Watts 0274934 Valve 30067439-890 Robust construction provides reliable low-temperature

Robust construction provides reliable low-temperature limit sensing in high-vibration rooftop environments

maintaining the necessary milliwatt output for effective microbial neutralization

High-Contrast Grid: Khaki grid lines provide clear visibility for HVACR system diagnostics and reporting

or wastewater sumps requires high-durability components

Wide Operating Range: Fully adjustable from 50°F to 600°F

Watts 0274934 Valve 30067439-890 Robust construction provides reliable low-temperatureThe 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