Pressure switch on a check valve?
Is the threaded pipe between the pressure switch and connects to the tank a check valve ?
Napa Performance series Air compressor air hose is popping off switch
Napa Performance series Air compressor snap in air hose is popping off and will not stay in place Mosel 82356Vat
I have a 5hp 230V 1pahase Napa Performance series Air compressor and I even have the owners manual. Napa does not sell parts for their compressors (wish I new that ahead of time) and the parts diagram does not even show the hose that goes to the bottom side of the pressure switch. Anyways, I have a 1/4 in hose that comes out of the center of the top part of the tank and it goes to the bottom side of the pressure switch. It is supposed to snap into an elbow with no threads. I lost one of the washers with teeth on it (there were 2 of them) and I have tried to find replacements, I even took the sleeve, the one washer and short piece of tubing into Napa and they looked at another Compressor and they did not know where to get the parts for this fitting. I think it goes, 2 teethed washers, a barrel sleeve and the a shoulder piece to push it all in straight. I hope this makes sense as It is late here and cannot take any pictures as it is dark. Any help would be greatly appreciated. Thanks
Condor Model MDR-11 switch Can't set high limit
MDR 11 Condor Pressure Switch Photo: http://www.vikinggroupinc.com/usrelated/general/pressureswitchadjustment.pdf
I have a compressor driving me crazy.
I cannot set the high limit, no matter what I do the @#$% thing blows the safety valve. This is the second pressure switch and second valve.
It's a Condor Model MDR-11 switch. I have turned the main pressure screw down and the differential screw as well (several times, almost to the point of threading out). No matter what still cuts on at 40, blows safety at high 120's (150 psi safety valve)
Shaun, if the PRV is supposed to blow at 150 PSI, I wonder why it lets go at the high 120's? That's not supposed to happen, and the PRV really has nothing to do with the pressure switch. Two separate issues.
You don't indicate what the normal cut in and cut out pressure settings for your compressor were before you changed the switch. That's important to know as you want to set the new switch to the same settings (or as close as possible) to the old.
As to the adjusting of the Condor MDR-11 switch, no point in retyping here what you can find at this site on page 3:
If the adjustment procedures do not adjust the pressure as needed, either the switch has failed, or, it's somehow installed incorrectly.
Air Compressor only re-starts when empty
by Steve Coats
Air compressor pressure switch
I have a small air compressor which has an issue with re-starting.
The unit does the following:
1. Starts up and builds up pressure to 6 Bar.
2. Once pressure reached compressor unloads.
3. I start using compressor but the pump only re-starts when the pressure falls to 0 Bar.
4. Repeat of 1.
There I cannot find a way of setting the minimum restart pressure.
Everything else works fine on the compressor