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This kit contains the rubber parts for the repair of the 8 inch Watts backflow preventer relief valve
This Watts high volume roof drain is manufactured from epoxy coated cast iron for long life and durability
Specifications Body Material Lead Free Brass Brand Watts Buy American Act Compliant YES EAN 098268584752 Inlet Connection Size 1/2 IN Inlet Connection Type Male Threaded Inlet Thread Type NPTF Lead Free YES Maximum Working Pressure-PSI 125 Outlet Connection Size 1/2 IN Outlet Connection Type Female Threaded Outlet Thread Type NPTF Part Number 0121436 Pressure Range 0 to 125 PSI Pressure Relief Setting-PSI 125 Series LF53 Specification Sheet - LF53
this unit has a 6 inch cast iron pipe size (CIPS) coupler for easy connection to the underground supply (AWWA C900 PVC) and 6 inch ductile iron pipe industry standard grooved-end connection (AWWA C606) on the building side for easy connection to the overhead fire sprinkler system
Watts 757DCDA-DOSY-GPM 3 - Part of the 757DCDA Series mainline-siltfence This kit contains the rubberThis 3 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non potable quality, but not toxic, from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards such as on fire