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Air-Con Pressure Control Regulators

Positive Control Regulators: The normally closed (NC, Positive Control) regulator is used to modulate the intake valve closed to control compressor output. The valve is installed so that it senses compressor output pressure. The NC regulator stays closed up to a pre-set pressure. Once the valve opens, a pressure signal is output to control the compressor.

Negative Control Regulators The normally open (NO, Negative Control) regulator is used to modulate the intake valve (or others) open to control compressor output. The valve is installed so that it senses compressor output pressure. The NO regulator stays open to a pre-set pressure sending the compressor output pressure to the control system. Once the valve starts closing, the pressure signal that is sent out, is proportionally decreased compared to the compressor output pressure.

 

Air-Con PR0988 Pressure Regulator Valve

Part #: PR0988
Positive Control Regulator, 6:1 Differential Gain
$63.04

Air-Con PR1102 Pressure Regulator Valve

Part #: PR1102
Negative Control Regulator, 4.5:1 Differential Gain
$68.29