Watts 957-OSY-GXG-FS 4 - Part of the 957 Series Z100F-8NH cover O-ring and sensing passage

cover O-ring and sensing passage O-ring

The maximum operating temperature is 300 F (204 C) at 300 psi (21 bar) or 400 F (204 C) at 200 psi (14 bar)

UPC - 098268018240

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 1 IN Outlet Connection Type Female Threaded Outlet Thread Type NPT Part Number 0009645 Series LFN55B-M1 Standard Reduced Pressure Setting-BAR 3

Watts 957-OSY-GXG-FS 4 - Part of the 957 Series Z100F-8NH cover O-ring and sensing passageThis 4 IN lead free stainless steel reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. It has OSY groove by groove gate valves that show if the valve is open or closed and prevent stem corrosion. The easy maintenance assembly consists of positive seated torsion spring check modules, bottom mounted differential pressure relief valve, FM UL