Watts 909RPDA-OSY-CFM-FS 3 - Part of the 909RPDA Series R304 Detectable Warning Surfaces It is ideal for applications

It is ideal for applications such as a zone control valve for space heating with hot water or steam and air conditioning with chilled water

Ductile Iron Dome

ZB415K-4IG

Replaceable check disc rubber

Watts 909RPDA-OSY-CFM-FS 3 - Part of the 909RPDA Series R304 Detectable Warning Surfaces It is ideal for applicationsThis 3 inch reduced pressure detector backflow preventer assembly prevents the reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. This assembly consists of an epoxy coated cast iron body, OSY resilient seated gate valves, captured spring check valves, replaceable stainless steel seats, top mounted test cocks, a pressure differential relief valve and