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ASSE Standard 1035-2008 Performance Req for laboratory Faucet Backflow Preventers

ASSE Standard 1035-2008 Performance Req for laboratory Faucet Backflow Preventers
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These devices are designed to protect the potable water supply from pollutants or contaminants that enter the system by backflow due to backsiphonage or backpressure. This standard applies only to devices classified as backflow preventers designed for installation on laboratory faucets on the discharge side of the last shut-off valve. They are not for use under constant pressure conditions. These devices consist of two independently acting check valves, force loaded or biased to a normally closed position and between the check valves a means for automatically venting to atmosphere, force loaded or biased normally open position.


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