This pressure switch is designed for a 2 stage air compressor pumping up to 175 psi but can be adjusted anywhere from 100 200 psi.
Air compressor pressure switch adjustment square d.
Under a normally set pressure switch the pump should come on at 30 psi and shut off at 50 psi.
Brand new square d brand pumptrol air compressor pressure switch model.
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9013fhg42j59m1x 135 175 psi with unloader control valve and on off switch.
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In attempting to establish pressure settings higher than those from the factory a compressor may become unsafe and it surely will self destruct a lot sooner than expected.
If the pump is starting and stopping at too low a pressure turn the larger nut clockwise.
It does that by letting you adjust the cut in and cut out pressure.
There are 2 adjustment screws in the switch box that provide tension by springs onto a plate.
Square d by schneider electric 9013fhg12j52m1x air compressor pressure switch 125 psi set off 30 psi fixed differential 1 4 npsf internal 2 way release valve auto off cut out lever 4 6 out of 5 stars 133 ratings.
The pumptrol fhg12j52xbp air compressor pressure switch by square d is the most trusted brand in residential commercial and industrial air compressor applications.
The factory settings for your air compressor pressure switch are the correct settings.
Adjust just a little at a time and allow the pump to operate.
I have a square d 9013ghg2 switch 145 175 that i am trying to tune down to 120 150 because my newly installed air dryer is rate up to 150 psi.
One is larger than the other.
Watch this fix before you start buying parts.
A pressure switch of an air compressor helps to start and stop the compressor automatically.
Do i adjust the larger screw for cutoff and then the smaller for.
In this guide you can learn about air compressor pressure switch adjustment in the easiest way possible.
Your compressor is designed to run properly at those cut in and cut out settings.