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This is an SPDT (Single Pole Double Throw) control
the ZB series is specifically engineered for medium/high temperature refrigeration and process cooling
The VM2327 provides an equal percentage flow characteristic when used with its compatible modulating actuator
Common Questions What is the maximum inlet pressure for the Sensus 143-80
Reznor 193811 Pressure Switch 321894-709 This is an SPDT (SingleThe Reznor 193811 Pressure Switch is a critical safety component engineered for precision monitoring of combustion air and venting pressures in commercial and industrial heating systems. As a genuine Reznor OEM pressure switch, it features a Single Pole Double Throw (SPDT) configuration, allowing for versatile control of both normally open and normally closed circuits depending on the system's differential requirements. This specific model is equipped