Backflow assembly test cock check valve

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A double check valve or double check assembly DCA is a backflow prevention device designed to protect water supplies from contamination.Take a look at this photo click on to enlarge.This invention relates to testable potable water backflow prevention assemblies and the risk of contamination to a potable water supply they pose by virtue of the differential pressure gradient inherent to these devices and the ease with which one may access the water along the differential pressure gradient.We combine theory with practice to design and manufacture top quality, high performance backflow prevention assemblies and flow control products.Steve Fain.A backflow preventer is a device that allows the water to flow only in one direction preventing the water to flow backward direction.

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The purposes of this backflow prevention and cross-connection control program are as follows:.

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In order to repair any assembly, RP, DC, PVB or SVB, it is important that the repair technician first understand how the backflow prevention assemblies are supposed to work, so that when they are not working, the problem can be properly identified.Please make sure that you are posting in the form of a question.Skip navigation.

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