Watts 174A-90 2 - Part of the 174A Series

Watts 174A-90 2 - Part of the 174A SeriesThis 2 inch boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non metallic disc to metal seating, stainless steel spring, and test lever. It resists corrosive water conditions,

or decorative surfaces—ensuring seamless integration

2 1/2 inch Watts Model 77G-SS

UPC - 098268094374

UPC - 098268592665

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per meter and 131 GPM flow rate

50 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 1 IN Outlet Connection Type Female Threaded Outlet Shutoff Valve Type Quarter Turn Ball Valve Outlet Thread Type NPT Part Number F391009 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series LF909 Small Strainer No Technologies Flood Detection Tradename None Specification Sheet - Flood Sensor Connection Kit - Watts

This polyethylene sheeting features an internal scrim reinforcement that enhances its resistance to tearing and punctures

Features like four-corner grate lock-down and co-plane rail straps ensure structural integrity and durability in demanding installations

Dura-Coated cast iron body for long-term durability

relief valve cover O-ring

professional-quality drainage performance