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The 5-foot capillary tube and remote sensing bulb provide the reach necessary for proper placement on suction headers
Is this regulator suitable for indoor installation
With a robust condensate capacity of up to 5
making it a reliable choice for main burner and pilot load applications
McDonnell & Miller 157S-R Controller 30067439-890 The 5-foot capillary tube andThe 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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