Question about NRS Plumbing
How to adjust the pressure the model above
Posted by Anonymous on
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Posted on Jan 02, 2017
The pump is equipped with a pressure switch.It is a rectangular thing on the discharge side of the pump. If you open its cover, you will see 2 springs with turning bolt on top. The larger spring controls the operating pressure (pressure where you want the pump to stop), and the other one is for the pressure differential (the difference between the pressure you want to stop and the pressure you want to make the pump run again). Usually, the springs are graduated. just turn the adjusting screws to the desired operating pressure and desired differential. For example you want to stop your pump at 40 psi and run it again at 30 psi. Adjust the larger spring to 40 and the smaller one to 10.
Posted on Jun 11, 2009
You can try running a heavier Gage or shorter cord to the genarator. If that's been done try useing a power suppley box commeing from your gen. not a surge protector this will have battries inside it, doing this will cutt down on electrical resistance. If those don't work you will need a bigger gen. The problem is the amprage is to low, one more thing, look in to a inline a/c compasitor
Posted on Apr 21, 2010
Testimonial: "thanks for the very prompt reply and the information., i will check out your suggestion/s and see how we go. thanks again.."
your pump should have a 20lb seperation ie. pump turns on at 20lb and off at 40lb or on at 50lb off at 70lb. under the cover of the switch theres two screws with springs under them.dont mess with the small one.the large one if you screw it down (right) will increase the pressure while maintaining the 20lb separation. one thing to keep in mind its fine to adjust the pressure BUT at the same time the air pressure in the tank needs to be adjusted to two lbs below the cut in pressure of the pump.
Posted on Jan 18, 2011
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