McDonnell & Miller TC-4 Valves 30067439-890 and HLC2510K without requiring wiring

and HLC2510K without requiring wiring modifications

making it a versatile stock item for modern low-GWP retrofits

reducing unbilled return calls

consider the A19ABC or A19AAF series depending on the required setpoint range

and one normally closed

McDonnell & Miller TC-4 Valves 30067439-890 and HLC2510K without requiring wiringFor industrial boiler applications requiring precise low water cut off (LWCO) verification, the McDonnell & Miller TC 4 Test and Check Valves (Part Number 195000) provide a critical interface for maintenance and safety compliance. This 1" NPT dual valve set is engineered specifically for use with McDonnell & Miller controllers, allowing technicians to isolate the water column and simulate low water conditions without draining the entire system.