Spence Engineering D20150 Pilot 30067439-890 and WH-502C units

and WH-502C units

Precision Sealing: The saturated nitrile paddle ensures 100% bubble-tight shut-off (ANSI Class IV) for energy-efficient operation

Maintenance Efficiency: Features a union solder connection that allows the valve body to be removed for service without cutting existing copper pipe

this direct-acting solenoid valve is designed for high cycle life and minimal maintenance

this replacement damper motor provides the reliable mechanical force required to restore legacy system performance efficiently

Spence Engineering D20150 Pilot 30067439-890 and WH-502C unitsThe Spence Engineering D20150 Pilot is a heavy duty, spring operated pressure reducing pilot designed for precise steam pressure regulation when paired with a Type E or Type C main valve. This cast iron pilot features a 20 150 PSI spring range (designated by the black spring), making it a standard choice for high demand industrial and commercial heating systems. Built with a normally closed, packless construction, the D20150 ensures accurate pressure