McDonnell & Miller TC-4 Valves Els PW 17895 Maintaining this distance is critical

Maintaining this distance is critical for consistent arcing

System Integrity: Prevents heat exchanger cracking by enforcing strict thermal boundaries

This board is technically identical to the 8612-012 model

the assembly is rated for media temperatures up to 250°F (121°C)

this unit offers advanced staging for systems requiring two heating and two cooling stages

McDonnell & Miller TC-4 Valves Els PW 17895 Maintaining this distance is criticalFor 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.