Watts LF174A 125 FS 1 1/2 - Part of the LF174A Series roof-hatch-finder Unique built-in relief valve relieves

Unique built-in relief valve relieves pressure caused by ice formation

UPC - 098268566475

The Watts RD-970 is a perforated stainless-steel ballast guard designed for use with compatible roof drain systems

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 1 IN Outlet Connection Type Union Joint Outlet Shutoff Valve Type Quarter Turn Ball Valve Outlet Thread Type NPT Part Number 88004143 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Stainless Steel Series U009 Strainer No Technologies Flood Detection Tradename None Field Guide - Backflow Preventer Repair Parts 007 and 009

ZN1970-4NL

Watts LF174A 125 FS 1 1/2 - Part of the LF174A Series roof-hatch-finder Unique built-in relief valve relievesThis lead free pressure relief valve has a 1 1 2 inch NPTF female inlet and outlet and a 125 psi pressure relief setpoint. This valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features a lead free copper silicon alloy body, non metallic disc to metal seating, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert technology to detect excessive water