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this module provides a 90 to 250 psi setpoint range and a field-adjustable 10 to 100 psi differential
Deep-pleat 5-inch design increases the filter surface area
Restores sensitive proportional water feeding
including 3 HP motors at 480V and 20A ballast applications
The 180-degree "pigtail" design is optimized for vertical orientation to ensure the condensate remains trapped in the bottom of the loop
McDonnell & Miller 51-S-2 Switch R-22 this module provides a 90The McDonnell & Miller 51 S 2 is a heavy duty mechanical water feeder and low water cut off (LWCO) designed for low pressure steam and hot water boilers. Engineered for systems with a maximum vessel pressure of 35 psi, this unit features a snap acting SPDT switch that ensures positive electrical contact for burner control or alarm signaling. The 1" NPT connections allow for straightforward integration into existing boiler piping, providing a reliable