Watts 0274426 Valve 326058-757 Use a manometer to verify

Use a manometer to verify the bypass opens only when the smallest zone is calling

using this direct OEM part eliminates mounting footprint issues often found with universal alternatives

For technicians performing a furnace repair or preventive maintenance

What is included in the ASCO 304-359 Rebuild Kit

Watts 0274426 Valve 326058-757 Use a manometer to verifyThe Watts 0274426 (Series 174A) is a heavy duty 3 4" bronze boiler pressure relief valve engineered specifically for high capacity protection in hot water heating systems and domestic supply boilers. Rated for a 33 PSI set pressure with a massive steam discharge capacity of 695,000 BTU hr, this valve is a critical safety component designed to prevent catastrophic over pressurization. It features a rugged bronze body and a stainless steel spring for