Air Compressor Gauge Leaking

If air is leaking from the unloader valve when the air compressor is stopped that points to a problem with the compressor tank check valve not seating properly or its failure.

Air compressor gauge leaking.

Record the time it takes to load and unload the compressor. To do this operate the compressor in a load no load or start stop mode. Most regulators have a diaphragm inside. If your air compressor is leaking water it could be due to a bad drain.

When the air compressor reaches the normal cut out pressure and stops but you notice while the air compressor is off that air is leaking out of a valve attached to or perhaps inside of the air compressor pressure switch. The compressor might even automatically restart just to counter the situation. To gauge the effect of an air compressor leak you can measure your plant s leak load. What you need to do in this situation is pinpoint the source of the leak.

If you plug in the compressor the pressure switch response to the air leak and dropping compressor pressure will be to start the compressor again. The scenario that concerns us is one where air can be felt blowing out of the air regulator and this leaking air continues whether the air compressor is running or has reached cut out pressure and stopped. Compressor is constantly leaking. It will load or unload based on the demand of.

It doesn t typically matter if the gauge is a 1 1 2 diameter face a 2 face diameter or a different size gauge face entirely yet buying the replacement gauge that is the same size as the one that you are replacing on your air compressor helps ensure that it will fit in the same space on that compressor. Soon if the air compressor is plugged in the pressure switch will react to the falling tank pressure and start the. In other words air leaks out of some part of the regulator all the time there is air in the tank. Unloader valve is leaking air.

If the air is leaking from the unloader valve then see the page under fixing compressor problems about air continuously leaking from the unloader valve for. The valve on the outside of the pressure switch may look something like the one in the image. If you shut down the compressor when the tank is filled with air and then find that the pressure gauge is showing a drop in pressure you know that the compressor is leaking air.