Products & Solutions

PRESSURE CONTROLS


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P74

Differential Pressure

 


The P74 series of differential pressure switches incorporate two opposing pressure elements and an adjustable range setpoint spring with a calibrated scale.

The control switches at the indicated setpoint on an increase in differential pressure and switches back to the normal position when the different pressure decreases to the setpoint less the mechanical switching differential.

 
P74

FEATURES
• Heavy duty pressure elements.
• These controls may be used in combination with series P28 lube oil
protection control on two compressor, single motor units.

APPLICATION
These controls are designed to sense pressure differences between two points
and may be used as operating or limit controls. Typical applications are to detect
flow across a chiller or water cooled condenser, to detect flow in a heating system
and sensing lube oil pressure differential on refrigeration compressors.





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P74
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