Series 3000SS Double Check Detector Assemblies prevent the backflow of fire protection system substances from being pumped or siphoned into the potable ...

TEK090 Description: TEKMAR 090 SNOW/ICE SENSOR Extended Description: Supplier Part Number: 090. Your Price: Call for Pricing Stock: 2. Availability: Usually ...

Zurn Wilkins 975XL2 1 in. Cast Bronze FNPT Backflow Preventer Part #W975XL2G Item #3908913 Mfr. Part #1-975XL2 (0) $779.51 EACH

For a client in urgent need of a reliable reverse flow prevention solution, our experts were able to pick from a large on-site stock of products to provide a fast turnaround on a set of duckbill check valves.

A KSB balancing valve enables an optimum volume flow rate with minimum pressure losses and optimised pump performance. Find out more.

Both valves are suitable for wastewater, and the choice will depend on the final system design and usage. The ball check valve is self-cleaning by design, although generally rated to lower working pressures.

Find the Watts LFRK 909-VT 4-6 4 To 6 In Backflow Repair Kit, Lead Free, 909-Vt for sale here. Trusted plumbing supply online distributor.

Backflow Preventer Valve, 1" FPT, No Strainer · WS009QT-1. Valve, RPZ Backflow Preventer, 1IN, Less Strainer ; Backflow Preventer Valve, 1-1/2" FPT, No Strainer.

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• Spring check valve - uses a spring-loaded disc that sits on a seat in the valve body and is held in place by a spring. Pressure from fluid flow in one direction pushes the disc away from the seat and allows fluid to pass. When the flow stops, the spring forces the disc back onto the seat.

A spring check valve features an axially guided sprung loaded disc to prevent reverse flow. Swing check valves offer an obstacle-free passage and suitable for clean and wastewater applications.  Spring check valves are only suitable for clean media’s due to the disc in the flow path.

Replacing legacy valves requires careful analysis of existing infrastructure as well as a comprehensive knowledge of existing products.

Preventing reverse flow is a crucial aspect of most waterworks applications in order to protect water supplies, pipelines and pumps alike.

All check valves are designed to prevent pipeline backflow and prevent water contamination, equipment damage and flooding; there are different models that are designed for optimal performance in varying applications:

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• Twin plate check valve - two half-circle shaped plates are hinged and located inside the valve body, the plates swing open to allow flow in one direction, swinging shut if flow reverses.

A Backflow Prevention Device acts as a non-return valve to prevent mains water contamination from soils or biomatter that may be sitting in your irrigation line. These devices are a requirement by law for all automated irrigation systems on Sydney mains water. Check with your local council for backflow requirements.

Check valves, also known as non-return valves, only allow liquid to pass through in one direction. Preventing backflow, or reverse flow, of liquids is essential to protecting pumps and other components from damage, protecting buildings from flooding and preventing clean water contamination.

• Swing check valve - uses a swinging disc that is pushed open by fluid flow in one direction. When the flow stops or reverses the weight of the disc swings it back into a closed position.

The normal lifespan for these devices is 5-6 years. One downside is that they typically fail gradually and, in doing so, tend to allow more hot water through ...

• Recoil check valve - Similar to a swing check valve, however the recoil valve has an inclined seat and body profile to reduce the damaging effects of water slam.

In order to prevent this from happening again a £5million flood defense scheme was initiated to protect over 50 homes situated on the river bank, with essential non-return valves supplied by T-T Flow.

With over 35 years of innovative valve design experience, our check valves (also known as non-return valves) feature lightweight and robust construction for long and reliable operations. Our range of automatic check valves is suitable for use in potable, clean and wastewater applications; with swing, wafer, axial, ball, non-slam recoil and backflow preventer designs available.

1. Conventional Gutters The typical pitched roof can usually use gravity for all drainage purposes. On a pitched roof, water simply glides off and into gutters.

• Double hinge flap valve - simple valves featuring a flap attached with two hinges that allows flow in one direction and closes when flow stops or reverses.

• Ball break valve -  a self-acting valve that uses a ball to prevent backflow.  As the flow subsides the ball falls back into the valve seat, creating a seal and stopping any media from passing in the wrong direction.

Thankfully for a UK water provider, the T-T Flow team were on hand to fabricate the perfect check valve replacement for their clean water pumping station.

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Swing check valves are generally installed horizontally, but they can be installed vertically depending on the required set-up. Contact our experts for more information.