Square D by Schneider Electric 9013FHG54J59M1X Air-Compressor Pressure Switch, 175 psi Set Off, 40 psi Fixed Differential, 4-Way Flange, 2-Way Release Valve, Auto/Off Cut-Out Lever
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A differential is the difference between the cut on and the cut As such, if it's set to cut in at 135 psi, you'd use 175 psi as the Off pressure. If you have a differential pressure of 75 psi, you will need a different type of switch.
Selected User Reviews For Square D by Schneider Electric 9013FHG54J59M1X Air-Compressor Pressure Switch, 175 psi Set Off, 40 psi Fixed Differential, 4-Way Flange, 2-Way Release Valve, Auto/Off Cut-Out Lever
There was a crucial difference between the mount and the old generic ones. On the top of the tank there is one blind screw hole you can use to mount it. If I can, I will re-write it You should mount it on the compressor's front. During the modification of the unloader valve, I had to adjust it so that the lever that actuates it wouldn't keep pressing down on the eventually switches the tank back on due to the leak. )
Unloader valve is a compression type fitting not a quick-disconnect, so if you need additional 1/8" compression fittings, you can pick them up at Home Depot.
Using this, I replaced the safety / pressure switch on an old Bendix Westinghouse 80 gallon air compressor that was built in 1941. It was easier to plumb the system when the multi port air fittings were connected to a homemade bracket after it was attached. A pressure cutout that can be set to a specific pressure is also good. That old a compressor is, the more difficult it is to find spare parts. I love it.
In any case, from now on, March 8, the contacts will no longer stick and the return window will close. Instead of spending the same amount on this one, we could have bought three cheaper ones.
Thanks a lot! Unlike the cheap one, this one did not burn out after two days.
I appreciate it.