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CSD1 Compliance: Meets essential industrial standards for boiler low water cutoff (LWCO) protection
this straight-through thermal expansion valve provides the reliability needed for light commercial and residential HVACR demands
If you are servicing an O-series normally open valve
like the 19-KEDA-15
McDonnell & Miller 64 Low Water Cut Off R-410A CSD1 Compliance: Meets essential industrialThe McDonnell & Miller 64 (Part Number 143600) is a heavy duty mechanical low water cut off engineered for reliable water level regulation in residential and commercial hot water and steam boilers. Designed for systems with a maximum boiler pressure of 50 PSI, this auto reset control features a 1" NPT threaded connection for seamless integration into equalizing piping. It utilizes a packless bellows construction and double pole, single throw (DPST)
US$ 39.95
US$ 37.95
US$ 109.00