Whether you are maintaining vortex dampers or complex air handling units

000 BTU/hr while maintaining a compact profile for tight manifold installations

It maintains similar mounting footprints while offering improved brushless DC motor technology for more efficient operation

the valve remains at full flow until pneumatic pressure is applied

This component is the designated replacement for 635-100-022

McDonnell & Miller 157S-R Controller Els PW 17895 Whether you are maintaining vortexThe 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