Watts 957RPDA-OSY-CFM-FS 8 - Part of the 957RPDA Series ZA100F-6NH single detector check valve for

single detector check valve for fire sprinkler systems is used in fire protection applications to detect leakage or unauthorized use of water in fire sprinkler systems

ZN453-3NH-6B

UPC - 098268659740

pre-charged to 40 psi

Watts 957RPDA-OSY-CFM-FS 8 - Part of the 957RPDA Series ZA100F-6NH single detector check valve forThis 8 inch reduced pressure detector backflow preventer assembly help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. Extremely compact and lighter than traditional designs, it is approved for horizontal installation. This assembly consists of a stainless steel body with a quick access sleeve, torsion spring check valves, resilient seated gate valves with outside stem and yoke, test cocks,