Watts 0275824 Valve 321894-706 preventing back-siphonage and backpressure of

preventing back-siphonage and backpressure of non-hazardous substances

ensuring robust flame monitoring and preventing hazardous gas accumulation

including WeatherKing and Corsaire units

The kit includes color-coded needle valves and three 6-foot hoses with female-threaded swivel couplings

Limit switches are rated for specific temperatures and mounting positions

Watts 0275824 Valve 321894-706 preventing back-siphonage and backpressure ofEnsure critical over pressure safety for commercial heating systems with the Watts 0275824 (Series 174A M1), a high capacity 1 1 4 inch NPT pressure relief valve specifically engineered for hot water space heating boilers. This ASME Section IV certified valve is preset to 50 PSI and provides a discharge capacity of 2,459,000 BTU hr, making it a reliable choice for large scale hydronic applications. The bronze body construction is designed to resist