Replacement Unloader Valve for Rotary Air Compressor Parts 1622348880

Description：

When the desired pressure is reached, the compressor will go in 'unload' mode: the unloader valve will almost completely close the air intake of the compressor. This way, no more air can be sucked in and compressed, so the compressor is basically just turning around, doing nothing. At the same time, the pressure that is still inside compressor element is released through a small hole (you will hear a sssssshhh sound).

Note that there is always a small hole in the air compressor unloader valve, so it will never close 100%. This is to make sure there will be enough oil flowing for lubrication and cooling.