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Compressor pop off valve pops off before compressor shuts down,is rhere a way to file points or service pressure switch?

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What kind of Air Compressor do you have?
If it is a Rotary screw oil flooded compressor You need to check the oil separator it may be clogged, and needs replacement.
Regards
Ashfaq

Posted on Jul 22, 2010

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6ya6ya
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Posted on Jan 02, 2017

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I have a Dewalt model D55166. It will not shut off when it reaches the maximum allowed air pressure. What could cause this?


If safety pressure release valve pops open then electric pressure switch is bad, however if compressure keeps running and never pops safety valve then most likely tubing / joint leaks or cylinder / ring worn out. Spray soapy water on all joints and drain valve , if no leaks suspect cylinder. Good luck

Feb 23, 2015 | Dewalt Air Tools & Compressors

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REPLACED THE CONTROL SWITCH W/REGULATOR ON/OFF SWITCH. NOW IT RUNS BUT THE PRESSURE RELEASE VALVE IS POPPING. DID NOT HAVE THAT PROBLEM PRIOR


The pressure switch shuts the motor off when a designated pressure is reached. If you took that unit off then it wont shut off and builds pressure until the safety valve opens.

Jan 09, 2015 | Air Tools & Compressors

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My D55141 heavy duty 2gal (7.6L) 150 psi max builds pressure up to around 150 releases pop off valve then keeps running, what causes this problem?


The pressure switch is either out of adjustment or has failed. The compressor should shut off at a much lower pressure than the safety valve (~100 psi)

Nov 20, 2014 | Air Tools & Compressors

2 Answers

POP OFF VAVLE ON HEAD KEEPS POPPING UP


The over-pressure relief valve may be defective if the valve is opening before the desired tank pressure is reached. If not, then the shut-off pressure adjustment (if there is one) may be set wrong. You'll need to find out from the manufacturer exactly what static tank pressure the compressor is designed to provide and then determine if it is working correctly. If so, then the relief valve might be defective. DO NOT attempt to defeat the relief valve under any circumstances - it can result in compressor damage or a dangerous tank failure.

Oct 06, 2014 | Porter Cable 175 PSI 80 Gal. Oil-Lube...

1 Answer

Can I adjust the tank pressure on a Husky 1506 compressor. pop off keeps engageing, so I need to adjust so that compressor shut off automatically


Before you change any parts, check that the pop valve is not faulty. Look closely at the pop valve to read set release pressure. If the valve is releasing before marked reading, replace valve instead to one slightly higher. The pressure may or may not be adjustable at the switch (need to replace the switch) depending on switch installed at the factory (parts list does not give enough information). If your switch has a remove-abel cap with adjustment screws/nuts, post again with model number of switch for info on adjustment. Good luck

Oct 06, 2011 | Campbell Hausfeld 5 Peak / 1.7 Running HP,...

1 Answer

I have a central pneumatic aircompressor with a 21 gallon tank.It pumps up to 120psi then pops off down to 80psi and goes back to 120psi...back and forth... never stoping...could it be a bad pop-off valve?


I would first find out what pressure the compressor is supposed to shut off at. If it is supposed to shut off at lets say 110 then the pop off valve is doing its job you have to reset the pressure switch so it shuts off less than 120 pounds.

Mar 16, 2011 | Air Tools & Compressors

1 Answer

Pop off valve on return line leaking compressor keeps running turn compressor off stops leaking whats up?


Once the pop off valve reaches its opening point, it will stay open as long as the pressure is above that point. When you shut the compressor off, the pressure leaks down until the pop off valve closes. Sounds like the pressure regulator is set a little too high. If you can turn the regulator switch down, it should fix it.

Cabinetman54

Nov 18, 2009 | Air Tools & Compressors

1 Answer

The compressor relief valve keeps popping, compressor runs


What pressure is it popping off at? You might have to adjust the pressure switch to a lower setting.

Apr 01, 2009 | Campbell Hausfeld 5 Peak / 1.7 Running HP,...

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