double check valve

jofly24 · 28 Feb 2005

Hi everyone. Can someone please tell me what the difference is between a single check valve and a double check valve. What instances would these be fitted?

kevplumb · 28 Feb 2005

check valve = non return valve

single on tank fed supplies to stop backflow

double mains supply same reason

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double check valve

jofly24

kevplumb

DIYnot Local

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