum signed into law a funding bill for the State Water Commission that includes $82.5 million for the major flood control project for Minot.
The bill also includes $66.5 million for the Fargo-Moorhead area flood protection project, with $750 million in intent language for the project.
In signing the bill, Burgum shared disapproval that the intent for the Fargo-Moorhead project wasn’t $870 million, saying the project will protect the state’s largest metro area.
The largest part of the Minot flood protection project is slated to be finished by the end of 2020.


TSI Flow Products manufactures 7" Crown Check Valves with improved flow dynamics that reduces turbulence and erosion. With a working pressure of 15,000 PSI and a max recommended flow rate of 120 BBL/M.
7" Crown Check Valve Features:
- Working Pressure: 15,000 psig.
- Max recommended Flow Rate: 120 BBL/M.
- Improved flow dynamics reduces turbulence and erosion.
- Covered pin & ZERO turn pin design increase pin service life.
- Connections: 7-1/16” 15,000 psi Studded x Studded FL.


Adjustable pressure reducing valve with MM - PN25 connections, with single stainless steel seat and compensated piston operation
Adjustable pressure reducing valve with MM - PN25 connections, with single stainless steel seat and compensated piston operation. Suitable for water conveyance.
|Nickel brass body.|
|Stainless steel AISI 303 seat seals.|
|Threaded connections MF UNI-EN-ISO 228.|
|F1/4" pressure gauge holder connection.|
|Nominal pressure 25 Bar|
|Max upstream pressure 25 Bar|
|Adjustable downstream pressure 0.5 ÷ 4 Bar (with inlet pressure of 8 Bar)|
|Max operating temperature 80 °C|
|Default presetting 3 Bar|
Pressure reducing valve with MM connections - pn 25
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If it doesn't arrive in the next few minutes, don't hesitate to contact us.T: +390302537211 M: firstname.lastname@example.org


The Tidong River
Kjela power plant
Kjela power plant is located in Vinje Municipality in Vestfold and Telemark County.
1979Entered into operation
60 MWInstalled capacity
245.7 GWhAnnual production
The power plant was commissioned in 1979 and is part of the extensive Tokke-Vinje development. The power plant gets its operating water from Lake Førsvatn, which is the intake and regulating reservoir. The reservoir can be regulated between 891 and 829 metres above sea level.
The plant also has multiple reservoir lakes that can transfer water to Lake Førsvatn: Langesæ, Bordalsvatn, Kjelavatn and Ståvatn. This provides excellent, regulated power generation.
Kjela power plant has one generating unit with a Francis turbine. The installed capacity is 60 MW.
The gross height of fall is 185 metres.


Dayliff DFP sanitary pumps are of single stage centrifugal impeller specifically designed to meet the hygiene requirements of sterile operating processes. They are suitable for various applications including water supply systems, pressure boiler feeding, pure water treating systems, pharmaceutical, food and refining chemical industries. The design features optimised hydraulics for high efficiency and polished internal finishes to prevent fouling by bacteria and germs. Pump hydraulic end construction is AISI 316L stainless steel throughout with specialised mechanical seal that can handle hot pumped media.
Pumps are close coupled to reliable TEFC electric motors designed for continuous duty. Single phase motors have integral thermal protection and can be connected directly to the mains power through a 10A fuse or MCB. Three phase motors require a remote DOL starter.
Enclosure Class: F
Pumped Liquid: Low viscosity fluids with a max. viscosity of 150mm²/s
Maximum Operating Pressure:10 bar
Maximum Temperature : 110º C


Roto MR/RM are based on classical design retaining its compact and robust construction. These pumps have combined bearing and pump housing and incorporate hollow shaft which accommodates the coupling rod, thereby reducing overall length of the pump. Standard sealing arrangement is in gland packing; however these pumps can also be supplied with mechanical seals.
These pumps are available in both free molded and molded to metal stator designs. The maximum pressure for Free Molded pump is up to 9 Bar and for molded to metal up to 12 Bar.


Over 2,500 residents of Kayafungo ward in Kilifi county are set to get access to clean water following the construction of a water pipeline.
Marking World Water Day on Friday 22nd March 2024, Kilifi Governor Gideon Mung’aro launched the construction of Dam View to Tsangatsini Phase 2 Pipeline.
Once completed the project will benefit residents from Mnyenzeni, Kirumbi, and Tsangatsini areas.
According to Mung’aro, facilities including Tsangatsini dispensary, Kirumbi secondary school, Kirumbi Primary school, and Tsangatsini secondary and primary schools will have water.
3000 heads of cattle will also get water from the project.
“The project consists of the construction of a 12km water pipeline – 4 inch HDPE pipe material and rehabilitation of 8 water kiosks along the pipeline,” said Mung’aro.


This submersible well pump control box is designed for use with 3/4 HP 4 in. submersible well pumps fitted with 3-Wire, 230-Volt submersible motors. It is easy to install. It has a corrosive resistant cover.
Capacitor start and induction run design for efficient operation
Can replace other manufacturer's control boxes for 3/4 HP 4 in. submersible motors
Installs easily; has numerous electric knock outs
Heavy duty terminal connections for wire as large as #4 AWG


Mawson Stormwater and Placemaking
Indesco was engaged to perform the detail design of the flood protection infrastructure in the upper reaches of Yarralumla Creek just upstream of the Mawson Group Centre, the associated low levee banks required from the playing fields to the existing stormwater channel and the upgrade/maintenance works required along the existing stormwater channel adjacent to Mawson Drive.
The project will address flooding issues identified in earlier EPSDD studies and the the Mawson Group Centre Master Plan and support the Land Release. Program within the Mawson Group Centre. The project will also review existing and future land use plans, park and ride and other transportation studies (including possible future extension of light rail along Athlon Drive), as well as possible impacts on pedestrian, cyclist and vehicular movement through the site.


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The project work for this $1.3 Million sewer system rehabilitation project includes Preliminary Engineering Report, funding coordination, design permitting, and other miscellaneous projects management.
The system consists of +/-12,950 LF of primarily 8" VCP pipe, with 45 concrete manholes. Another 550 LF of 10" transit sewer outfall pipe exists up gradient from the lagoon influent manhole.
The Phase II project will consist of a new wastewater treatment (facultative lagoon) system, followed by discharge/disposal that will be designed and constructed in strict accordance with MT DEQ Standards.
Winifred Waste Water System Improvements
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Safe Passage Opiate Addiction Program
...the Flood Warning Continues For The Following Rivers In Indiana... Kentucky...illinois...and Missouri Ohio River At Newburgh Dam, Indiana, And At Cairo, Illinois. .flood Warnings Continue Along The Ohio River At Newburgh Dam And Cairo. At Newburgh Dam, The Is River Is Cresting Now Near 38.5 Feet. The River Will Fall Below Flood Stage Tomorrow Morning. At Cairo, The River Will ...Read More.
Effective: November 23, 2018 at 6:00amExpires: November 24, 2018 at 6:00amTarget Area: Alexander; Pulaski


Now showing items 31-40 of 53
Hydraulic analysis and direct design of multiple outlets pipelines laid on flat and sloping lands
(American Society of Civil Engineers (ASCE), 2006)
Adequate hydraulic analysis of a multiple outlets pipelines is very important for the design and evaluation of irrigation systems. In this paper, an analytical direct design procedure for a single multiple outlets pipelines ...
Simplified procedure for hydraulic design of small-diameter plastic pipes
(John Wiley and Sons Limited, 2009)
A simple, direct and efficient semi-theoretical approach was developed to solve the hydraulic design problem of a horizontal or uphill sloping, single-diameter multi-outlet pipe. The proposed simplified model is essentially ...
Analytical relationships for designing multiple outlets pipelines
(Asce-Amer Soc Civil Engineers, 2009)


Leakage to ground water resulting from the expansion and contraction of reservoirs cannot be easily simulated by most ground-water flow models. An algorithm, entitled the Reservoir Package, was developed for the United States Geological Survey (USGS) three-dimensional finite-difference modular ground-water flow model MODFLOW. The Reservoir Package automates the process of specifying head-dependent boundary cells, eliminating the need to divide a simulation into many stress periods while improving accuracy in simulating changes in ground-water levels resulting from transient reservoir stage. Leakage between the reservoir and the underlying aquifer is simulated for each model cell corrresponding to the inundated area by multiplying the head difference between the reservoir and the aquifer with the hydraulic conductance of the reservoir-bed sediments.
Additional publication details
Simulating reservoir leakage in ground-water models


Fort St. John, B.C. – The Site C Dam project in B.C. achieved a breakthrough this month. Officials announced that the first of two diversion tunnels broke through on June 22.
Both tunnels will be used to temporarily reroute a brief section of the Peace River to allow for construction of the dam across the main channel of the river. River diversion is scheduled for this September.
The first tunnel is approximately 700 metres long and 12 metres in diameter. Work on the tunnel began last July.
The tunnel was dug using roadheaders to grind away rock and load it on to conveyors. The rock is then hauled away by truck and stored on site.
Crews are now working to line the tunnel using a custom-built slip form where concrete is pumped through small openings located around the slip form. This enables it to cure in a perfect circle outside the form.
Each pour takes two to three days to cure, and the liner thickness can range between 40 centimetres and 200 centimetres. In total, about 41,000 cubic metres of concrete will reinforce the walls of both tunnels.
This work is the last step in the construction of the diversion tunnels prior to river diversion in fall 2020.
BC Hydro anticipates it will break through on the second tunnel next month.
Once operational, the capacity of the two tunnels will be 3,000 cubic metres of water per second. On average, the diversion tunnels will typically pass river flows between 500 and 1,800 cubic metres per second.


Construction of Certain Public Works for Flood Control in Arizona and New Mexico: Hearing ... Seventy-fourth Congress, Second Session ... March 17, 1936
U.S. Government Printing Office, 1936 - Floods - 15 pages
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acre-feet Agriculture amendment Ariz Arizona boundary line built Buttes sites California Chief of Engineers Committee on Commerce Congress construction consulting engineer control projects Coolidge Dam Coolidge Reservoir dam sites dams mentioned data on file Department determined developed diversion dam Docket Numbered examination file with Public flood control flood-control projects flow following new paragraph Gila River Basin grazing Green Canal Green Dam incidental benefits insert the following intercepting channel irrigated lands irrigation projects Lake Okeechobee Lieutenant Colonel Edgerton line 21 lower Gila lower Mississippi ment Mexican side middle Gila River Mogollon Reservoir MORRIS SHEPPARD navigation originates in Mexico Pima County Public Works Administration purpose railroad reservoir sites Riverside Sabino Canyon Sacramento Safford Valley San Carlos project San Carlos Reservoir San Pedro River Santa Cruz River Senator Hatch Senator Hayden Senator Sheppard senior hydraulic engineer Soil Conservation Service Sonoita River storage capacity subcommittee testimony tributaries upper Gila Verde River watershed


Lake Gonzales, also known as H-4 Reservoir and as Guadalupe Reservoir H-4, is on the Guadalupe River four miles southeast of Belmont in western Gonzales County (at 29°30' N, 97°37' W). The project, in the Guadalupe River basin, is owned and operated by the Guadalupe-Blanco River Authority for the generation of hydroelectric power. The authority purchased this and five other projects on the Guadalupe River by a contract that became effective on May 1, 1963. Dam construction for the reservoir was started in 1929 and completed in 1931, when water impoundment and power generation began. In the 1980s the reservoir had a capacity of 5,200 acre-feet and a surface area of 696 acres at an elevation of 332 feet above mean sea level. The reservoir is maintained at a practically constant level, except during floods, by regulation of the power output to the water inflow. This project's hydroelectric power plant is part of the dam structure. The power plant, which consists of one generating unit with all auxiliaries, has a generating capacity of 2,400 kilowatts. The river flow has been partly regulated since June 1964 by releases from Canyon Lake. The drainage area above the dam is 2,038 square miles.
- ✅ Adoption Status:
- This place is available for adoption! Available for adoption!
Lake Gonzales is part of or belongs to the following places:
- Surface Area (in acres): 696
- Storage Capacity (in acre-feet): 6,500
Lake Maintained or Owned by
Guadalupe-Blanco River Authority
Date of Origin1931 (93 years ago)
Lake Gonzales is classified as a Lake
- Power generation
- (H-4 Reservoir)


Tachira state - Venezuela
CONINTUR Joint venture: Astaldi Estero, Cogefar, local contractor
1981 - 1983
Description for Uribante Doradas Hydropower (Venezuela)
Hydroelectric project with IP = 300 MW.
- La Honda Dam, zoned earth fill with central vertical impervious core ( H = 140 m; L = 560 m; V = 9.3 Mm³ )
- Upper Headrace Tunnel ( L = 6.6 km, A = 22 m² )
- Surge Shaft ( H = 134 m, A = 113 m² )
- Pressure Shaft, partly steel lined ( H = 271 m, A = 22 m² )
- Lower Headrace Tunnel ( L = 1.2 km, A = 22 m² )
- Steel Lined Underground Penstocks ( No. 2; L = 360 m; D = 3 m )
- Outdoor Power House equipped with two pelton turbines with a distributor of six nozzles ( D = 3.3 m; n = 225 rev/min )
- Ancillary Works: intake structures, drainage tunnels around the surge shaft, above the penstocks and the lower headrace tunnel, access galleries for construction and inspection purposes
- Overall revision of the final design
- Consultancy for the selection and the optimization of the underground excavation and support techniques
- Campaign of laboratory and in situ tests for the geotechnical characterization of rock masses and the rock bolting methods
Hydropower Projects (Ghana)
The scope of the assignment, commissioned by...
Rio Grande Hydropower (Argentina)
Hydroelectric Plant with Pumped Station.
Maswa Aqueduct (Tanzania)
Maswa project including domestic water supply pipeline for the district...
Enguri Cascade Hydropower (Georgia)
ENGURI HPP Cascade envisages the construction of three hydropower plants on...
Lefkara Storage Plant (Cyprus)
Storage works for Famagusta urban water supply.
Rumakali Hydropower (Tanzania)
Hydroelectric Power Plant, with IP = 525 MW, which the exploits of N° 5...
Beles Multi-purpose Project (Ethiopia)
The Beles multi-purpose project is a hydropower...
Rio Mannu Multi-Purpose Project (Italy)
Concrete gravity dam for water supply and irrigation to be constructed in two...
Busalletta Dam (Italy)
Dam built to provide a reservoir for the urban water supply of Genoa.


Here is the latest progress update on the Kagay-an Bridge Improvement Project wherein the temporary detour at the Carmen side is currently ongoing. The project involves demolition of the existing abutment and will be replaced with new bridge structures allowing the river to flow beneath. Photos by Project LUPAD.
Details of the project are indicated below.
Likewise, the approach at Paseo del Rio will also be raised together with the dike structures. More project layouts and description in our previous post below.
More latest aerial photos below by Project LUPAD.
Watch full video below.
More photos in the link below.


The Husqvarna FC 40 is a flow and pressure controller which is to be connected to hydraulic machines with flows up to 120 l/minute and for maximum pressure of 210 bar. It reduces the flow to 20, 30 and 40 l/minute. Perfect for use with Husqvarna's hydraulic equipment like the DM460H, K2500 and K3600 MK II.
Hydraulic Control Valve
|Max capacity, gpm||30|
|Flow, gpm||5, 8, 10|
|Pressure, psi||Input max: 3,000|
Output max: 2,000
|Connections||Flat faced couplers|


Cemetery Creek Fish Habitat Enhancement Project consists of construction of new system channel segments, construction of 3 ponds; enhancing a wetland swale and management & diversion of surface waters. Damage pipeline spill Whatcom Creek, June 10, 1999.
This project is intended to rehabilitate the abutmemts and deck of the Holly Street Bridge crossing Whatcom Creek. This will be accomplished using "jet grouting" technology to limit disturbance to the creek bed.
Depot Market Square is a dynamic project that includes a large pavilion structure and two sheds on an existing parking lot. The project includes street improvements including new street and pedestrian lighting, roadway resurfacing, bicycle racks.
This project consists of constructing a roundabout at the intersection of Cordata Parkway and Westerly Drive and resurfacing Cordata Parkway between Bakerview Road and the new roundabout improvement.
This project includes the construction of a new water pump station to provide fire flow for Western Washington Universitys student housing.


Texas Water Development Board approves $15 million to the Crystal Clear Special Utility District (Comal, Guadalupe, and Hays counties) for water system improvements
For immediate release. Contact: Kimberly Leggett at 512-463-5129
AUSTIN – (May 4, 2017) – The Texas Water Development Board (TWDB) today approved by resolution financial assistance in the amount of $15 million from the Drinking Water State Revolving Fund to the Crystal Clear Special Utility District (Comal, Guadalupe, and Hays counties). The assistance will finance planning, acquisition, design, and construction costs associated with water system improvements.
The District could save approximately $2.3 million over the life of the loan by using the Drinking Water State Revolving Fund.
The District will be able to complete 11 projects aimed at improving the District’s water system with the assistance approved today. Projects will include improvements to ground and elevated storage tanks, as well as to the water treatment plant and distribution system.
The TWDB is the state agency charged with collecting and disseminating water-related data, assisting with regional planning and preparing the state water plan for the development of the state’s water resources. The TWDB administers cost-effective financial assistance programs for the construction of water supply, wastewater treatment, flood control, and agricultural water conservation projects.


Generally, there are no directional requirements for the installation of gate valves. but gate valves cannot be installed upside down.
Gate valve, also called sluice valve, sluice gate valve, water gate valve, is one kind of industrial valve which has one valve plate perpendicular to the direction of the fluid flow. that plate moves up and down inside the gate valve body to control the opening and closing of the valve. Gate valves can only be opened and closed fully, so gate valves cannot be used for regulating.
Types of gate valves:
for different shaft structure, gate valves can be divided into rising shaft/OS&Y gate valves and non rising shaft gate valves.
With different body material used, gate valves can be divided into cast iron gate valves, ductile iron gate valves, carbon steel/WCB gate valves and stainless steel gate valves.


ISLAMABAD - Twenty Three percent work on the phase-I of Kurram Tangi Hydro Project, in North Waziristan, has been completed and the PC-I related to the command area development of the project will be moved to the CDDWP for approval.
The phase-I of the Kaitu Weir power project which will also generate 18.9MW electricity will be completed by April 2019, official documents available with The Nation said.
The project is located across Kurram river in North Waziristan Agency about 14 KMs upstream of Kurram Garhi Head works and 32KMs North of Bannu City in previously Federally Administrated Tribal Area (Fata).
According the documents the Kurrum Tangi Dam Project (KTDP) is multipurpose water development projects located across Kurram and Kaitu Weir river in North Waziristan district of KP.
Kurrum Tangi dam project (KTDP) is divided in two phases which include Phase-I, Kaitu Weir hydro power project, and Phase-II, Kurrum Tangi dam project (KTDP).
Work on Kaitu Weir project has been started in 2016 and the project will have a height of 18 ft and Feeder Tunnel Discharge Capacity will be 633.4 cusecs.
The project is schedeuled to be completed by April 2019 and on completion the project will generate 18.9 Megawatt of electricity and will irrigate around 16380 acres of land.
Kaitu Weir has further been divided into two components which includes Kaitu Weir hydro project, development of affiliated structure and development of command area the project.
The first component is being executed by Wapda while the second one by FATA Secretariat. American aid agency USAID is funding the main portion of the Kaitu Weir Hydro project while Italian government is funding development of command area of the project.
The total cost of the project is Rs4740.11 billion which will be shared by local ADP of Rs295.18 million and Rs 4444.93 billion by the Italian government. The project will be completed in three years.
The phase-II of the KTDP will start later which includes the dam height of 322 ft and it has the gross storage capacity of 1.20 MAF while it will generate 83.4 MW (350 GWh) electricity. The total command Area of the project is 84,380 acres which will be irrigated through Sheratalla Canal 12,300 acres, Spaira Ragha Canal 4,080 acres and Thal Canal 68,000 acres.
The working paper of command area development of Kaitu Weir project has already been submitted to the Ministry of Planning Development and Reforms and will be tabled to the upcoming meeting of Central Development Working Party (CDWP) for approval.


The firm spearheading the construction of Karuma hydropower plant in Uganda says that the project is 70% complete with commissioning slated for December 2018.
China’s Sinohydro Corporation Ltd has announced that the progress of Karuma hydropower project located in Kiryandongo District is impressive.
The firm’s Vice-President, Wang Yantao said that the project whose construction kicked off in 2013 will be completed in time and on set budget.
Uganda’s state minister for energy, Simon D’Ujanga said the project is major milestone for Uganda.
“The 600MW Karuma Hydro Power project is one of such big hydro power projects under construction and that once complete will provide reliable and affordable electricity to our people,” D’Ujanga said.
The USD 1.7 billion project is funded by Export and Import (EXIM) Bank of China.The plant will generate 600 megawatts of hydroelectricity upon completion.
In April 2016, the construction suffered four months long delays after cracks emerged in its only dam. But major repairs were undertaken to remedy the situation and prevent further cracking. Construction resumed in August last year.
The project employs some 5,000 Uganda and 1,000 Chinese expatriates from the Sino Hydro Power Company undertaking the works.


- Flood Warning issued August 04 at 3:55PM CDT until August 05 at 9:20AM CDT by NWS
- Effective: 3:55 p.m. on Sunday, Aug. 4, 2013
- Expires: 9:20 a.m. on Monday, Aug. 5, 2013
...The Flood Warning continues for the following streams in Kansas...
Cottonwood River near Emporia affecting Lyon County
Neosho River Near Neosho Rapids affecting Coffey and Lyon Counties
Lyon Creek above Woodbine affecting Geary County
Republican River at Clay Center affecting Clay County
The Flood Warning continues for
The Republican River at Clay Center.
* until Monday morning.
* At 3:30 PM Sunday the stage was 15.9 feet.
* Flood stage is 15.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by
* Impact...At 15.0 feet...Lowland agricultural flooding occurs from
U.S. Highway 24 to Milford Lake.
- See more at NOAA


Honda WX10K1 Water Pump
- The 13.4-lb. WX10K1 is powered by Honda's compact 25cc overhead cam mini four-stroke engine.
- Lightweight aluminum centrifugal self-priming pump with aluminum impeller and volute
- 80-second priming time at 16.4 ft.
- 118-ft. total head with 26-ft. suction head lift
- 51-psi maximum output pressure
- Rotary slinger pumping lubrication system enables starting, operation and storage in any position


Placing floating solar panels in dams of hydroelectric plants Lithuanian Business Support Agency sees potential in the innovation and has granted 235,000 euros for the project at the Kruonis hydroelectric plant.
The first stage of the project is scheduled to be completed by the end of 2021. State-owned enterprise Lietuvos Energijos Gamyba will be developing the project with scientists from Kaunas University of Technology.
The firm and scientists seek to install the experimental 60-kilowatt (kW) plant in the upper reservoir of the Kruonis plant. They hope the full capacity would reach 200-250 MW, bringing energy enough for 120,000 households and will triple currently installed solar power capacity in Lithuania. (BNN/Business World Magazine)


The Texas Water Development Board approves $200,000 in financial assistance to the Vista Verde Water Systems, Inc. (Montgomery County) to finance water system upgrades
For immediate release. Contact: Kimberly Leggett at 512-463-5129
AUSTIN – (April 17, 2014) – The Texas Water Development Board (TWDB) today approved by resolution financial assistance in the amount of $200,000 in loan forgiveness from the Drinking Water State Revolving Fund for Vista Verde Water Systems, Inc. (Montgomery County). The assistance will finance planning, design, and construction of water system improvements to the existing water system.
Vista Verde Water Systems, Inc. could save approximately $338,340 by receiving financial assistance from the Drinking Water State Revolving Fund.
Vista Verde Water Systems, Inc. will upgrade its system by constructing a new water well. The new well will use a different formation in the Gulf Coast Aquifer, which will improve water quality.
The TWDB is the state agency charged with collecting and disseminating water-related data, assisting with regional planning and preparing the state water plan for the development of the state’s water resources. The TWDB administers cost-effective financial assistance programs for the construction of water supply, wastewater treatment, flood control, and agricultural water conservation projects.


Analysis and Application of the Circulation Performance of Y Type Globe Valve
SHEN Jin-hua;CNNC Sufa Technology Industry Co.,Ltd.;
The factors affecting the circulation capacity of Y type globe valve are introduced. The structural characteristics of the valve body of the Y type globe valve are analyzed and the test results are given respectively according to its performance parameters. The improvement measures and methods for improving the circulation capacity of the Y type globe valve are proposed.
【CateGory Index】： TH134


The integrated structure of the submersible motor and pump can carefully design and successfully develop a new generation of products according to customer requirements and conditions of use.
The Vertical Axial Flow Pump is a submersible axial flow and mixing pump featuring high flow, wide lift range and high productivity. The integrated structure of the submersible motor and pump can carefully design and successfully develop a new generation of products according to customer requirements and conditions of use. The hydraulic model has reached the domestic leading level. The old model flow is 20%, the efficiency is 3%5%, and the anti-cavitation performance is good.
1) It is equipped with motor protection class IP68, motor insulation class F;
2) The axial flow pump has two or three mechanical seals with graphite and carbon silicon;
3) It is equipped with a leakage protection sensor;
4) The submersible motor winding has an overheat protector.
A) Flow: 500 - 60, 000m3/h
B) Head: 4 - 21m
C) Medium temperature: 0 ~ 50oC
D) Operation pressure: 5.5 - 1, 120
E) Diameter: 350 - 1, 600mm
The Vertical Axial Flow Pump features an adjustable impeller with large capacity, large drill bit, high efficiency and a wide range of applications.
1. The pumping station is small in scale, simple in construction, and the investment is greatly reduced, which can save 30% - 40% of the construction cost;
2. It is easy to install, maintain and repair such a pump;
3. Low noise and long life.
QZ, QH series materials can be cast iron, ductile iron, copper or stainless steel.


The Schwarzenbach Dam is a gravity dam near Forbach in the Northern Black Forest of Germany. It is the most important structure of the Rudolf-Fettweis-Werk's pumped storage power station. The operator of the dam, which was completed in 1926 in a side valley of the Murg valley, is EnBW Kraftwerke.
The reservoir collects the water on the eastern slopes of the rainy main crest of the Northern Black Forest, below the mountains of Hornisgrinde, Mehliskopf and Badener Höhe. The Schwarzenbach and Seebach streams are directly impounded, the water of the Biberach and Hundsbach are led by galleries from neighbouring valleys. In addition, the water of the Murg from the Murg Dam is pumped into the reservoir. The dam system provides load balancing in the energy supply. Its maximum output is 44 megawatts .
Copyright: CC 3.0


The TD335HH 19HP Apex pump is one of the mid-sized models in the pumping range and features a top discharge design. This dual impeller design makes it suitable for high head dewatering applications. This pump model uses the same frame as the 13HP models and is capable of higher head requirements up to 300 ft of TDH. The portable design of the TD335HH 19HP also features adjustable polyurethane wear parts. Standard impellers are stainless steel.
Exploded Parts Drawing ⇨


The Mechanism of Muffler Check Valve
The muffler check valve is a kind of valve that automatically opens and closes the valve flap with the flow movement of the medium itself to prevent the backflow of the medium. It’s also known as counter-current valve and back pressure valve.
A muffler sanitary check valve is a kind of automatic valve. Its main use is to prevent backflow of the media, prevent reversal of pump and driving motor, discharge media in the container. It can also be used in pipelines that supply auxiliary systems in which the pressure may increase to or exceed the system pressure. It can be divided into swing-type (rotates according to the center of gravity) and lift-type (moves along the axis).
The purpose of the muffler check valve is to only allow the medium to flow in one direction and to prevent the flow in the reverse direction. Usually, this type of valve works automatically.
The valve flap opens under the pressure of the fluid flowing in one direction; when the fluid flows in the reverse direction, the fluid pressure and the weight of the valve flap have an effect on the valve seat, shutting off the flow.
When should check valves be used?
A check valve will be used commonly on the discharge of the pump to prevent backflow from the downstream system when the pump shuts off. Check valves are also used to prevent contaminated media in branches from flowing back into the main trunk line.
Thank you for reading our article and we hope it can help you better understand the mechanism of the muffler check valve. If you want to learn more about muffler check valves, we would like to advise you to visit Adamant Valve homepage for more information.


Chinese Hydropower Output Curtailed
Sustained heavy rainfall in south eastern China has led the Three Gorges Dam and the smaller Gezhouba Dam to cut hydropower generation substantially in order to alleviate flooding downriver, Reuters reports. The Three Gorges Dam (the world’s largest power station with generating capacity of 22,500 MW) has reduced power generation from 18.1 GW to 6.0 GW, while the Gezhouba dam has lowered generation from 2.9 GW to 1.5 GW. In the short term this could lead to a stronger July than expected for thermal power generation, however, it will also serve to replenish reservoirs serving other hydropower projects in the region. For guidance, hydropower accounted for around 8% of Chinese electricity production in May.


This guide cover design and construction of road drainage (stormwater) drains. These drain water from a water table to the outside of a road. They are often made of corrugated PVC. It is also common practice to construct a sediment trap immediately before a culvert inlet. Culverts used to cross rivers are described in FPGs Crossings.


Brattset is an 80MW hydro power project. It is located on Orkla river/basin in Trondelag, Norway. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in 1982.
|Project Type||Total Capacity (MW)||Active Capacity (MW)||Pipeline Capacity (MW)||Project Status||Project Location||Project Developer||Hydropower||80||80||–||Active||Trondelag, Norway|
Statkraft Energi, TronderEnergi and Eidsiva Vannkraft are currently owning the project having ownership stake of 48.6%, 35% and 12% respectively.
Brattset is a run-of-river project. The gross head of the project is 273m. The project generated 400 GWh of electricity.
The hydro power project consists of 2 turbines, each with 40MW nameplate capacity.
The project got commissioned in 1982.
Norsk Elektrisk & Brown Boveri supplied electric generator(s) for the project. The generator capacity is 46 MVA.
All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.


In June 2012, the Connecticut Metropolitan District Commission (MDC) awarded E.T.& L. Corp. a $2.6 million contract for the rehabilitation of the West Hartford Reservoir No. 2 Dam and Dikes. The rehabilitation project will provide improvements that will address safety deficiencies, reduce risks to downstream communities and natural resources, and improve the life expectancy of the dam structures. The five major components of the 237 acre reservoir – the 1,425 foot long Main Dam, Spillway, North Dike, Division Dike and South Dike – will all be addressed.
A temporary cofferdam will be constructed to allow repair and replacement of the Main Dam mid level and low level outlet works, including new intakes, outlets and upstream and downstream gates and gatehouses. Sediment, erosion and seepage control measures will be used to protect the reservoir and downstream areas. The spillway and dikes will be stabilized with new riprap and erosion protection on upstream and downstream sides, and unacceptable vegetation will be removed.
Since the roadways and walking trails throughout the MDC area are heavily used by pedestrians, detour signs and extensive safety measures will be employed to maintain safe access for park users during the project. Work on the West Hartford Reservoir Dam No. 2 is scheduled to be complete by February 2014.