Utica-Dunkirk 1570001 Relief Valve 318820-201 this component is essential for

this component is essential for resolving pressure switch faults and "no heat" calls caused by vacuum leaks at the combustion blower motor interface

this snubber is a non-negotiable addition to ensure long-term system stability and reading accuracy

cracked plastic vanes

use the calibrated scale to confirm the Cut Out and Cut In points

as long as the 35/3 uF rating and 370V (or higher) voltage match

Utica-Dunkirk 1570001 Relief Valve 318820-201 this component is essential forThe Utica Dunkirk 1570001 Relief Valve is a critical safety component engineered for precise overpressure protection in hydronic heating systems and commercial boiler applications. As an ASME rated safety valve, this 3 4 inch NPT component is factory calibrated to a 15 PSI set pressure, ensuring immediate discharge when system limits are exceeded. Constructed with a lead free brass body and a corrosion resistant spring, the 1570001 OEM replacement