McDonnell & Miller 193-A Controller 30067439-890 The assembly features a 42-inch

The assembly features a 42-inch capillary and a 3/16" x 15-3/8" bulb

an upright orientation is preferred

the neoprene material used in the MP516A diaphragm remains resilient under fluctuating temperatures

Is this the correct replacement for a normally open valve

McDonnell & Miller 193-A Controller 30067439-890 The assembly features a 42-inchThe McDonnell & Miller 193 A is a heavy duty combination low water cut off and pump controller engineered for commercial steam boiler applications. Designed for boilers with a maximum pressure of 150 PSI, this unit features dual snap acting SPDT switches for precise burner control and pump activation. The 193 A model utilizes alternate tappings to simplify installation on various boiler configurations. Its rugged float operated mechanism ensures