Watts 0275174 Relief Valve R-22 Standardized Threading: Uses a 1-14

Standardized Threading: Uses a 1-14 UNC thread size compatible with standard Rotalock fittings and gaskets

While it can physically break a circuit

Diagnostic Reliability: Integrated Intellivent control provides clear feedback for faster troubleshooting in the field

ensuring seamless integration into the existing wiring harness

the 018F4100 is the direct replacement for 018F7683

Watts 0275174 Relief Valve R-22 Standardized Threading: Uses a 1-14For high capacity pressure protection in commercial and residential hydronic systems, the Watts 0275174 Series 174A provides a critical safety boundary for hot water heating boilers. This 1 inch NPT pressure relief valve is engineered with a rugged bronze body construction and is factory calibrated to a 75 PSI set pressure, delivering a substantial steam discharge capacity of 2,055,000 BTU hr. Its internal stainless steel spring and non metallic disc