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Stevenson Plumbing and Electrical Supplies
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Brass 15mm double check valve - a double check valve is a backflow prevention device designed to protect water supplies from contamination. It's often a local authority requirement in plumbing installations.
A double check valve has two internal, spring loaded, non-return valve mechanisms. This employs two operating principles: firstly one check valve will still act, even if the other is jammed wide open. Secondly the closure of one valve reduces the pressure differential across the other, allowing a more reliable seal and avoiding even minor leakage. The screw in the middle of the valve is a test point for monitoring correct operation of the check valve.
15mm compression pipe connections on each end.
Product Code: FOF
EAN (barcode): 5054480384629
Brand : Generic
Average Review Score: 5 based on 1 reviews
100% happy. Quality and very fast delivery
IM :: 28 Apr 2014, 09:36
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