Watts 957NRPDA-OSY-LM 6 - Part of the 957RPDA Series ZC100F-8NH Viton® disc

Viton® disc

or wall hydrant

This cover repair kit is used to repair or replace the cover on a 2 inch lead free reduced pressure zone assembly used to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 1 1/4 IN Outlet Connection Type Female Threaded Outlet Shutoff Valve Type Quarter Turn Ball Valve Outlet Thread Type NPT Part Number T063233 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series LF007 Strainer No Technologies Freeze Detection Tradename None Specification Sheet - Freeze Sensor Connection Kit

This 1 IN lead free dual check valve backflow preventer helps prevent the reverse flow of polluted water from residential fire sprinkler systems from entering into the potable water supply

Watts 957NRPDA-OSY-LM 6 - Part of the 957RPDA Series ZC100F-8NH Viton® discThis 6 inch reduced pressure detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non potable quality 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. Extremely compact and lighter than traditional designs it is approved for horizontal N pattern installation.