Description
The Xylem-McDonnell & Miller 150S-M-MD Max Diff Snap Action 172807 is a switch found in HVAC equipment, specifically Xylem-McDonnell & Miller’s 150S-M-MD pumps and valves. It is a pressure switch that measures the pressure differential between two places in a system. When the pressure differential exceeds a certain threshold, the switch sends a on or off signal, regulating the flow of water. This helps to maintain safe water pressure levels and protects the equipment from potential harm. The 150S-M-MD Max Diff Snap Action 172807, for example, can be used as a boiler’s low-water cut-off switch. If the water pressure falls below a safe level, the switch will turn off the boiler to prevent overheating and damage.
