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Square D Unloader Valve PS2020RV - $17.11

Pressure Switch Unloader Valves

Product Details
Square D
Brand: Square D
Part Number: PS2020RV

PS2020RV - Unloader Valve
Description:

This is located on the side of the pressure switch. If your valve is attached to your switch by inserting through a hole on the side bracket, then this is your style. Order this if your valve is broken. If this valve leaks continuously after it shuts off, then don't order this, order a check valve on the check valve page. It backfeeds this valve when defective giving a false sign that this needs to be replaced.

These valves attach to the pressure switch and bleed off or "unload" excess air in the lines and off of your pump head so your air compressor can easily start up. This is especially necessary after the unit reaches its max pressure and shuts off; the schrader valve is tripped by a lever on the pressure switch, which opens the valve and bleeds the air from the unloader tube and discharge tube. If air leaks from this valve constantly after the units shuts off, replace your check valve, not the unloader valve.



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