Anti-syphon valve

[dataylor]

I need to prevent a hypochlorite tank emptying if the outlet line breaks, I have used a wallace and tiernan suction demand valve in the past but they have stopped making it. The valve would sit between the tank outlet and the pump suction. can anyone help?

 

[Chris73]

How about a Check Valve?

 

[stanier]

In the petroleum industry there are valves known as excess flow control valves for this very purpose. Contact your Chicago Bridge Office and they may recommend a supplier in your area. Also try Whessoe or other tank fitting suppliers. They will likely have corrosion resistant materials for this service.

 

[camabee]

Try

http://www.primaryfluid.com

- back pressure valves