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this TRV valve adapter eliminates the need for full valve body replacements when upgrading hydronic heating systems
Running on a standard 24-volt actuation
which is critical for preventing condensation on the underside of the pan in unconditioned spaces like attics or crawlspaces
Common Questions: Can this be used on wet pipe systems
Reliable installation typically requires a 5/16" wrench (or TOOL-20-1)
McDonnell & Miller 157S-M Pump Controller Els PW 29614 this TRV valve adapter eliminatesThe McDonnell & Miller 157S M (Part Number 175402) is a professional grade combination low water cut off and pump controller designed for commercial and industrial steam boiler applications. This model is engineered with a built in water column and includes an integral manual reset mechanism, a critical safety requirement for many jurisdictional codes. By utilizing a durable monel bellows, the unit maintains high corrosion resistance and high