and gas valve sequencing to ensure precise burner operation

resistance drops—allowing the boiler’s control logic to modulate firing rates and maintain supply water setpoints without short-cycling

Its durable construction is built to withstand the high-cycle thermal stress common in commercial heating environments

meaning it meets or exceeds the technical requirements of the original part

Helps maintain HVAC system performance and temperature control

ASCO 8210G35 Valve 321042-401 and gas valve sequencing toThe ASCO 8210G35 is a high performance 2 way normally open solenoid valve designed for reliable fluid control in demanding industrial and HVACR environments. Engineered with a durable brass body and NBR seals, this pilot operated valve provides a robust solution for managing air, water, and light oil. With a 3 4" NPT connection and a substantial 5. 5 Cv flow coefficient, it ensures efficient high flow operation, supporting up to 295,000 BTU hr for gas