Watts LFM116 GRV B 20 200 TC 8 Part of the LFM116 Series detectable warning mat finder The drain cover features an The drain cover features an open surface area of 45 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 6 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 0111884 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 This pressure relief control valve is designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot and throttle toward closed when upstream pressure falls below the adjustable setpoint