Dual Plate Check Valve
Dual Plate Check Valves Supplied Across Australia
Contact the DEWATER PRODUCTS valve division for Defender Valves on 08 6261 9967 based in Perth, Western Australia.
The dual plate check valve is named for the two discs it uses to block flow, dual plate check valves use a spring to move discs backwards either onto the seats to block reverse flow or off the seats to allow forward flow. Wafer or flange connections can be used.
Check valves protect your drive system and pump by preventing the fluid from flowing in the reverse direction. Because the dual discs only open in one direction, fluid is only allowed to travel in the desired direction. The force of the fluid opens the discs, which are attached to a spring with a self-shutting function to ensure the valve is closed when nothing is in the pipeline. The spring is designed to ensure it does not hinder flow efficiency when fluid is travelling through the pipeline.
The spring is an important part of dual plate valves and its lifespan will be greatly increased if it is made from 316 stainless steel. The seal is also imperative for the prevention of fluid leaking past the discs; seal and seat materials can be resilient or hard-wearing depending on the application. Viton is an excellent example of a hard-wearing material appropriate for this valve.
Based in Perth, Dewater Products supplies pipeline equipment and valves all over the country. Our dual plate check valves come in DN40 to DN1200 sizes, wafer and flanged designs, and classes such as Table D, Table E, ANSI 150LB, ANSI 300LB and more.
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