Watts 957RPDA-OSY-LM-FS 4 - Part of the 957RPDA Series HDPE Multi-Orifice design

Multi-Orifice design

UPC - 098268452235

This pressure relief valve has a 1 inch NPTF female inlet and outlet and a 45 psi pressure relief setpoint

Used in commercial and residential applications

This kit includes stem bushing assembly

Watts 957RPDA-OSY-LM-FS 4 - Part of the 957RPDA Series HDPE Multi-Orifice designThis 4 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. It is ideal for protection at cross connections identified as health hazards such as on fire sprinkler systems and from other contaminants found at the service line entrance.