Kunkle Valve 6021FET01-AM0150 Relief Valve 30067439-890 the internal contacts have likely

the internal contacts have likely failed and the unit requires replacement

Field-Selectable Voltage: Supports both 120V and 240V AC inputs

36" WC rating

This HVAC temperature control component is essential for technicians looking to optimize thermal efficiency and extend the service life of high-capacity boiler systems up to 150 kW

eliminating the need to drain the system

Kunkle Valve 6021FET01-AM0150 Relief Valve 30067439-890 the internal contacts have likelyThe Kunkle Valve 6021FET01 AM0150 is a heavy duty ASME Section I steam pressure relief valve designed for high demand power boiler applications. Built with a 1" Male NPT inlet and a 1 1 4" Female NPT side outlet, this bronze safety valve is factory set at 150 PSI to ensure reliable overpressure protection. The 6021 series is distinguished by its Teflon (PFA) seat insert, which provides superior leak free performance and prevents the disc from sticking