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

Precision Airflow: Sustains 1650 RPM output to ensure the blower wheel delivers the correct CFM across the heat exchanger

allowing for efficient integration into standard pneumatic tubing layouts

When replacing these components

Whether you are performing routine preventative maintenance or addressing a solenoid rebuild for model 310-422

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