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This thermostatic expansion valve features a 3/8" x 1/2" ODF (Outside Diameter Female) sweat connection
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Zinc-dichromate plated steel construction ensures maximum durability against oxidation
McDonnell & Miller 157RD-1 Replacement Casting THPU32HP7Y This thermostatic expansion valve featuresThe McDonnell & Miller 157RD 1 Replacement Casting is a critical component for maintaining the integrity of 157RD Series low water cut off and pump controller units. This heavy duty replacement body allows technicians to restore a boiler water level control system without the expense of a full valve replacement. Designed for high pressure steam applications, this casting accommodates the dual switch mechanism used for low water cut off and pump
