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Water Pressure Test Valve | Dual-function Hydrostatic Tes...Welcome to our product page for the Water Pressure Test Valve (Hydrostatic Test Plug Valve), a professional dual-function isolation device for hydrostatic pressure testing of industrial pipelines andread more
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Three-piece High-platform Ball Valve | 3-piece ISO 5211 D...Welcome to our product page for the Three-piece High-platform Ball Valve, a high-reliability quarter-turn valve with three-piece split body and ISO 5211 standard high-platform mounting pad. Itread more
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Forged Steel Check Valve | API 602 Forged High-pressure N...Welcome to our product page for the Forged Steel Check Valve, an automatic non-return valve for high-pressure and high-temperature industrial applications, preventing reverse flow to protect pumps,read more
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Forged Steel Welded Check Valve | API 602 Socket/Butt Wel...Welcome to our product page for the Forged Steel Welded Check Valve, a heavy-duty automatic non-return valve with forged steel body and welded end connections (socket weld / butt weld), engineeredread more
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Forged Steel Flange Check Valve | API 602 Forged Flanged ...Welcome to our product page for the Forged Steel Flange Check Valve, a high-reliability automatic non-return valve with single-piece forged steel body and ANSI B16.5 RF flanged ends, designed forread more
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Vertical And Horizontal Check Valve | Dual Installation B...Welcome to our product page for the Vertical And Horizontal Check Valve, an automatic non-return valve available in both vertical lift and horizontal swing configurations to adapt to any pipelineread more
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Bottom Valve (Foot Valve) | Built-in Suction Strainer Non...Welcome to our product page for the Bottom Valve (Foot Valve), a specialized check valve integrating a perforated stainless steel suction strainer and non-return mechanism, installed at pump suctionread more
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Power Station Check Valve | HP/HT Pressure Self-tightenin...Welcome to our product page for the Power Station Check Valve, a heavy-duty automatic non-return safety valve optimized for high-temperature, high-pressure and high-flow power generationread more
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Clamp-type Check Valve | Wafer Spring-assisted Low Water ...Welcome to our product page for the Clamp-type Check Valve (Wafer Check Valve), a compact automatic non-return valve with clamp-on wafer design, spring-assisted short-stroke actuation and soft sealread more
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Stainless Steel Vertical Check Valve | Lift-type 304/316L...Welcome to our product page for the Stainless Steel Vertical Check Valve, a premium lift-type automatic non-return valve engineered for vertical piping systems. It features all-stainless 304/316/316Lread more
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Stainless Steel Swing Check Valve | 304/316L Full-bore Co...Welcome to our product page for Stainless Steel Swing Check Valves, automatic non-return valves with hinged swing disc design and premium all-stainless construction. They feature full-boreread more
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Stainless Steel Lift Check Valve | 316/316Ti Bubble-tight...Welcome to our product page for the Stainless Steel Lift Check Valve, a premium automatic non-return valve engineered for demanding industrial, commercial and cryogenic applications. It featuresread more
A sewer backflow preventer – as the name suggests – is a device that will keep sewage from back along the sewer system into your home. They are surprisingly simple devices, which function as a valve....
Dec 01, 2016 · This can be prevented with a sewer check valve, and this video shows how simple it is. Typically, the wastewater leaving the house goes in one direction, from the house to the street,...
These valves are used in drainage pipes where reversal of flow causes the valve to close and cut off the flow. It is also known as a Back Flow Valve, and is often used to prevent sewage from flowing...
The installed cost for a sewer line check valve (backwater valve) is the sum of parts plus labor and ranges from $1000. to two or more times that depending on just what is required. For a ballpark...
More simple types of valves are called flap or check valves. They open to allow sewage to flow out, but then close to prevent the sewage from flowing in the reverse direction. They operate...
Aug 18, 2011 · A backwater sewer valve, also known as a sewer check valve, is a simple fitting that contains a one-way flapper that quickly closes to prevent back-ups as described above. Why a...
