Watts 774-OSY 6 - Part of the 774 Series Drain Fitting The springs and diaphragm chamber

The springs and diaphragm chamber assembly is easily changed and the valve is simple to adjust when the need to quickly restore the regulator service is required

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 4 IN Outlet Connection Type Grooved Joint Outlet Shutoff Valve Type Outside Stem And Yoke Gate Valve Outlet Thread Type Does Not Apply To Product Part Number 0111646 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Series 957RPDA Strainer No Technologies Does Not Apply To Product Tradename None Specification Sheet - 957RPDA

and other expansive paved areas

and a brass drain plug

Watts 774-OSY 6 - Part of the 774 Series Drain Fitting The springs and diaphragm chamberThis 6 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated 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. It is ideal for protection at cross connections identified as non health hazard applications and from other contaminants