Watts 957ZRPDA-OSY-CFM 4 - Part of the 957RPDA Series dura-skrim-selector solder connections

solder connections

It provides continuous purging and venting of air in the system when installed with Watts Model ET expansion tank and Model FV4 float-vent

Specifications Body Material Ductile Iron Brand Watts Buy American Act Compliant NO Class Rating 125 or 150 Control Type Lever Handle CV Rating 135 GPM Disc Material Ductile Iron EAN 098268605945 Inlet Connection Size 2 IN Inlet Connection Type Wafer Lead Free Yes Maximum Operating Temperature-Fahrenheit 248 Maximum Working Pressure-PSI 200 Minimum Temperature-Fahrenheit 33 Operating Torque-Dry 214 in-lbs Operating Torque-Wet 134 in-lbs Outlet Connection Size 2 IN Outlet Connection Type Wafer Part Number 0525769 Seat Material EPDM Series BF-04 Silicone Free Yes Stem Shaft Material 416 Stainless Steel Valve Style Wafer Specification Sheet - BF-03-M2

It is used primarily on fire sprinkler lines when it is necessary to monitor unauthorized use of water and includes a cubic feet per minute meter that measures water flow

By using the inlet protection barrier you are limiting sediment from going into stormwater and helping to stop backups which could cause damage to your jobsite or residence

Watts 957ZRPDA-OSY-CFM 4 - Part of the 957RPDA Series dura-skrim-selector solder connectionsThis 4 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 Z pattern installation.