Its internal Amodel flow-characterizing disk and graphite-reinforced PTFE seats ensure high rangeability and tight shutoff (ANSI Class IV)

The WHL1278 fits many Trane and American Standard air handlers

While the 97955 is a widely used venter assembly

For higher pressure requirements in the Sensus 243-8

it ensures that the start winding is protected once the motor reaches approximately 75-80% of its rated speed

A.J. Antunes JD-2-PURPLE Pressure Switch 318172-701 Its internal Amodel flow-characterizing diskThe A. J. Antunes JD 2 PURPLE Pressure Switch is a high precision, industrial differential vacuum and air pressure switch engineered for sensitive monitoring in HVAC and combustion safety systems. This OEM air proving switch features a specialized purple spring calibration, supporting an adjustable set point range from 0. 1 to 10 inches water column (W. C.). Designed with a single pole double throw (SPDT) snap action switch, it provides reliable auto