Watts 0274934 Valve 30067439-890 With electrical and thermal overload

With electrical and thermal overload protection including auto-reset functionality

never leave a unit running with a bypassed limit

featuring a field-adjustable regulator to match specific manifold pressure requirements

for 24 VAC circuits

Watts 0274934 Valve 30067439-890 With electrical and thermal overloadThe Watts 0274934, also identified as the Watts 174A 1 30, is a high capacity 1 inch ASME pressure relief valve designed specifically for hot water heating systems and domestic supply boilers. Engineered with a heavy duty bronze body and a stainless steel spring, this valve provides critical overpressure protection for equipment rated up to 1,005,000 BTU hr. The 174A series is the industry standard for contractors requiring a 30 PSI relief setting