Are you in the market for a new pump? Do you know the difference between a single suction pump and a double suction pump?
If not, you’ve come to the right place. In this article, we’ll explore the advantages and disadvantages of both types of pumps, as well as their working principles and differences in price.
By the end of this article, you’ll be able to make an informed decision on which pump is best suited for your needs.
So, let’s dive in and learn about the world of pumps!
1. Double suction pump
The impeller of the double-suction pump is comprised of two back-to-back impellers, and the water that flows out of the impeller converges into a volute. With improved structure, the double-suction pump is widely used in engineering due to its high head and large flow.
The double-suction pump has two suction chambers. Many people think that one is for the water inlet and the other is for the outlet. In reality, the suction and inlet of the pump are perpendicular to the lower part of the axis, mainly due to the direction of the impeller.
The advantage of the double-suction pump is that it is less prone to cavitation due to reduced inlet flow, under the same speed and flow.
2. Single suction pump
The single suction pump sucks in horizontally and axially and discharges upwards and radially. It is of a suspended structure. During maintenance, it is not necessary to dismantle the inlet and outlet pipelines, as the rotor components can be removed for maintenance. The pump is connected to the motor through an ordinary or extended elastic coupling, and the shaft seal of the pump is sealed with soft packing. The bearing is a single row radial ball bearing, which is lubricated with oil. When viewed from the motor end, the pump rotates clockwise.
When a single suction pump starts, the shaft drives the impeller to rotate at a high speed, causing the liquid that was pre-filled between the blades to rotate. Under the influence of the centrifugal force, the liquid moves radially from the center of the impeller to the periphery. As the liquid flows through the impeller, it gains energy and its static pressure energy increases, resulting in an increase in flow rate.
When the liquid leaves the impeller and enters the pump casing, it decelerates due to the gradual expansion of the flow channel, converting some of its kinetic energy into static pressure energy before finally flowing into the discharge pipeline in a tangential direction. The volute pump casing not only serves as a component that collects the liquid that flows out of the impeller, but also as a device for energy conversion.
As the liquid is thrown from the center of the impeller to the outside, a low-pressure area is formed in the center. The total potential energy difference between the liquid level of the storage tank and the center of the impeller causes the liquid to be drawn into the center of the impeller. The impeller’s continuous operation results in the continuous intake and discharge of liquid. The mechanical energy gained by the liquid in the centrifugal pump is finally demonstrated as an improvement in static pressure energy.
3. Difference between double suction pump and single suction pump:
- Different Inflow
Single suction pump refers to an impeller that is filled with water at only one end, while double suction pump refers to an impeller that is filled with water at both ends, that is, with two inlets.
- Different Flow
Double suction pump is more suitable for conveying large flows and requires stable operation. When the pump’s flow requirement is very high, a single suction pump should have a large inlet and outlet diameter and a speed that is not too high, and should be stable at around 1450 RPM.
If a double suction pump is used, the size and weight of the pump can be reduced, the rotational speed can be increased, and the volumetric efficiency can be improved.
- Cavitation Resistance
The anti-cavitation ability of a double suction pump is stronger than that of a single suction pump. The symmetrical action of the impeller on both ends of the pump creates a more stable hydraulic balance than a single axial suction pump. Additionally, the flow rate of the medium is low, making the impeller less prone to cavitation.
- Different Price
Double suction pumps are more expensive, with a slightly higher price than single suction pumps. Single suction pumps are less expensive and have a wide range of uses, but double suction pumps are better in many aspects. The specific requirements should be based on the actual operating conditions of the user.


1/4" FNPT Inlet x 3/8" FNPT Outlet with 90° Vent; 2 Stage
This zinc die cast powder coated two-stage regulator is a high pressure regulator combined with a second stage regulator. It reduces cylinder pressure to approximately 10 to 15 PSIG and then during the second stage completes the process by reducing inlet pressure down to 1 inches of water column outlet pressure.
This innovative function results in a consistent inlet pressure to the second stage and downstream appliance.
17.5K BTU; Without Hose; With POL Connector


Hydraulic Piston Power Pack Supplier
- Indirect (roped), direct side or central underground acting piston.
- Telescopic pistons of 2,3 and 4 stages.
- Single phase motor powers rangg from 0.75 to 6 KW.
- 3- phase motor power ranging from 0.75 to 75 KW.
- Home lift power units with tank capacity of 38 to 55 litres of working oil.
- Elevator power units with tank capacity of 95 to 530 litres of working oil.


The second and final phase of the Park Way Sediment Basins Post-Wildfire Flood Mitigation Project has been completed. Officials with the Coconino County Flood Control District says the project now includes three sediment basins with a total capacity of nine acre feet, which is about the same as four-and-a-half Olympic swimming pools. The project is part of ongoing projects in the Spruce Avenue Wash area. The wash was heavily impacted by flood flows from the Museum Fire scar in 2021. For more information on mitigation projects in the Spruce Avenue Wash Flood Corridor log onto museumfloodprojects.com.


These pumps have replaceable wearing parts. Rotors in such types of pumps are outwardly bent with a multi blade design held on shaft by shaft sleeve nuts. These pumps are designed with deep stuffing box for better sealing. These pumps come with sturdy casing, provided with foot, suction and delivery nozzles. Widely used in priming of large pumps, extrusion machines, printing machines and so on.


The BC Hydro and Power Authority (BC Hydro) has solicited bids from the interested parties to supply intake gates for the 47MW Ladore hydroelectric project on the Campbell River in British Columbia, Canada.
The tender, with a December 2, 2013 deadline, also provides an option to supply intake gates for the 67.5MW Strathcona project on the same river.
Under the terms of the tender, the bid winner is required to supply two intake operating gates for the Ladore project and can also supply two intake operating gates for the Strathcona plant.
BC Hydro is currently upgrading Campbell River system featuring three hydropower facilities including the 126MW John Hart plant in the Campbell River region of British Columbia’s Vancouver Island, according to HydroWorld.
Upper Campbell Lake discharges through the 65MW Strathcona plant into Lower Campbell Lake, which is the head-pond for the 47MW Ladore plant, while Ladore discharges into John Hart Lake, which is the reservoir for the 126MW John Hart plant.


Mangaluru: Work on Kulai fishing harbour is expected to begin soon. The project, which is being executed by the New Mangalore Port Trust (NMPT) has already received 5 bids for the construction of the breakwaters as a beginning to the construction of the harbour and the tender is expected to be finalized soon. The entire project is expected to be completed by 3 years and the construction of the breakwater has the deadline of 18 months.
The estimated cost of the project is Rs 196 crore. 50% of the cost of the project is borne by the ministry of shipping, while NMPT and the state government will bear a cost of 45% and 5% respectively. The harbour is being constructed by the port under the Mangalore Harbour Project with the intention to compensate the fishermen from Panambur, who lost out due to the construction of the port.
The project is being taken under the union government’s ambitious Sagar Mala project and a project monitoring committee has been set up for the construction of the harbour at Kulai. The design of the backwater has been approved by the Pune-based Central Water and Power Research Station.
Kulai harbour is expected to house 600 traditional fishing and 450 mechanised boats that presently rely on the congested Bunder harbour. The new harbour will significantly reduce the congestion at the primary harbour. It will also act as a new base for fishermen operating from Boloor and Mulki.


- Flood Warning issued May 25 at 10:47AM CDT until June 03 at 10:00AM CDT by NWS
- Effective: 10:47 a.m. on Thursday, May 25, 2017
- Expires: 10 a.m. on Saturday, June 3, 2017
...The flood warning continues for the following rivers in
Mississippi River at Cape Girardeau and Thebes
.The Mississippi River at Cape Girardeau Missouri will crest at 36.5
feet on Friday morning. Thebes Illinois will crest at 35.5 feet on
Friday evening. Both will remain nearly steady through the Memorial
The Flood Warning continues for
the Mississippi River at Cape Girardeau.
* until Saturday June 03.
* At 10:30 AM Thursday the stage was 36.3 feet.
* Flood Stage is 32.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 36.5 feet by
tomorrow morning. The river will remain nearly steady for the
* Impact...At 38.0 Feet...The flood gate at Broadway closes.
- See more at NOAA


Bhubaneswar: Odisha Chief Minister Naveen Patnaik has sought cooperation from his Jharkhand counterpart Hemant Soren for early completion of Ichha Dam project and flood moderation in Chandil Dam of Subarnarekha Multi-purpose project.
In a letter, Patnaik urged Soren to ensure storage of water up to FRL (full reservoir level) in Chandil Dam in the monsoon season for mitigation of flood in Odisha.
Patnaik said Subarnarekha irrigation project of Odisha will be able to utilise its full irrigation potential only after completion of Ichha dam by the Jharkhand government.
“I am happy to know that the government of Jharkhand has taken up Ichha dam construction work recently. Odisha government will extend all cooperation for Ichha dam construction and reimburse Odisha’s share of the cost of the dam in time,” said the Chief Minister.
A sum of Rs 1026.91 crore has so far been paid to the Jharkhand government for the above works against the estimated share of Rs 1208 crore of Odisha, he added.
Patnaik has further pointed out that while Chandil Dam across river Subarnarekha has been completed since long but water has been stored up to reservoir level (RL) 181.50 m during monsoon against full reservoir level (FRL) of 192 m due to resettlement and rehabilitation (R&R) issues.
As full storage capacity has not been utilised in the dam during monsoon season, Odisha is facing flood havoc more often, he added.


Pusuno´s hyroelectric, of 39,5 MW, is located in Napo provine taking into
advantage the natural forcé of Pusuno river.
The Project has two powerhouses in cascade:
CENTRAL-1 22,7 MW
CENTRAL-2 16,8 MW.
The intake is at 755 msnm, the water restitution level is at
382 msnm and the design flow is 12m3/s
The 90% of the civil work will be constructed on rock, ensuring the geological stability.
ELIT ENERGY have istalled an
automatic flow measuring probas, which collect data every 30 minutes the actual river amount of water.


- Flood Warning issued February 03 at 8:08PM CST until February 05 at 8:00AM CST by NWS
- Effective: 8:08 p.m. on Wednesday, Feb. 3, 2016
- Expires: 8 a.m. on Friday, Feb. 5, 2016
...The Flood Warning continues for the following rivers in
Grand River near Sumner affecting Carroll...Chariton...Linn and
The Flood Warning continues for
The Grand River near Sumner.
* until Friday morning.
* At 7:45 PM Wednesday the stage was 27.8 feet.
* Flood stage is 26.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by
* At 26.0 feet...Rural land adjacent to the river is flooded.
* At 23.0 feet...Bottomland 1 to 2 miles south of the gage begins to
Location FS Stage Day/Time Forecast
Sumner 26 27.8 Wed 08 PM 27.5 early Thursday morning
- See more at NOAA


Please use this identifier to cite or link to this item:
|Title:||Red River Waterway, Lock and Dam no. 4. Report 2, Navigation alignment conditions : hydraulic model investigation|
|Authors:||United States. Army. Corps of Engineers. Vicksburg District.|
Park, Howard E.
Lock and Dam No. 4
Red River Waterway
Red River, Louisiana
|Publisher:||Hydraulics Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Technical report (U.S. Army Engineer Waterways Experiment Station) ; HL-90-2 rept. 2.|
Abstract: Lock and Dam No.4 is the fourth lock in a series of five to be constructed on the Red River Waterway from the vicinity of Old River to Shreveport, LA. Lock 4 is located in a cutoff canal on the left descending bank about 169 postproject river miles above the mouth of the Red River. The principal structures include an 84- by 785-ft lock, a gated spillway containing five tainter gates, and a hinged crest gate 100 ft wide. The fixed-bed model reproduced about 3.5 miles of realigned river channel and adjacent overbank area at an undistorted model scale of 1:100. The model investigation was concerned with determining the effects on navigation through the study reach for the proposed design and developing modifications required to the design that would provide satisfactory navigation conditions.
|Appears in Collections:||Technical Report|


Samanala wewa reservoir
The Samanala Dam (Sinhala: සමනලවැව වේල්ල) is a dam primarily used for hydroelectric power generation in Sri Lanka. Commissioned in 1992, the Samanalawewa Project (Samanala Reservoir Project) is the third-largest hydroelectric scheme in the country, producing 405 GWh of energy annually. It was built with financial support from Japan and the United Kingdom. It is notable for a large leak on its right bank. Power production continues as planned despite the leakage, and the water from the leak now provides two thirds of the water issued by the reservoir for agriculture in downstream areas.
The Samanala Dam is located in the Uda Walawe basin. It was built at the confluence of the Walawe river and the Belihul Oya, a location 400 metres (1,300 ft) above mean sea level. It is near the town of Balangoda and 160 kilometres (99 mi) southeast of Colombo, the capital. The ground of the project area is karstic.
Background and development
With the Mahaweli and Laxapana hydroelectric power projects implemented, the demand for electricity in Sri Lanka rapidly increased. When it became clear that it would not be possible to meet the demand with coal-fired power plants, the government of Sri Lanka decided to initiate another hydroelectric power project. A reservoir type hydroelectric power plant was planned to be constructed across the Walawe river, which would address the shortage of electricity in the country. Detailed investigations for a hydroelectric power plant in this area have been carried out since 1958, but the scheme was initiated only in 1986. The financing for the project was given by the governments of Japan and the United Kingdom.
Sir Alexander Gibb & Partners did the design work and Balfour Beatty were the contracts to lay roads, drive a tunnel and build the power station.
The cost of the project was estimated to be 60,176 million yen, but with the remedial measures taken to control the leak, the cost increased to 74,313 million yen. The Samanalawewa power plant was commissioned in 1992. The Samanalawewa project is the second largest hydroelectric scheme in Sri Lanka after the Mahaweli project.
Dam, reservoir and the power station
The Samanala Dam is 110 metres (360 ft) in height and has a length of 530 metres (1,740 ft) at crest level. The volume of the dam is about 4,500,000 cubic metres (160,000,000 cu ft). Rainfall in the area has an annual average of 2,867 millimetres (112.9 in), and the catchment area is 372 square kilometres (144 sq mi). The dam is of rock fill, central earth core type. The spillway of the dam has three gates, each 14 metres (46 ft) high and 11 metres (36 ft) wide. It can discharge water at a rate of 3,600 cubic metres (130,000 cu ft) per second. Its tunnel is 4.5 metres (15 ft) in diameter and 5,159 metres (16,926 ft) in length.
The reservoir created by the dam has a total live storage capacity of 218,000,000 cubic metres (7.7×109 cu ft). Its gross storage capacity is 278,000,000 cubic metres (9.8×109 cu ft), of which 60,000,000 cubic metres (2.1×109 cu ft) is dead storage. The reservoir's full supply level is 460 metres (1,510 ft) above main sea level, and the reservoir spreads 8 kilometres (5.0 mi) upstream at this level. The reservoir is u-shaped. It covers an area of 897 ha. However, with the water leakage the water level was reduced to 430 metres (1,410 ft). It is one of the largest reservoirs in Sri Lanka.
The power house contains two Francis turbines, each with a capacity of 62 MW, and generates 405 GWh of energy annually. The powerplant is managed by the Ceylon Electricity Board.
A permeable area of ground was found during the construction of the dam in 1988. Curtain grouting was used in an effort to remedy this. However, as the reservoir was being filled, a large leak occurred on the side of the right bank, about 300 metres (980 ft) downstream from the dam, causing a landslip. Subsequent measures taken to control the leakage were largely ineffective. The leakage of approximately 2,100 litres (460 imp gal) per second continues, but has not affected power production at the plant, which has been in full operation since its commissioning in 1992.
The leak is constantly monitored. If the leak remains stable and does not increase further, it does not pose a threat to the sustainability of the project. The karstic ground has created complex geological conditions, and as a result the exact mechanism of the leak cannot be established, so remedial measures have been unsuccessful.
The project was planned as a single purpose hydropower project. Therefore, the effects on the agriculture and the environment of the area were taken into consideration very little during the development. Although an irrigational release valve (IRV) is there in the dam to supply water to the farmlands in the downstream areas, the yield and cultivable acreage has declined since the Samanalawewa project was commissioned.
However, the necessity to constantly release water for agriculture in the downstream areas was reduced due to the leak. Of the water released from the Samanala Dam for agriculture in the downstream areas, two-thirds is from the leak and only one-third has to be supplied via the IRV.


WAPDA – Tank Zam Dam – Khyber Pakhtunkhwa - Project Profile
"WAPDA – Tank Zam Dam – Khyber Pakhtunkhwa - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.
The "WAPDA – Tank Zam Dam – Khyber Pakhtunkhwa - Project Profile" is part of Timetric's database of 82,000+ construction projects. Our database includes a 10+ year archive of completed projects, full coverage of all global projects with a value greater than $25 million and key contact details for project managers, owners, consultants, contractors and bidders.
The Water and Power Development Authority (WAPDA) is planning to undertake the development of a dam in Khyber Pakhtunkhwa, Pakistan.
The project involves the construction of an 89m high earth and rock fill dam with a 25.5MW hydroelectric power plant. It will be developed in two power houses.
The work will include the construction of two powerhouses, first power house at Khirji with 10.5MW and the second at Manzai with 15MW, with total 25.5MW capacity.
It also includes the construction of a 10km power tunnel, a 115km canal, two tail race tunnels of length 792m and 183m, the installation of turbines, generators, transformers and power control units; and the laying of transmission lines.
Electra Consultants has been appointed as study consultant.
In 1988, feasibility studies were completed for the project.
Construction will commence after the preparation and approval of Revised PC-I (project cost), which has been submitted to the Ministry of Water Resources, and later to be submitted to the Ministry of Planning and Development.
The project involves the construction of an 89m high earth and Rock fill dam with a 25.5MW hydroelectric power plant on Tank Zam River near Hinis Tangi in Khyber Pakhtunkhwa, Pakistan.
The US$135 million project includes the following:
1. Construction of a 10.5MW powerhouse at Khirji
2. Construction of a 15MW powerhouse at Manzai
3. Construction of a substation
4. Construction of a 115km canal
5. Construction of a 10km power tunnel
6. Construction of two tailrace tunnels of length 792m and 183m
7. Construction access roads
8. Installation of turbines
9. Installation of generators and transformers
10. Laying of transmission linesReasons To Buy
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EnBW – Atdorf Pumped Storage Power Plant 1400 MW – Baden-Württemberg - Project Profile
"EnBW – Atdorf Pumped Storage Power Plant 1400 MW – Baden-Württemberg - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.
The "EnBW – Atdorf Pumped Storage Power Plant 1400 MW – Baden-Württemberg - Project Profile" is part of Timetric's database of 82,000+ construction projects. Our database includes a 10+ year archive of completed projects, full coverage of all global projects with a value greater than $25 million and key contact details for project managers, owners, consultants, contractors and bidders.
EnBW Kraftwerke AG is planning to undertake the construction of the Atdorf pumped storage power plant with a capacity of 1,400 MW in Bad Säckingen, Baden-Württemberg, Germany.
The project involves the construction of a reservoir 2,625m long and with a height of 75m, an 8km long tunnel with a diameter of 9.5m, two pools with a storage capacity of 9 million cubic meters each, a 25km long underground structure, powerhouses, substations and the installation of transformers and generators.
RWE Power AG signed an agreement on the withdrawal from the joint-venture in the second quarter of 2014.
EnBW Kraftwerke AG will continue the project and is in the process of obtaining initial planning approvals.
On January 9, 2017, public consultation activities will be commenced, and the planning approval is expected in early 2018.
The construction work is delayed due to zoning procedure.
The construction work is scheduled to commence in the first quarter of 2020 and the power plant will be completed by 2023.
The project involves the construction of a pumped storage power plant with a capacity of 1,400MW in the canton of Uri, Switzerland.
The US$2,223 million project includes the following:
1. Construction of a reservoir with 2,625m long and 75m height
2. Construction of a 8km long tunnel with a diameter of 9.5m
3. Construction of two pools with storage capacity of 9 million cubic meter each
4. Construction of a 25km long underground structure
5. Construction of power houses
6. Construction of substations
7. Installation of transformers and generators
Reasons To Buy
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Batoka Gorge hydropower station is a 2.4GW run-of-the river hydroelectric project planned to be developed on the Zambezi River, which flows across the boundaries of Zambia and Zimbabwe.
It will be located 54km downstream of the Victoria Falls, one of the biggest waterfalls in the world.
Officially known as the Batoka Gorge Hydro Electricity Scheme (BHES), the hydropower project will be developed by the Zambezi River Authority (ZRA), which is jointly owned by the governments of Zambia and Zimbabwe.
Both countries entered a memorandum of understanding (MoU) for the development of the project in February 2012. The African Development Bank (AfDB) Group was named as the lead financier and co-ordinator for the $5.2bn project in April 2017.
Construction activities on the project are expected to be started after reaching financial closure in 2019, while commissioning is expected after 2024.
The bi-national project is expected to create approximately 6,000 employment opportunities.
Batoka Gorge hydropower facility design
The Batoka Gorge hydroelectric facility will comprise a roller compacted concrete (RCC) gravity arch dam measuring 720m-long and 181m-tall, and two 1,200MW surface power houses on both sides of the Zambezi River.
Each power house of the facility will be installed with six 200MW hydroelectric turbines.
The catchment area of the reservoir will be 508,000km², while four intakes will be built to send water to both the power plants through 4km-long tunnels.
A crest type spillway with 12 radial gates will be constructed to ensure controlled release of flow from the reservoir. Measuring 13m-tall and 14m-wide, the spillway’s design discharge capacity will be 20,000m³/s.
Batoka Gorge power transmission
The cross-border hydroelectric project is expected to generate 10,215GWh of electricity a year, which will be shared between Zambia and Zimbabwe.
The electricity generated at the Batoka Gorge hydroelectric facility will be evacuated through four proposed overhead transmission lines to Zambia and Zimbabwe. Electricity transmission to Zambia will be done through two 330kV lines, while that to Zimbabwe will be through two 400kV transmission lines.
A 55km-long, 330kV double-circuit transmission will connect the north bank power plant of the Batoka Gorge facility with the new Mukuni substation of Zambia Electricity Supply Company (ZESCO) at Livingstone.
The other transmission line for Zambia will be a 170km-long single-circuit 330kV line connecting the plant with the Muzuma substation in Choma.
Zimbabwe will receive electricity from the Batoka south bank power plant through a 70km-long 400kV single-circuit transmission line connecting the Hwange substation and a 400km-long double-circuit transmission line connecting the Chakari substation.
Key players involved
ZRA shortlisted three bidders for the development of the Batoka Gorge hydropower station on build-operate-transfer (BOT) basis in February 2019.
The shortlisted organisations include a consortium of China Power and General Electric (GE), a joint venture of China Three Gorges Corporation, China International and Water Electric Corporation and China Gezhouba Group Company, and Salini Impregilo of Italy.
The final development contract for the project is expected to be awarded by the end of 2019.
Studio Pietrangeli was previously engaged by ZRA to carry out the engineering feasibility studies for the implementation of the project.
Environmental Resources Management Southern Africa (ERM) offered environmental and social impact assessment (ESIA) services for the BHES project.
Ernst & Young Advisory Services, in consortium with Tata Consulting Engineers and Webber Wentzel, was appointed to provide financial and legal advisory services for the project.
Funding for Batoka Gorge hydropower station
The funding required for the economic feasibility studies of the project was provided by the World Bank.
ZRA allocated funds for the engineering feasibility and ESIA studies for the transmission lines of the Bakota Gorge hydropower station in March 2019.


Tommeheton Creek Dam is an earth dam built on the Tommehton Creek River and is located in Virginia. It was built for the purpose of irrigation.
|Dam height||26 feet|
|Structural height||26 feet|
|Hydraulic height||26 feet|
|Max storage||238 acre feet|
|Normal storage||100 acre feet|
Maximum storage is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage.
|NID ID (National ID)||VA135008|


Generating capacity is 603 megawatts with an overload capacity. Dam system Ice Harbor Dam is part of the Columbia River Basin system. The Lake stretches to the base of Lower, Monumental Dam. The Wallula Channel formed from the backup of Snake River. The Snake River is the principal tributary, the Columbia River. The Lower Snake River Project features four locks, dams. The project including recreational facilities, maintains four habitat management areas developed four recreation areas. The work includes structural modifications, the turbine Draft tube exits. Spillway weir was installed to improve passage conditions for juvenile salmon in 2005. Modifications included a lamprey fish ladder Entrance weir, lamprey passage structures. Ice Harbor recreation areas hosted than more 345,000 visits.
Located northeast of the town, Part of the Columbia River Basin system


- Flow: 1/480 mc/h
- Head: 3/95 m
- Power: 0.25/75 kW
- Close-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 30 kW, new bracket construction for standard motors (stub-shaft
- construction) from 37 to 75 kW with integrated thrust bearing.
- Pump casing with axial suction and radial delivery on top, main dimensions and performance according to EN 733
- NM: Version with pump casing and lanter bracket in cast iron.
- B-NM: Version with pump casing and lanter bracket/casing cover in bronze (the pumps are supplied fully painted).


Check Valve, Watkins, Flow Control
Manufacturer part number:
Flow control check valve used on Hot Spring and Tiger Rivers with fountains. Check valve helps keep consitant flow to fountain whether pump is on or off.
1-1/2" S x 1-1/2" S


Elermore Vale - Stewart Park stormwater improvements
Council is undertaking work to improve stormwater surface flows in the Stewart Park (Croudace Road), Elermore Vale area.
The work involves the relocation of underground utilities (gas, electrical and water), regrading grass verge areas and constructing a new stormwater pit and drainage culvert. The culvert and stormwater pit, combined with the regrading, will assist in capturing more surface water and improving stormwater management.
The project will be completed in two stages:
Works will commence in first half of 2019, once electrical relocation works have been completed.
- Stage one will involve gas and water main adjustments, verge regrading and construction of approximately half of the culvert length.
- Stage two will follow with the adjustment of the electrical main and the final portion of drainage.


This article will help you diagnose and troubleshoot your Nutritower pump.
here are some easy steps to follow:
1) Check the water level to make sure it is at least 2 inches above the pump
2) Check water tube length - The pump should be sitting flush at the bottom of the reservoir.
3) Unplug the pump from the timer and plug it in directly to the socket and check for noise
4) If there is no motor sound at all, replace the pump - it is burnt out or defective
5) Check flow rate valve at the front of the pump is at max
6) Clean the pump and remove any residue or algae accumulated
7) If the pump motor is running, unplug the pump and remove the cover to expose the impeller casing
8) remove the impeller facing and the impeller
9) Inspect the impeller - if it's broken, replace the impeller reassemble, and check the flow again.
10) If the impeller is intact, replace the impeller and cover and detach the main water line.
11) Place the pump on its side in the reservoir and plug the pump back in. if water pressure is good from the pump, try holding the pump submerged and placing the water line loosely back on the pump repetitively to flush water up and down the tube.
12) Replace water line temporary and observe if any flow
13) Blow in the tubes where no water is coming out and repeat the flush process
If there is no improvement, please follow the procedure to inspect the manifold found here.


Shawan (Yalong) is a 280MW hydro power project. It is located on Yalong river/basin in Sichuan, China. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. Buy the profile here.
The project is currently owned by China General Nuclear Power with a stake of 50%.
The project generated 1,500 GWh of electricity.
The hydro power project consists of 4 turbines, each with 70MW nameplate capacity.
NPO ELSIB supplied electric generator(s) for the project.
For more details on Shawan (Yalong), buy the profile here.


The pressure in a fluid is measured in two different systems.
1. In the first system, it is measured above the absolute zero or zero vacuum which is termed as Absolute pressure.
2. In the second system, Pressure is measured above the atmospheric pressure, it is known as Gauge Pressure.
Mathematically, it can be represented as:
Absolute Pressure = Atmospheric pressure + Gauge Pressure
Therefore, Gauge Pressure = Absolute Pressure - Atmospheric pressure


ped-lock High Pressure Flow Control Valves also known as High Pressure Speed Control Valve are designed as per German technology to permit a simple and accurate control of hydraulic fluid, with increasing number of turning of the control knob, starting from the closed position the flow increases evenly. The last turning of Knob of Flow (Speed) Control Valve results in a complete opening of the flow passage. The flow in the reverse direction is free.
This series of high pressure valves offer full port 700bars rated valves in sizes up to 2" and are suitable for steam, hydraulics, oil and gas media and all high pressure fluid applications. This series valves are used quite extensively in areas requiring a full port high pressure rated valve in large sizes.
Full passage for unrestricted flow of medium
Floating ball provides positive seal
Valve positioning controlled by a stop pin and limit washer


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Wayne Water Ace 1/3 HP Cast Iron Submersible Sump Pump R3S
This Water Ace 1/3 HP Cast Iron Submersible Sump Pump R3S is ideal for basements needing frequent water drainage. It has an efficient motor with thermal overload protection. 115 volt oil-filled motor for superior heat dissipation. Rugged cast iron housing with corrosion-resistant cover and base. High performance with lifts to 24'. Maximum flow of 30 GPM at 10' lift.


Device for Dry Run Protection in Applications with LORENTZ Solar Surface Pump Systems. The device can be used to detect the water level in the suction side of the pipeline. When the two electrodes run dry, the LORENTZ Controller will stop the pump and indicate Source Low LED.
• Reliable dry run protection
• Trouble free operation
• Max. operating temperature 70 °C
• Enclosure class: IP54


Smoothing inlet for rainwater tank
The smoothing inlet is an all stainless steel device that fits on the 4" inlet pipe in the storage tank. It is used to prevent the agitation of sediment at the rainwater inlet into the storage tank. The smoothing inlet also helps aerate the water as it enters the tank.
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Project Manager: Chuck Taylor
Status: Planning and Design
Schedule: 2021-22 Construction
The Ruby Way project falls within the Bijou Park Drainage which is part of the East Pioneer Trail Watershed. The upper part of the project area is steep with minimal storm drain infrastructure. Runoff from larger storm events bypasses the existing inlets in the Wildwood Avenue and Overlook Court area as is evidenced by channels cutting across properties. The project boundaries are shown on attached project location map.
- The primary objectives of this project are as follows:
- Replace and upgrade the existing drainage infrastructure;
- Stabilize steep, eroding road shoulders and drainage channels;
- Collect sediment in maintainable drainage structures;
- Treat stormwater by detaining runoff in underground infiltration galleries and detention
The draft design includes the routing of stormwater to proposed basins and infiltration systems located on David Lane and California Tahoe Conservancy (CTC) parcels along the old Ruby Way right-of-way area on the north side of Wildwood Avenue.
Project Vicinity/Location Map (PDF)
Ruby Way-Overlook Ct Drainage and Erosion Control Project Draft Design Plans (PDF)
Initial Study/Negative Declaration environmental document Draft (PDF)


The Barrel Dumper is designed with a floor level barrel plate for easy loading. Lift cylinders gently lift/tilt the barrel for an easy discharge of product from the barel. Stainless steel construction allows for washdown.
• Heavy-duty stainless steel construction for safety and durability
• Hydraulic or pneumatic lift cylinders
• Hydraulic power units available (optional)


Following copious inflows into the Kadem project in adjoining Adilabad district due to incessant rains since the last few days, the Sripada Yellampalli project in Ramagundam started receiving inflows on Sunday.
The Kadem project was filled to its brim forcing the irrigation authorities to lift one crest gate to release 6,259 cusecs of water into the river Godavari on Sunday evening. The SYP started receiving inflows of 2,533 cusecs on Sunday evening and it was likely to be increased by late night following the opening of flood gate at Kadem project.
The water level at SYP is at 141.32 metres against the full capacity of 148 metres. The project is presently having 6.5027 TMC of water against full storage of 20.175 TMC. The officials are confident that the inflows into the SYP would increase steadily.
Irrigation officials stated that a discharge of about 2.57 lakh cusecs flood was recorded at Kaleshwaram on Sunday. At Annaram, located in the upper reaches of Godavari above Kaleshwaram, the discharge was recorded at over 4,200 cusecs on Sunday evening.
Source: Read Full Article


High Banks & Hydraulic Canal
First Hydraulic Canal Over High Bluffs 1857
1875 Hydraulic Canal Basin
At the bottom of the gorge is the 1881 Schoellkopf Niagara Falls Hydraulic Power & Manufacturing Company.
The power plant expanded.
The Aluminum Company of America builds on High Banks c, 1898.
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POWER STATION, Tauernmoos, Austria
The Tauernmoossee reservoir in the Hohe Tauern National Park has been used by ÖBB (Austrian Federal Railways) for power generation since 1929 together with the Enzingerboden power station and is now being modernised from the ground up. The new pumped storage power plant aims to utilise the existing Weißsee pre-storage reservoir as a storage basin for the flexible coverage of energy demand. SWIETELSKY tunnel construction is responsible for the implementation of this major project: more than ten kilometres of tunnels are being bored through the rock. The underground pressure tunnel between Weißsee and Tauernmoossee will be 1.6 kilometres in length, partly steel-armoured: eighty cubic metres of water per second will be carried to the actual heart of the system, a power plant hidden in a cavern. Completion is scheduled in 2025.


Zambia Mkushi-Serenje Districts
Mulembo Lelya Hydro Electric Power
2018 - in progress
Description for Mulembo-Lelya Hydropower (Zambia)
Mulembo-Lelya is a hydropower project located between the Central and Eastern provinces of Zambia, on the homonymous rivers. The hydroelectric scheme is conceived to exploit the potential of two rivers, Mulembo and Lelya, while they run close before converging.
The project basically includes three main components: an upstream dam on the Mulembo river for the regulation of the flows, a water transfer scheme from Lelya to Mulembo rivers and a downstream hydropower plant on the Mulembo river.
The scope of the project is to improve the supply to the transmission grid managed by ZESCO in the region, contributing to the socio-economic development through a reliable source of power.
Studio Pietrangeli will be responsible for the feasibility study with the development of the full BFS (Bankable Feasibility Study) that will allow both investors and contractors to develop the project.
For this study Studio Pietrangeli will use cutting edge engineering technologies (such as Laser Scanning, Geophysical tomography, drones survey, etc.) in order to fully exploit the hydropower potential of the rivers.
- Dam ( Rockfill, H = 50 m, L = 170 m )
- Hydraulic Tunnel ( L = 3.4 km, D = 3 m )
- Canal ( L = 1.2 km, W = 3 m )
- Canal ( L = 13.8, W = 4 m )
- Penstock ( L = 3.2 km, D = 3.5 m )
- Power House ( Outdoor, IP= 167 MW, No. 1 Pelton )
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Gibe II is the second stage of the Gibe-Omo hydroelectric cascade which...
High Voltage Transmission System (GABON-CONGO)
The assignment, financed by European Union...
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This project foresees the rehabilitation for the...
Acerenza Dam (Italy)
Water storage plant for irrigation purposes with a reservoir capacity of 42...
Kikonge Multi-Purpose Project (Tanzania)
Kikonge is a multipurpose project foreseen for...


02 Sep Work on Dh. Hulhudheli Harbour is well underway
Work on Dh. Hulhudheli Harbour is well underway, with overall 20% project progress. Dredging of the new harbour basin for the project is currently ongoing, with 26% completion.
The Dh. Hulhudheli Harbour project consists of dredging and excavation operations of 45,585cbm; construction of a 277m breakwater; a 60m revetment; a 432m quay wall; 2,160sqm of paved area and installation of streetlights. The estimated value of the project is MVR 39.8 million. The project was mobilized on 25th June 2020.


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Double Disc Check Valve
The SSVC Double Disc Check Valves are non-slam wafer check connection type, making the valve as efficient, lightweight, compact, low cost operation fluid control device. With independent springs design, it improves the application with reliability and longer valve life.


FG to spend $5.8bn on Mambilla hydropower project
By Ikenna Omeje
The Federal Government has said that the 40-year-old Mambilla Hydroelectric Power project is estimated to cost $5.8bn.
This was contained in a document recently obtained by Daily Sun. Part of the document reads: “The project is estimated to cost $5.8 billion and will generate up to 50,000 local jobs during the construction phase.”
Mambilla hydropower project is a 3.050MW hydroelectric facility being developed on the Dongo River near Baruf, in Kakara Village of Taraba State.
The project which is being undertaken by Nigeria’s Federal Ministry of Power, with the help of Chinese investments, is expected to commence operation in 2030.
Mambilla will be Nigeria’s biggest power plant, producing approximately 4.7 billion kWh of electricity a year.
Although Mambilla hydroelectric project was originally conceived in 1972, it could advance only after 35 years when China’s Gezhouba Group awarded a contract to develop the project with 2,600MW installed capacity in 2007.
The ground survey for the project was completed in August 2010 and environmental approval was received in December 2011.
Thecapacity of the project was increased to 3,050MW in 2012. The project was, however, put on hold due to administrative clashes, until it received government approval in 2016.
The Federal Ministry of Power, Works and Housing awarded the project development contract to a consortium of three Chinese companies including the Gezhouba Group, in November 2017.
The hydroelectric facility will comprise four dams and two underground powerhouses having 12 turbine generator units in total.
The four dams to be constructed on the Dongo River for the Mambilla hydropower project include Nya (formerly known as Gembu), Sumsum, Nghu and Api Weir dams.
Nyaand Sumsum will be 100m and 35m-tall roller compacted concrete (RCC) dams with crest length of 515m and 460m, respectively.
Nghu will be a 95m-high rockfill dam with a crest length of 650m, while Api Weir will be a small regulatory dam to raise the water level of the river.
Nya and Sumsum dams will be connected through a 16km-long, 6m-diameter tunnel, whereas Sumsum and Nghu dams will be connected by a 1.5km-long and 10m-wide canal.
The headrace canal for the plant will be 3.1km-long and 15m-wide.
Each underground power house of the plant will measure 175mx27mx38m and house six 250MW Pellton turbine units operating at a total dynamic head of 1,007m.The diameter of the power shafts connecting each turbine will range between 5.25m and 8.40m.
Two 6km-long tailrace tunnels for the plant will be of 8m diameter each, while the tailrace canal will be 3km-long and 25m-wide.
Chinese Export Import (Exim) Bank is funding 85 percent of the estimated $5.8bn project cost, while the remaining 15 percent funding will come from the Federal Government.
Early this year, the Ministry of Power stated that no less than N700 million has been spent to carry out survey work at the site of the project.


Fort McMurray, AB
Syncrude Canada Ltd.
The Base Mine Dam project included construction of an earth dam and sand chimney, manholes, pipeline corridors, haul and access roads, Highway 63 and Underpass Relocation, surface water management system, sumps and the associated mechanical, electrical and automation.
Total Excavation: 2,344,370 m3
Total Common Fill: 9,051,958 m3
Total Sand Fill: 618,758 m3
Total Granular Fill: 261,456 m3


- Flood Warning issued July 21 at 8:49PM CDT until July 23 at 5:30AM CDT by NWS
- Effective: 8:49 p.m. on Tuesday, July 21, 2015
- Expires: 5:30 a.m. on Thursday, July 23, 2015
...The Flood Warning is cancelled for the following rivers in
Missouri River at Napoleon affecting Jackson...Lafayette and Ray
...The Flood Warning continues for the following rivers in
Grand River near Sumner affecting Livingston...Carroll...Chariton
and Linn Counties.
Grand River near Brunswick affecting Carroll and Chariton
Missouri River at Waverly affecting Carroll...Lafayette and Saline
Missouri River At Miami affecting Carroll...Chariton and Saline
Missouri River at Glasgow affecting Chariton...Howard and Saline
Missouri River at Boonville affecting Cooper and Howard
Platte River At Sharps Station affecting Platte
Platte River near Platte City affecting Platte
The Flood Warning continues for
The Missouri River at Waverly.
* until late Wednesday night.
* At 8:30 PM Tuesday the stage was 20.5 feet.
* Flood stage is 20.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by
Location FS Stage Day/Time Forecast
Waverly 20 20.5 Tue 08 PM 20.3 early Wednesday
- See more at NOAA


Critical Diversion System of Dasu HPP to be completed in May 2023
Chinese official briefing Chairman WAPDA on Dasu HPP progress.
KOHISTAN,Jan.4(Gwadar Pro) - The “critical diversion system” of Dasu Hydropower Project (DHPP) will be completed by May 2023, as the China Gezhouba Group Company (CGGC), contractor of the main work, is leading the construction work of the project.
Project management briefed Chairman WAPDA Lt Gen Sajjad Ghani (Retd) on Tuesday during his visit to DHPP, which is being constructed on the River Indus upstream of Dasu town in the Upper Kohistan district of Khyber Pakhtunkhwa (KP). The construction work is continuing simultaneously on 12 different sites of the project, the official was informed, adding, “the critical diversion system will be completed in May 2023 while electricity generation from the project will commence by the end of 2026”.
The Chairman visited various sites of the project including diversion tunnels, the Stater dam area, and the project colony. During his visit to the project colony, the Chairman inaugurated the newly constructed office building of the project. China’s CGICOP is executing the Project Colony and & Infrastructure package of the project.
As per the detail of the project, CGGC is executing the construction RCC Dam and Allied Hydraulic Structures of the project; the construction of the underground Powerhouse and Allied Hydraulic Structures; the Right Bank Access Road from the Dam site to Uttergah; the relocation of Karakoram Highway RD 25+200 to RD 62+213.
China Civil Engineering Construction Corporation (CCECC) is working on different parts of the construction of the Right Bank Access Road. Similarly, the construction of a 132 kV transmission line from Dubair to Dasu is being carried out by Power Construction Corporation of China Ltd. (PCCC). Zhongmei Engineering Group Ltd. is working at the resettlement site of the project.
It is apt to mention that upon completion, Dasu will become the project with the highest annual energy generation in Pakistan i.e., 21 billion units on average. WAPDA is spending Rs 17.34 billion on schemes relating to resettlement, environmental management, and social development in the project area. About 3722 jobs, including 1945 for locals, have so far been created, which will increase to the 8000 mark during the peak construction period of the project.


Utica East Ohio Midstream LNG Plant – Double-Wall Fiberglass Sumps
Utica East Ohio Midstream needed two new pump stations to handle low flows of stormwater runoff at its new Kensington Plant in Ohio. To responsibly contain potentially hazardous stormwater from the topsoil, these pump stations were designed with double-wall fiberglass wet wells with interstitial leak detection. Both pumping systems included corrosion resistant components and sensors due to the potential presences of LNGs in the stormwater runoff. Pumps were engineered with 7.5 hp Ebara pumps in a duplex configuration, and different impellers were specified for each of the two pump stations meet slightly differing head requirements.
What Romtec Utilities Provided
- Lift Station Design & Engineering
- Package Lift Station Supplier
- Package Lift Station Manufacturer
- On-Site Lift Station Construction Adviser
- On-Site Start-Up Management
Why They Chose Romtec Utilities
URS Corporation, the project engineer, contacted Romtec Utilities for the design of three pump stations, including these two pump stations with nearly identical designs. URS provided Romtec Utilities with the design criteria and requirements for double-wall fiberglass wet wells, corrosion resistant components, and value engineering services. Romtec Utilities worked to design these pump stations to meet the URS requirements while satisfying the budget of Utica East Ohio Midstream, the end owner and customer. When the designs were completed, Romtec Utilities manufactured the pump station packages and delivered them to the plant construction site in Ohio where Fagen, Inc. installed all three pump stations.


Temperatures：T-50 ℃ ～450 ℃
Single or two-stage, radially split, supported at both ends, horizontal, centerline installation, rigid shaft design for heavy workstations. The first stage impeller can adopt double suction impeller to reduce pump NPSHr, pump body double volute structure, radial force balance; API standard sealing cavity, suitable for various sealing flushing schemes. The pump inlet and outlet are vertically upwards.
Clean or polluted, low temperature or high temperature, chemically neutral or corrosive liquids, refinery, petrochemical, chemical, coal chemical, power station, thermal power plant, offshore platform, pipeline and pressurization, etc.


Special design for corridor or nallow and long room
Available for room with 3.5m floor height
Built-in drain pump, drain height can be 1200mm
Built-in with long life drainage pump, Pumping head is 1200mm,flexible for drainage pipe design.
Cooling capacity range:
Ultimate: Cooling capacity: 2.8 ~ 14 kW
Heating capacity: 3.2~ 16kW


River condition forecast on 2015-04-17
River conditions forecasts posted on 2015-04-17 by Ottawa River Regulation Planning Board
Most reservoirs throughout the watershed are low and will be filling gradually. Water levels and flows on the main stem of the Ottawa River will rise this coming week as inflows in the northern and central part of the basin are expected to increase due to warm temperatures and forecast rainfall.
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Prestbury Flood Aleviation Scheme
Working for Birse Civils, we completed a Flood Alleviation Scheme for the E.A at Prestbury. The Scheme involved the construction of 400linm of large diameter culvert including 7 reinforced concrete headwall structures and 2 large inlet structures. Other works include 400linm of open cut channel and outfall structures.
We created a digital terrain model for the channel, and completed the excavation and reinstatement works using our GPS controlled excavators.


Grant: ENERGY & ENVIRONMENTAL PROTECTION, CONNECTICUT DEPARTMENT OF
ENERGY & ENVIRONMENTAL PROTECTION, CONNECTICUT DEPARTMENT OF
CDFA Program Title
Habitat Conservation Grant. Stimulus funding will be used for the construction of a bypass channel around the Tingue Dam as part of an initiative to restore fish passage in the Naugatuck River watershed.


The power plant Mor-2 is located on the river Kürtün in the province of Trabzon, Gümüshane was in operation when enso acquired Mor Elektrik Üretim A.S.. Mor has a catchment area of 113 km². A 5,6 km long canal serves as the hour storage during the low-water periods. The net head of approx. 150 m with a design flow of 5,05 m³/s results in a total installed capacity of 6,8 MW. The expected average annual production is 21,38 GWh.


The independent electricity system of Azerbaijan was established in the 1970s.
In 1970, in the territory of the Nakhchivan Autonomous Republic, the Araz Water Junction and two hydroelectric power stations, each with a capacity of 22 MW, were built and put into operation on the Araz River.
In 1971-1972, the Sumgayit Thermal Power Station No. 2 was expanded and two new turbine units with a total capacity of 110 MW were put into operation. In 1973-1974, the installation of two turbine units, each with a capacity of 50 MW, was completed at Thermal Power Station No. 1.
In 1976-1977, the Tartar Water Junction and Tartar Hydroelectric Power Station, with a capacity of 22 MW, were put into operation on the Tartar River.
At the end of the 1970s, the total capacity of existing power plants had reached 2,882.4 MW, with 15.4 billion kWh of electricity being generated.
However, Azerbaijan was forced to import $2.9-3.5 billion kWh annually from neighbouring countries to meet its growing electricity demand. As a result, it was decided to build Shamkir Hydroelectric Power Plant and Azerbaijan State District Power Station. The construction of Shamkir Hydroelectric Power Plant, with a capacity of 380 MW, was completed in 1981-1982 and then put into operation. The construction of Azerbaijan State District Power Station began in 1974. The first power unit with a capacity of 300 MW was put into operation in 1981 and the last, the eighth one with the same capacity, in 1989. Currently, the capacity of the station is 2,400 MW. After these additions, the capacity of the energy system reached 5,000 MW.
In addition to the commissioning of power plants, power line systems and substations were also constructed.
In 1972, the capacity of Sumgayit Thermal Power Station No. 2 reached 220 MW.
In 1976-1977, Sarsang Reservoir and Sarsang Hydroelectric Power Station, with a capacity of 50 MW, were put into operation on the Tartar River to improve agriculture, to create a reservoir for the irrigation of fertile soils, to improve the electric power supply of the region and to reduce losses in energy transmission in Karabakh.
In the 1980s, all settlements in Azerbaijan gained electricity supply. During this period, along with the construction of power plants, the power grid was also systematically developed and a stable power system was created in the country.
In 1968-1971, Ali-Bayramli State District Power Station-Agdam-Ganja-Agstafa, with a capacity of 330 kV, Ali-Bayramli State District Power Station-Yashma Derbent high voltage power lines, and the substations Yashma, Ganja and Agstafa with respective capacities of 330, 110 and 20 kV were built and put into operation.
Construction of the Azerbaijan Thermal Power Station created a new stage in the development of the energy network of the country. The first and second Absheron Electric Transmission Line with a capacity of 500 kV, Muxranis-Vali Electric Transmission Line and the fourth and fifth Mingachevir Electric Transmission Lines were built.
In the 1980s, the Absheron substation, with the capacity of 500, 330 and 220 kV, Imishli substation with 330, 110 and 10 kV capacities and substations at Hovsan, Nizami, Mushfiq, Sangachal, Masalli, Agsu and Babek, all with capacities of 220, 110 and 10 kV were commissioned. In addition, the third Ali-Bayramli Electric Transmission Line, with a capacity of 330 kV, was put into operation.


Mathematical modeling of control system for the experimental steam generator
EPJ Web of Conferences
The methodology of creation of automatic control system (ACS) of water level in the steam generator is developed. The mathematical model of checking its working capacity is developed, which allows establishing the maximum deviations of water level without carrying out full-scale tests, without adjusting the settings of tripping actuation according to the water level in the drum. The foreign methods of PID-regulator adjustment in the cascade system of automatic water level control in the boiler
... trol in the boiler drum are considered, on the basis of which an invariant cascade system of automatic control is proposed. The invariant Cascade-System of Automatic Control (CSAC) of water level in a boiler drum is offered. Simulation results of the invariant cascade-system of automatic control in comparison with CSAC, configured with best foreign method, showed a significant improvement in the quality of regulation in all the major disturbing influences. The results can be used in the development of adaptive control systems and other thermal power devices.


oa Civil Engineering = Siviele Ingenieurswese - The diversion of the Umlaas river
|Article Title||The diversion of the Umlaas river|
|© Publisher:||South African Institution Of Civil Engineering (SAICE)|
|Journal||Civil Engineering = Siviele Ingenieurswese|
|Publication Date||Sep 1952|
|Pages||225 - 243|
|Keyword(s)||Bluff excavation, Calcareous sandstone, Catchment, Diaphragm wall, Drain, Excavations, Frictional resistance, Offloading areas, Outfall works, Parabolas, Parapet wall, Pneumatic-tyred roller, Poker type vibrators, Skips, Velocities, Vertical guide rails and Weepholes|
This work, involving more than 6,000,000 cubic yards of earthworks and 118,000 cubic yards of concrete, was necessary for the construction of the National Airport at Durban. The paper descriptionbes the design and construction of a concrete lined canal 12,365 feet long by 239 feet wide having a capacity of 63,800 cusecs, into which the Umlaas River was diverted, and also gives details of the construction of the inlet and outfall works of the canal and of the construction of a road bridge and a rail bridge over the canal.
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HydraStar Flow Control Valve — 3/8in., Model# F600S
Roll over image to zoom in
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Precision HydraStar flow control and full shutoff in one flow direction, unrestricted flow in opposite direction. Ideal for control of flow to hydraulic motors as a means of controlling motor speed. 5,000 PSI, steel construction.


Central government enterprise, National Hydroelectric Power Corporation (NHPC) will raise Rs 6,000 crore from the Initial Public Offer (IPO), which will hit the market on August 7.
"Rs 4,000 crore will be used to finance the under construction projects of the company while Rs 2,000 will be given to the government of India," NHPC Director (project) JK Sharma told reporters here.
For its IPO, NHPC has fixed the price band between Rs 30-36 per equity share.
On the ongoing projects, Sharma said that 11 projects of 4,622 MW capacity are currently under construction at various stages.
"The company is awaiting government's nod for five more projects with a capacity of 4,565 MW and certain joint venture projects having capacity of 2,166 MW," he said.
"Our current installed capacity is 5,175 MW and by 2013 end, our total installed capacity will be 10,000 MW," Sharma said, adding, most of the under construction projects are going to be commissioned on schedule.


1. The cutter suction dredger could be used in inland waterways, lakes, coastal areas for projects of desilting and sand dredging. 2. Customized according to dredging depth, working capacity and discharge distance. 3. The cutter suction dredger is of dismountable structure, and can be divided into mechanical type, semi-hydraulic type, all-hydraulic type according to the different operating methods. 4. Dredging pump is driven by main diesel engine placed in main central pontoon, and auxiliary engine provides power to cutter head, winches, spuds and lighting system.


The project will:
The project is being constructed in conjunction with a levee improvement project by the US Army Corps of Engineers. The USACE project includes replacing two existing culverts that penetrate the levee with a new culvert and fish-friendly flood gate and restoring the levee crest and erosion protection.
During construction, moderate to high truck traffic is expected along Hannegan Road and 6th Street in Lynden. Flaggers will direct traffic at the intersection during high truck traffic times. No road closures are expected.
The channel realignment is a Whatcom County project.
And documents associated with this project will be posted here.


IceToolz A551 Floor Pump
The IceToolz A551 Floor Pump is a high pressure steel pump with a top-mounted gauge, ergonomic two toned handle design and a twin valve head with thumb-lock lever.
Capable of pressures up to 160 psi or 11 bar.
- Top mounted gauge
- Strong steel construction
- Ergonomic two toned handle
- Twin valve head for Presta/Schrader valves
- Thumb-lock lever on head for ease of use
- Max pressure 160 psi / 11 bar


The first phase of construction is expected to start late 2018 and last for approximately two years. Phase 1 of the project will include:
- An above-ground reservoir
- One above-ground valve chamber and three underground valve chambers
- Piping that will connect to the existing water mains in the area
Phase 2 of the project is expected to take place in approximately 2040.
The reservoir project will be designed to enhance the existing site with landscaped areas and interpretive space. As part of the plans, the Township of Langley and Metro Vancouver are working together to develop the proposed Smith View Park on the same property.


A consortium of 5 commercial banks, led by NMB, has signed Loan Facilities agreement with Super Nyadi Hydropower Project on 14th March,2018. The financial closure signing ceremony held at Hotel Yak & Yeti.
The project with installed capacity of 40.27 MW is promoted by Siuri Nyadi Power Pvt. Ltd. The consortium have signed loan deal and committed 75% of the project cost.
Super Nyadi Hydropower Project is a run-of-the-river type scheme project located at Baundada VDC of Lamjung district in the Western Region of Nepal.
The average annual energy generation of the project is 245.58 GWh. The energy generated from the project is evacuated through a 11 km long 132 kV Tarikuna S/S to NEA substation .


Performance analyses of mixed-flow pumping systems for S-to-N water diversion project in China
Article publication date: 23 February 2015
There are three pumping stations in the first stage of Eastern Route S-to-N Water Diversion Project in China, where the mixed-flow pumps with guide vanes are installed, consisting of Baoying, Hongze and the No. 2 Suining pumping stations. By using flow rate coefficient and head coefficient as expression, firstly the hydraulic performances of the hydro models used are analyzed. Secondly the structural features and system performances are compared. And finally the measurement results in site are comprehensively evaluated. The results show that the pump models both introduced abroad and developed at home and the pumping system types adopted in the three pumping stations have been confirmed satisfying the requirements of operational conditions and high efficiency, stable and safety operation in all working conditions can be ensured.
Zhang, R., Li, L., Zhu, H., Yao, L. and Shi, W. (2015), "Performance analyses of mixed-flow pumping systems for S-to-N water diversion project in China", World Journal of Engineering, Vol. 11 No. 6, pp. 627-634. https://doi.org/10.1260/1708-52184.108.40.2067
Emerald Group Publishing Limited


- Flood Warning
...The Flood Warning has been extended for the following rivers...
Little Pee Dee River at Galivants Ferry affecting Dillon...Horry and Marion Counties SC
Great Pee Dee River at Pee Dee affecting Marion and Florence Counties SC
...The Flood Warning continues for the following rivers...
Lumber River near Lumberton affecting Robeson County NC
Waccamaw River at Conway affecting Horry County SC
The Flood Warning continues for
The Lumber River near Lumberton.
* until Saturday afternoon.
* At 6:54 PM Thursday the stage was 13.39 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river will continue to fall and get below flood stage by just
after midnight tonight.
* Impact...At 13.0 feet...Low land flooding will occur along the river. The flood
waters may affect some residential property as water backs up into the
drainage ditches in the city.
Instruction: People with interests along the river should take the necessary precautions to
protect life and property from the flood waters.
Additional information is available on our website at weather.gov/ilm under the
"Rivers and Lakes" link.


Calculation of stage-discharge relationship curves using computational run-off modelling on behalf of the department of the provincial government of Carinthia, Department 18 – Water Management, subsection Hydrography for use in flood warning model “Carinthia”.
The work comprises the analysis of run-off measurements regarding their flow rates, roughness and gradient. Based on these findings, the water levels for HQ30 and HQ100 were determined using a computational fluid dynamics model. Using the results of the computational analysis, the stage-discharge relationship curves were defined.
The results of the calculations are also used to represent the critical water levels in the water level hydrographs provided by the hydrography.
Amt der Kärntner Landesregierung, Abteilung 18 – Wasserwirtschaft – Hydrographie
Measurement stations of the Carinthian hydrographic service:


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- High Speed Deep Well Pump
4/6 Inch Solar Water Pump For Irrigation
ACDC solar pumps can use the solar panel to generate DC power, drive the pump to work, and connect directly to the mains to pump water. Fully automatic operation with MPPT inverter. With water level control, high voltage / low voltage / over current / high temperature / lightning protection and other functions.
1 products found
The 4/6 Inch S/S Solar Low Flow Solar Water Pump is characterized by large flow and suitable for agricultural irrigation.


Dam Arch Construction - 3 PDH
This course will introduce you to the construction of concrete arch dams. The design and analysis of any dam assumes that the construction will provide a suitable foundation and uniform quality of concrete. The design also depends on the construction to satisfy many of the design assumptions, including such items as the design closure temperature. The topics in this course will deal with the construction aspects of arch dams as they relate to the preparation of planning, design, and construction documents.
3. FOUNDATION EXCAVATION
4. CONSOLIDATION GROUTING AND GROUT CURTAIN
5. CONCRETE OPERATIONS
6. MONOLITH JOINTS
7. GALLERIES AND ADITS
9. APPURTENANT STRUCTURES
Upon completion of this course you will:
* Learn about schemes for diversion of streamflow around constructrion worksites;
* Learn guidelines for foundation excavation;
* Learn how grouting technology is applied;
* Learn important considerations in configuring concrete monoliths;
* Learn about consolidation grouting and grout curtains;
* Learn how concrete quality is controlled; and
* Learn where shear keys and waterstops are needed..
This course is intended for civil engineers and other design and construction professionals wanting an introduction to the design and construction of concrete arch dams.
Benefit for Attendee
This course will give civil engineers and others an introduction to important considerations in the construction concrete arch dams.
This is an introduction to the design of concrete arch dams for professional engineers and construction managers.
After completion of this course you will have a basic understand of the construction of concrete arch dams.


ISLAMABAD, Pakistan (Reuters) – The Water and Power Development Authority (WAPDA) has sped up the construction of 12 small and medium dams across the country, with the goal of increasing renewable energy generation, water availability, and climate resilience.
The dams, according to official sources, were dual-purpose structures designed to store rain and floodwater while also generating power for all of the country’s federating units.
He went on to say that the Winder Dam project, which would generate 0.3 megawatts (MW) of energy and store 0.036 million acre-feet (MAF) of water, the Naulong Dam project, which would generate 4.4MW of power and store 0.20MAF of water, the Hingol Dam project, which would generate 1MW of electricity and 1.41MAF of water storage, the Garuk Dam project, which would generate 0.3MW of energy and 0.05MAF of water storage After completion, the Nai Gaj Dam in Sindh will generate 4.2MW of electricity and hold 0.30MAF of water, while the Darawat Dam will generate 0.45MW of energy and hold 0.12MAF of water.
Dams will aid in the solving of water and energy issues, as well as the creation of jobs in local communities and the establishment of tourist and economic prospects.
In Khyber Pukhton Khawa, the WAPDA has started work on a number of small and medium dams, including the Kurram Tangi Dam, which has an 83.4MW hydropower potential and 1.2MAF water storage capacity, the Tank Zam Dam, which has a 25.5MW power generation capacity and 0.345MAF water storage capacity, and the Daraban Zam Dam, which will produce 0.75MW energy and 0.069MAF water storage capacity.
The WAPDA official went on to say that the agency had started work on several small dams in Punjab, including Ghabir Dam, which has a 0.15MW power production capacity and 0.066MAF water storage capacity, and Papin Dam, which has a 0.3MW power production capacity and 0.089MAF water storage capacity and is in various stages of development. He explained that the authority has opted to speed the completion of construction and development work on the projects due to energy demands, project completion schedules, and finance availability.
Chiniot Dam will provide 80 megawatts of low-cost, ecologically friendly electricity. The Chiniot Dam, which will generate 80 megawatts of inexpensive and environmentally friendly power and is located on the Chenab River 5 kilometres from Chiniot city, will be completed by December 2022.
According to data, Chiniot Dam has a gross storage capacity of 0.90 million acre-feet (MAF) and a power generation capacity of 80 megawatts (274 GWh). The project’s implementation agency, the Water and Power Development Authority (WAPDA), has completed development work on the project’s many small and medium dams, putting the project’s construction to an end. The government will contribute Rs50 million via PSDP disbursements, with WAPDA covering the remaining Rs 96.33 million from its own funds. The Chiniot Dam Project was the subject of a feasibility study done by WAPDA, which was completed in 2019. The Ministry of Water Resources (MoWR) has received the PC-II Proforma for Detailed Engineering Design for discussion at the DDWP conference.
The DDWP has approved the PC-II Proforma, subject to certain limitations, according to the announcement. The project is significant, according to a WAPDA official, because it would help offer daily water supply for Chiniot city, as well as economic opportunities for citizens to establish fisheries projects and a tourist destination for locals to enjoy. To avert significant floods in places near rivers and areas with torrential topography, small and medium dams are needed around the country. The modest dams would help to conserve rainfall and floodwater, which could subsequently be used for household and agricultural reasons.


The range of DWC-S self-priming pumps with silenced canopy are built for pumping water with solids holdup, containing sand and mud. The special design makes these pumps suitable for different applications, used at contractor sites, civil service and industry where unclean liquid pumping and water displacement necessary.
The open impeller has wide passages for control solids, the standard version is in cast iron type spheroidal with high wear resistance. The standard models are built on skid base; on request is available on an off-road trailer.
Silenced version with air or water cooled engine, available with five different inlet/outlet sizes (4″, 6″, 8″, 10″ and 12″).
Suitable for these sectors:


Maldives Transport and Contracting Company (MTCC) has said Kaafu Maafushi land reclamation and shore protection project is 80% complete.
Maafushi received rock boulders required for the revetment works on Wednesday.
This project will consist of 25 hectares of land reclamation and the construction of a 1,100m rock boulder revetment.
Furthermore, MTCC stated the project aims to bring a solution to the high demand of residential plots on the island.
The estimated valuation of the project is around MVR 100 million.


The Ilisu Dam is a major hydro-development project currently being undertaken by the Turkish Government near the village of Ilisu on the Tigris River, 65 km away from the Syrian border.
The Ilisu dam is one of the 13 GAP dams that remains to be completed. Although plans for the dam were approved in 1982, the conflict between the central Turkish Government and the PKK delayed the start of construction until the late 1990s.  The project is centered around 135 meter high and 1820 meter long rockfill dam which will be constructed on the Tigris River and will generate 1200 MW of electricity. When the dam’s reservoir is filled it is expected to inundate a large area upstream, creating a reservoir with a surface area of approximately 313 km2
The Ilisu dam will contribute hydropower to the region’s energy grid, while the water storage of the reservoir will serve irrigation needs. The dam may also help control the seasonal variation of the river’s flow, restricting flow during the flood season and releasing water in the dry season.
- ^ 1.0 1.1 The Corner House & the Kurdish Human Rights Project. (April 2007). “The Ilisu Dam: Downstream Water Impacts and Iraq”, report of Fact Finding Mission to Iraq, 29 March 2007, published by the Kurdish Human Rights Project. Accessible at http://www.khrp.org/index.php
- ^ BBC. (24 December 2008). “Insurers Halt Work on Turkish Dam”. Available at http://news.bbc.co.uk/2/hi/europe/7798857.stm
Case Studies Related to Ilisu Dam
|Projects and Initiatives||Agreements and Treaties|


Series ESV: Pipeline valve completely made of V4A
The new float valves of the ESV series are particularly robust valves for high inlet pressures and large flow rates. The valves are made completely of stainless steel and, due to their completely sealed design, can be used both as pipeline valves and as built-in valves with immersion pipe connection.
Due to the special lever transmission, ESV valves can manage with comparatively short float rods. For all ESV we also supply the matching floats made of stainless steel (V4A).


NEW CONTRACTOR MAKES PROGRESS ON PALM RIDGE RESERVOIR
The City of Ekurhuleni has heeded the cry of Palm Ridge residents to intervene in the construction of Palm Ridge reservoir due to longstanding delays.
The city has engaged a new contractor that has already make progress to bring the construction of the reservoir to a close.
The brief to the new company, Complete Cycle JV Ilungelo Lami which started work in April 2021, was project management for the construction of 35ML Palm Ridge reservoir (Katlehong 2) for work stages 5 & 6 which included:
- completion of the construction of the 35ML reservoir, i.e., water proofing, drainage and installation of accessories;
- installation of mechanical components and scouring chamber;
- excavation for laying and testing of 800mm diameter HDPE pipelines for outlet and inlet sections;
- site lighting protection and perimeter fence installation;
- reinstatement of access road and any part disturbed during construction;
- construction of 562m long, 900mm diameter stormwater and scouring line; and
- tying in of the pipeline to supply the reservoir from Rand Water meter.
The following work, among others, has been completed:
- Building of the scaffolding
- Excavations and concrete preparation
- Painting of the reservoir
- Installation of necessary pipes, valves and gutter


Groundwater lowering in the construction of a private house in Vilnius, Bebru Street. Uprent carried out groundwater lowering services.
The service consisted of the following:
- project development,
- equipment transportation,
- equipment installation,
- equipment rental,
- project supervision,
- dismantling works.
Project duration: 4 months.
The following were used in the project:
- BBA PT 150 main electric pump E,
- BBA PT 90 spare diesel pump.
This pump configuration was chosen to ensure continuous drainage of groundwater during excavation and concreting works. Thus, we managed to prevent even the slightest possibility of loss of electricity or groundwater entering the construction site, which could affect duration of construction and lead to higher construction costs.


Restoration/Enhancement for the purpose of Stream Flow Enhancement under Stream Flow Program in Butte county.
Sutter Butte Flood Control Agency
The OWA FSR Project is a multi-benefit project featuring flood control, ecosystem restoration and recreation improvements. In addition to flood control related weir improvements, the project will degrade a section of the existing dike to reconnect the Feather River to approximately 400 acres of historic floodplain. The project also incorporates invasive species removal, new riparian restoration plantings and floodplain grading modifications to enhance fish passage and to improve wetland and fish rearing habitat. The project also includes the construction of new recreational footbridges and grading work to provide new kayak/river access, public parking, and site access improvements.
Restoration, Infrastructure Improvement
Project Benefits a Disadvantaged Community (or SDAC):


Please use this identifier to cite or link to this item:
Hydrodynamic simulation of density current and muddy lake for Shihmen reservoir
|Authors: ||Jian, Da-Jun|
|Contributors: ||NTOU:Department of Harbor and River Engineering|
density current;muddy-lake;numerical model;water entrainment coefficient;total drag coefficient
|Issue Date: ||2017-05-24T08:40:35Z
|Abstract: ||台灣地區山坡陡峭水流湍急，颱風時期因降雨集中，導致水庫上游集水區產生劇烈的沖蝕與大規模崩坍形成高濃度的含砂水流運移至水庫庫區。含砂水流與庫區清水間有密度差異，在適當條件下含砂水流會潛入至庫底形成底層異重流並往壩址運移。本研究使用MacCormack (1969)二階精度差分方法建置變量異重流數值模式，模擬含砂水流因達潛入條件而潛入庫底，形成異重流運移至壩址之運動情形。研究中分析石門水庫多場颱風放水口之濃度歷線，並配合質量守恆之觀念建立概念化渾水潭模式，模擬異重流運移至壩址形成渾水潭後，水庫放水之泥砂濃度。 本研究首先使用定量鹽水異重流實驗之數據，檢定異重流模式中之捲水係數(Ew)與總阻力係數(Cd)，以瞭解參數對於異重流厚度、平均濃度及平均速度之敏感度；並使用變量鹽水異重流實驗之數據進行模式驗證，利用上述之測試結果調整模式參數，使模擬結果與實驗數據相近；最後採用石門水庫集水區之資料，以數場颱風事件進行模擬分析，比較放水口實測之放水濃度與模擬之渾水潭出流濃度。|
Hillsides in Taiwan are usually steep with rapid flow. Large scale landslide and severe erosion usually occur in concentrated rainstorms, which result in a large amount of sediment flowing through overland areas to channel network and then to downstream reservoir to reduce the useful life of reservoir. Since sediment laden flow and reservoir ambient flow conform to the plunge condition, the turbidity flow plunges into the reservoir bottom as a density current. A one-dimensional unsteady density current model was built by second-order MacCormack scheme to simulate the turbidity current plunging into the reservoir bottom and move to the dam site. A conceptual muddy-lake model based on the analysis of Shihmen sediment observations and mass conservation was also developed for reservoir operation to estimate the reservoir outflow concentration. Water entrainment coefficient (Ew) and total drag coefficient (Cd) were calibrated using the data from series saline-density-current flume tests. Sensitivity analysis was conducted to realize the influences of the coefficients on the thickness, velocity, and concentration of the density current. Good similarity can be found between the simulated and the recorded data using the calibrated and . Moreover, hydrological records from typhoons in the Shihmen reservoir of Taiwan were collected to demonstrate the capability of the proposed model for density current simulation. The model is promising to provide valuable information to authorities for reservoir operating to reduce reservoir sedimentation.
|Appears in Collections:||[河海工程學系] 博碩士論文|
Files in This Item:
All items in NTOUR are protected by copyright, with all rights reserved.


This research introduces a hybrid approach for flood risk assessment through GIS. The developed approach is based on the integration of hydraulic simulation and GIS analysis, which allows spatial-based visualisation and prediction of flood disaster. In particular, the Hydraulic Engineering Center River Analysis System (HEC-RAS) model is employed to simulate multi-scenario flood cases within a Canadian context; the dimensional stream channel model is constructed based on geometry obtained from Digital Elevation Model (DEM), and ArcView GIS software is used for producing water surface grids, and Triangular Irregular Network (TIN) model is utilised for the study area based on Digital Terrain Model (DTM). The developed approach is applied to a section of the Qu'Appelle River in southern Saskatchewan. The results indicated that the developed methodology is efficient in modelling and visualising the spatial extent of different flood scenarios and in determining flooded areas at risk. It was found that changes in water elevations of the Qu'Appelle River made the downstream areas more at risk.
|الصفحات (من إلى)||440-455|
|دورية||International Journal of Risk Assessment and Management|
|المعرِّفات الرقمية للأشياء|
|حالة النشر||Published - 2006|
ASJC Scopus subject areas


- Flood Warning issued May 30 at 9:34AM CDT until May 31 at 11:58AM CDT by NWS
- Effective: 9:34 a.m. on Monday, May 30, 2016
- Expires: 11:58 a.m. on Tuesday, May 31, 2016
...The Flood Warning continues for the following rivers in
Blackwater River near Blue Lick affecting Cooper and Saline
Grand River near Sumner affecting Carroll...Chariton...Linn and
Grand River near Brunswick affecting Carroll and Chariton Counties.
Marais Des Cygnes River at Osawatomie affecting Miami County.
Missouri River at St Joseph affecting Doniphan...Andrew and Buchanan
Missouri River at Napoleon affecting Jackson...Lafayette and Ray
Missouri River at Waverly affecting Carroll...Lafayette and Saline
Missouri River at Glasgow affecting Chariton...Howard and Saline
Platte River At Sharps Station affecting Platte County.
Platte River near Platte City affecting Platte County.
...The Flood Warning continues for the following rivers in Kansas...
Marais Des Cygnes River at La Cygne affecting Linn County.
Missouri River at Sibley affecting Clay...Jackson and Ray Counties.
Missouri River At Miami affecting Carroll...Chariton and Saline
Missouri River at Boonville affecting Cooper and Howard Counties.
The Flood Warning continues for
The Grand River near Sumner.
* until Tuesday morning.
* At 8:45 AM Monday the stage was 27.9 feet.
* Flood stage is 26.0 feet.
* Minor flooding is occurring.
* Forecast...The river will continue to fall to below flood stage by
late this morning.
* At 28.0 feet...Rural roads are under water.
* At 26.0 feet...Rural land adjacent to the river is flooded.
* At 23.0 feet...Bottomland 1 to 2 miles south of the gage begins to
Location FS Stage Day/Time Forecast
Sumner 26 27.9 Mon 09 AM 25.4 this afternoon
- See more at NOAA


IS (ISR) series single-stage single-suction centrifugal pump
These series of pumps are single-stage single-suction cantilever centrifugal pump for transmission of clean water and liquid without corrosive, designed and manufactured in accordance with the international standard ISO2858. The series include 34 basic models and 242 specifications acquired by cutting impeller and changing speed. The shaft seals have two kind of soft gland packing and mechanical sea. The main parts of the pump are generally made of grey cast iron and high-grade carbon steel, can also be used stainless steel shaft and copper impeller depending on the application. The IS pump can be used for transporting medium at temperature below 80℃, the medium temperature of the IH series up to 130℃.


Advanced drainage improvement works are being accelerated on the A55 in order to help reduce the risk of future flooding on the carriageway, Welsh Labour’s First Minister Carwyn Jones has announced.
Extra funding of £0.5m is being provided to ensure the work can start in the autumn this year, subject to agreement with the landowners. The accelerated advanced drainage work will be between junctions 12 and 13 on land adjacent to the carriageway and was originally part of the extensive Abergwyngregyn to Tai’r Meibion scheme. It can now be completed 12 months ahead of schedule, subject to agreement with the landowners.
Planning work has already begun on the project which will involve the construction of earth bunds, ditches and channels to take flood water into the existing water courses. This will help prevent flood water from entering onto the A55. Culverts will also be upgraded to prevent blockages during heavy rainfall.
The First Minister will also confirm that work on the separate Tal-y-bont flood alleviation scheme is due to begin this spring and is expected to be completed before next winter. The £1.9m project is funded by the Welsh Labour Government.


The Flood Warning continues for
the Blackwater river near Blue Lick.
* Until late Monday night.
* At 7:45 PM Friday the stage was 28.3 feet.
* Flood stage is 24.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Forecast... the river will continue rising to near 29.0 feet by
early Saturday afternoon. The river will fall below flood stage
* At 29.0 feet... livestock in pastures along the river may be
endangered. Extensive damage also occurs to cropland and pasture.
* At 24.0 feet... cropland and pastures along the river flood.
location fs stage day/time forecast
Blue Lick 24 28.3 Fri 08 PM 29.0 early Saturday
lat... Lon 3894 9342 3899 9348 3903 9297 3894 9295 3893 9323
Severe Weather Get Mobile & Email Alerts
Cooper Severe Watches & Warnings NOAA Weather Radio
Statement as of 8:43 PM CDT on July 03, 2015


This project involves the construction of two open, lined basins within the Donald C. Tillman Water Reclamation Plant (located in Sepulveda Basin) for temporary storage of excess peak wet weather flows. Currently one of the two wastewater treatment units at the plant must be shut down and used for storage during substantial rain events in order to prevent overflows in the sewers downstream from the plant. The proposed basins would provide 15.2 million gallons of storage capacity while both wastewater treatment units remain operative during wet weather periods. The project will not change the operating capacity of the plant but will allow the plant to operate at its designed capacity (80 mgd) during both wet weather and dry weather periods and will also help to prevent overflows in the downstream collection system during peak wet weather events.
The U.S. Army Corps of Engineers adopted a Finding of No Significant Impact.
(Click on underlined text to view report)
|Public Review Period
|August 10, 2011 - August 24, 2011


Oromia region - Ethiopia
Salini Costruttori S.p.A.
2003 – 2010
Description for Gibe II Hydropower (Ethiopia)
Gibe II is the second stage of the Gibe-Omo hydroelectric cascade which includes upstream Gilgel Gibe HPP, in operation, and downstream Gibe III (completed), Koysha (under construction) and Gibe V (both planned).
- Gravity Dam (H = 55 m, L_crest = 168 m )
- Power Tunnels ( L = 25.8 km, D = 6 m )
- No. 2 Penstocks ( L = 1.1 km, D = 3.6 ÷ 2.8 m)
- Surge Shaft ( H = 95.5 m, D = 18 m )
- Outdoor Power House ( No. 4 Pelton turbines IP = 4x105 MW )
HV Transmission Lines (Tanzania)
This is a feasibility study of high voltage transmission lines and...
Limonlu HPP comprises 4 power plants in cascade to be constructed in 2 phases...
Gibe III Hydropower (Ethiopia)
Gibe III hydropower plant is the third stage of...
Montedoglio dam has suffered some damages at the spillway and dam body due to...
Lower Diamphwe (Malawi)
This project includes the Lower Diamphwe Multipurpose Dam and associated...
Kariba Dam (Zambia)
This project foresees the rehabilitation for the...
Malagarasi Hydropower (Tanzania)
Malagarasi HPP will be a run-of-the river...
Koysha Hydropower (Ethiopia)
Koysha (2’160 MW, under construction) is the...
Uribante Doradas (Venezuela)
Hydroelectric project with IP = 300 MW.


John Guest PPSV040808WP 1/4" Tube OD x 1/4" Straight Shutoff Valve
The John Guest Valve Start is the perfect appliance to control the flow of your water supply systems. It can be used with radiant heating systems as well as hot and cold water applications. This Valve Start can be used with copper, CPVC, PB, and PEX piping.
|Size:||1/4" x 1/4"|


3rd April 2018
11th May 2018
A & H Construction will be repairing/replacing
the canal wall copings at this location.
The works will be undertaken utilising
The canal is quite wide at this location so boat traffic will be able to safely pass through the work area.


This project included the demolition and removal of the existing sewer control structure concrete roof, appurtenances within the control structure and wet wells, and all electrical conduits, hydraulic lines, brackets, and other items associated with existing Slide Gates 1 through 6. It was necessary to construct bypass piping and pumping in order to facilitate the cleaning of the sewer pump station wet wells prior to rehabilitation, which included the coating of two wet wells and control structure. After the new coating was applied, it was necessary to install new FRP grating and support system in the control structure, new safety chain system in each wet well, five new slide gates, and permanent plug at existing Slide Gate 4. Also included was the construction of a new concrete roof for control structure and installation of four new roof access hatches, along with dewatering and construction of all temporary shoring systems required to complete the work.
Category: Other, Sewer Transmission,
Client Type: City, San Mateo,


MEDIA STATEMENT BY UGU DISTRICT MUNICIPALITY:
Please be advised that due to longer than anticipated stage 4 load shedding, our water supply systems are affected and should Stage 4 of power cuts continue, there will be intermittent water supply.
All areas of supply will be affected. The Gamalakhe system has been affected and Sport and Leisure will only be started when plant is above 75% and Eskom supply is back. Seaslopes supply is alternated between gravity and boosted flow, Margate and Ramsgate flows are regulated based on the flow to Seaslopes.
Marburg level are low as currently the Water works storage is being built up which affects supply to Marburg residential, CBD and Oslo beach. Northern system remains stable as it is gravity fed.
Ugu District Municipality Communications


MoPWH – Telaga Waja Dam Development – Bali - Project Profile
"MoPWH – Telaga Waja Dam Development – Bali - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.
The "MoPWH – Telaga Waja Dam Development – Bali - Project Profile" is part of Timetric's database of 82,000+ construction projects. Our database includes a 10+ year archive of completed projects, full coverage of all global projects with a value greater than $25 million and key contact details for project managers, owners, consultants, contractors and bidders.
The Ministry of Public Works and Housing (MoPWH) plans to construct the Telaga Waja Dam in Bali, Indonesia.
The project involves the construction of a 95m tall and 310m long dam with a capacity of 13.68 million m3. It includes the construction of a 2.36MW hydro power plant, pumping stations, underground pipelines, a penstock and the installation of turbines, generators and machinery.
The project will be funded by the 2016-2020 fiscal year state budget.
Komite Percepatan Penyediaan Infrastruktur Prioritas (KPPIP) is the implementing agency for the project.
Land acquisition activities are underway. Project facing delay due to the opposition from tourist services industry.
The project involves the construction of a 95m tall and 310m long dam with a capacity of 13.68 million m3 in Bali, Indonesia.
The US$88 million project includes following:
1. Construction of 2.36MW power plant
2. Construction of pumping stations
3. Construction of a penstock
4. Construction of underground pipelines
5. Installation of turbines
6. Installation of generators
7. Installation of machinery
Reasons To Buy


Multiple Hydraulic Pumps
Multiple hydraulic pumps already assembled, in aluminium, and with external gears.
Some pumps in this category are also available with cast iron flanges.
Choose from standard, at separate-stages, single inlet, and shaped multiple pumps. We can supply multiple pumps with stages of different size groups to handle even very different flow rates.
|Technical Data:||Options available:|


Easton Drive Drainage Improvements
Plan Holders List
This project will improve the storm drainage system in the neighborhood around 2627 Easton Drive.
Scope: Project work includes construction of new storm drain piping, inlets, curb, and gutter in the public right-of-way and storm drain piping through an existing easement in private property.
Project Status: The construction phase of this project is complete. The project is in the closing phase. (Updated: 2/4/2020).


Melka Wakena is a 153MW hydro power project. It is located on Shebelle river/basin in Oromia, Ethiopia. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. Post completion of construction, the project got commissioned in 1988. Buy the profile here.
The project was developed by Technopromexport and is currently owned by Ethiopian Electric Power with a stake of 100%.
Melka Wakena is a reservoir based project. The hydro reservoir capacity is 763 million cubic meter. The gross head and net head of the project are 300m and 297m respectively. The penstock length is 535m. The penstock diameter is 4.2m. Melka Wakena underwent through rehabilitation & modernization during September 2004-February 2006. The project generated 543 GWh of electricity.
The hydro power project consists of 4 turbines, each with 38.25MW nameplate capacity.
The project has 4 electric generators installed at the site.
The project got commissioned in 1988.
For more details on Melka Wakena, buy the profile here.
Technopromexport, a subsidiary of Prominvest of Rostec State Corporation, is a state owned engineering company that specializes in the construction of power projects. The company carries out the construction of various energy facilities including thermal power plants such as combined-cycle, gas-turbine, geothermal and diesel; hydroelectric power plants; RES based plants; power transmission lines and substations; geothermal power plants; and facilities for oil & gas, petrochemical and chemical industries. Technopromexport is headquartered in Moscow, Russia.


Ministry of Electricity and Energy of Myanmar developed Shweli River Hydropower Station Transmission Line Project in Myanmar. Yunnan United Power Development Corp was EPC contractor. The project covered the construction of 135 km transmission line with the capacity of 132 KV, including 261 towers and related substations. The line was from Let Pan Hla to shweli river III hydropower substation. The project occupied a very important position in the planning and construction of Myanmar's national power system and would help Belt and Road Initiative development.