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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
The Spirax-Sarco 54749 Kit is a field-proven complete valve mechanism kit engineered specifically for Float and Thermostatic (F&T) steam traps
The unit is housed in a rugged zinc-plated steel enclosure that protects the SPDT contact arrangement and silicone diaphragm from the mechanical stresses of a mechanical room environment
minimizing mechanical wear and ensuring quiet operation during peak demand periods
Perform a resistance test with a multimeter
McDonnell & Miller 157S-R Controller Els PW 17895 The Spirax-Sarco 54749 Kit isThe McDonnell & Miller 157S R (Part Number 176220) is a heavy duty, float operated combination low water cut off and pump controller designed specifically for steam boilers with an integral water column. This model serves as the upgraded direct replacement for the McDonnell & Miller 157 R, transitioning from older mercury switch technology to reliable, bimetal snap acting switches for enhanced safety and modern compliance. Built with a corrosion
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