overshot gate quotation

Overshot gates (also known as pivoting weir gates) are used to control upstream water levels. Versatility, efficiency, and safety are the primary reasons the Fresno Overshot Gate is the method of choice for municipal, agricultural, and industrial canal water control.

Fresno Valves & Castings manufactures several standard sizes of hand-pull or stop gates. An extruded metal section embeds in the side walls or is mounted on the face of the rectangular flume or onduit and acts as a guide for the gate slide. The gate consists of an aluminum plate reinforced if necessary with hand holes for manual opening of the gate.

The single leaf overshot gate is an overshot style gate that has been used in the water industry for close to 40 years. The simplicity of the design allows it to be cost effective and the overshot design allows for excellent open channel control. The cable drive uses stainless steel wire ropes for longevity and a machined drum drive for smooth cable operation. A self-locking gearbox ensures precise gate positioning without drifting.

Waterman Canal Gates offer reliable water control on canal and pipeline systems and are built-to-last and designed for years of reliable service, offering a typical field life exceeding 40 years.Learn More

Waterman Roller Gates are designed to control flow and reduce operating loads for high head applications, large loads, or where frequent operation is required. Stainless steel, permanently-lubricated wheels are mounted on each side of the gate. The wheels operate on rails mounted to each side of the opening.Learn More

Waterman Tilting Weir (Overshot) Gates are an overflow-type gate used to control levels in canals, basins and other agricultural, municipal and industrial applications.Learn More

Waterman Self Regulating Tide Control Gates are ideal for tidal wetlands preservation and restoration. The gates restore tidal flushing of marshes without flooding of upland property behind dikes and levees.Learn More

Waterman C-8 Slide Ditch Gates are the most advanced, easiest operating, tightest sealing gate of its type and price in the field of water control. Most commonly used on ditch turnouts and similar low head operations, this ruggedly designed, press-formed, all steel gate holds in any position for easy flow regulation, seals positively, slides easily, and does not load with sand or silt.Learn More

Mueller refers to one or more of Mueller Water Products, Inc., a Delaware corporation ("MWP"), and its subsidiaries. MWP and each of subsidiaries are legally separate and independent entities when providing products and services. MWP does not provide products or services to third parties. MWP and each of its subsidiaries are liable only for their own acts and omissions and not those of each other. Mueller brands include Mueller®, Echologics®, Hydro Gate®, Hydro-Guard®, HYMAX®, i2O®, Jones®, Krausz®, Mi.Net®, Milliken®, Pratt®, Pratt Industrial®, Sentryx™, Singer®, and U.S. Pipe Valve & Hydrant. Please see muellerwp.com/brands to learn more.

Split Gate – a WT innovation producing the best Check Structure options available– two blades in one frame (bottom up and top down). Standardsingle or double stem for debris/silt removal and emergency large flow dumps and Independent Blade where both blades operate independently for double blade automation.

“Smart” Sluice Gates – another WT innovation –  WT gates with integrated Controller (PLC), add telemetry for integrated Actuator and RTU in one enclosure.

Waterman offers best-in-class water control slide (sluice) gates for water treatment, wastewater, and hydropower applications. They’re noted for their excellent sealing and leak resistance, and for their long service life. Each gate is custom-designed to your project requirements.

Waterman cast-iron gates lead the industry in design and performance.  Waterman’s decades of experience in cast iron technology and in-house (U.S.-based) machining and testing positions the company as a preferred supplier.

Waterman stainless-steel and aluminum fabricated gates offer a continually-self-adjusting seal system that performs better than required by the AWWA C561/C562 spec.

We offer many resources for gate design and selection on-line.   For additional help in specifying a gate for your project, we welcome your call to our Design and Specification Support Line  (800) 445-8457.

WATERMAN SS-250 SERIES STAINLESS STEEL SLIDE GATES are engineered for excellent sealing while providing maximum resistance to corrosion. The gates feature Ultra High Molecular Weight Polyethylene (UHMW) sliding and seating surfaces, dissimilar from the gate slide material, resulting in low coefficient of friction while maintaining superior corrosion resistance.

SS-250 Series Slide Gates may be specified with optional type 316 stainless steel for use in unusually corrosive environments such as hydrogen sulfides or salt water.

NSF 61  / NSF 372The SS-250 series water control gates (6” – 120”) conform to the requirements of NSF/ANSI 61 Drinking Water System Components – Health Effects and  NSF/ANSI 372.  They conform with the lead content requirements for “lead free” plumbing as defined by California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water Act.

Sluice gates. Heavy-duty sluice gates for seating heads of 55" to 200", medium-duty sluice gates for seating heads of 20" to 60", and light-duty sluice gates for seating heads of 6" to 24". Square, rectangular, round, rubber-sealed, and self-contained gates are all available. More information is available on our sluice gate page.

flap gates are built to exacting specifications to handle flows where it"s important to prevent the channel from backing up. Flap gates can be found in a variety of applications in water and wastewater treatment, especially in sanitary and combined sewer systems to control flows where more than one pipe or channel feeds into the same location. Flap gates can keep flows from one pipe from entering another.

"We are making excellent progress," Gates said, while also acknowledging that the Ukraine war has thrown a wrench in TerraPower"s plans because the reactors planned to operate with fuel coming from Russia and that relationship is no longer viable.

TerraPower"s first plant is slated for Wyoming and due to be online by 2030, Gates said. "This can make a huge contribution to climate challenges since it will be low cost and super safe," Gates wrote.

Where making electricity is responsible for 27% of emissions, growing things like plants and animals is responsible for 19% of emissions, according to a breakdown Gates provided in his own climate book.

Gates has backed several companies working to make meatless meat products, including Beyond Meat and Impossible Foods, he told Reddit users. And he"s also backed Memphis Meats (which has since rebranded under the name Upside Foods), Gates said, and which takes cells from an actual animals and grows the products in laboratory environments.

"I think eventually these products will be very good even though their share is small today," Gates told Reddit. It"s important to innovate alternative ways to produce meat alternatives and climate conscious ways because, "for people who want to go Vegan that is great but I don"t think most people will do that," Gates said.

Beyond diet, Gates generally supports the thesis that creating cost-effective clean-energy alternatives is the best way to fight climate change. "The key on climate is making the clean products as cheap as the dirty products in every area of emission — planes, concrete, meat etc," Gates said on Reddit. "This is the only way we can ask all the countries in the world to change. If it costs a lot extra we won"t succeed."

While innovation is the primary tool humans have to address climate change, according to Gates, everyone can contribute to mitigating the effects of climate change, he said.

Buying an electric car is something individuals can do, as are options to pay "a bit extra" to offset emissions generated when you travel, which Gates does for all of his emissions for himself and his family.

In 2010, the St. Johns River Water Management District (SJRWMD) of northeast Florida sponsored drainage modifications for the MTWCD in efforts to reduce the runoff from their fresh water drainage system into the IRL. The SJRWMD replaced the aged gate system to divert some water that used to go east into Turkey Creek and send it west to be pumped toward the USJR.

The six new gates are fully automated, controlled by a bank of four Campbell Scientific CR1000 dataloggers. Using LoggerNet software, the data loggers are programmed to measure twin water-level sensors upstream and a single sensor downstream of the gates. The software is installed on computers in the MTWCD and SJRWMD office, and is also installed on a SJRWMD laptop computer, giving managers the flexibility to control the gates from any location. Two cameras are positioned to view the gates, and they interface with the datal oggers and software to enable remote viewing of the site.

The Campbell Scientific equipment runs in automatic mode for most flow and flood control situations, with minimal need for staff intervention. All operations of the gates are monitored by the equipment: every water level, all six gate positions, rainfall, and other elements. The LoggerNet software also continuously calculates and reports the discharges flowing over the gates.

Two basic operational regimes have been programmed into the controlling data loggers: gate control and flow control. With gate control, an operator can set any of the six gates at any elevation, where they will stay until moved again. In flow control, the operator will specify any flow value, say 575 cubic feet per second (cfs). Because the LoggerNet system constantly calculates the gate flows, this operational regime allows the data loggers to physically move the gates based upon the desired flows. The option to override and go into manual operation is available whenever managers need it.

With these flow controls, the system limits discharges from the C-1 canal into Turkey Creek, no matter what the upstream water levels are. Emergency conditions are accounted for and the system is programmed to handle tropical storm and hurricane conditions when initiated by an operator. In these modes the gates are incrementally opened through any countdown desired (typically 72 hours) to allow more flow through as a tropical storm or hurricane advances to the area. After the storm threat has passed, or at any point in the countdown, the system can be switched back to automatic flood-control mode.

The main advantages of all the gate and operational modifications include the ability to raise the level of the upstream canal to divert water as needed, and the discharging waters that pass over the gates are more advantageous upper-level water that has a higher oxygen content than the lower-level water the other styles of gates discharged (for better water quality in Turkey Creek). These overshot gates also reduce sediment transport and turbidity in the discharge water. All these improvements obtain the ultimate goal of reducing fresh water discharge into the IRL estuary, resulting in the reduction of nutrients and other pollution into the Indian River Lagoon.