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reliable field swaps
OEM Precision: Guaranteed 150°F trip point ensures critical protection against heat exchanger stress and overheating
reducing mechanical linkage failures and streamlining the HVAC actuator replacement process
Common Questions & Troubleshooting How do I confirm the board is receiving power
The unit supports 4-20mA
Kunkle Valve 0537-D01-HM0100 Valve 30067439-890 reliable field swapsThe Kunkle Valve 0537 D01 HM0100 is a high capacity bronze safety relief valve specifically engineered for low pressure hot water boilers, heat exchangers, and generators. This 3 4" x 1" FNPT valve is factory set at 100 PSI and carries ASME Section IV and XIII "HV" certifications, ensuring rigorous compliance for commercial and industrial hydronic systems. With a certified steam capacity of 2759 lb h (2,758,900 BTU h), it provides critical
