![]() The higher the pressure, the lower the flow they will maintain.Īnd pumps don't "produce" anything, they put energy into water. The lower the pressure, the higher the flow they will maintain. ![]() They will pump more than rated capacity at less than 150 PSI. These are the performance points for the rating, but the pump will perform throughout, as well as outside, this range. At initial acceptance only, must be able to pump full capacity at 165 PSI N.P.P. Must be able to pump 50% capacity at 250 PSI N.P.P.Ĥ. ![]() Must be able to pump 70% capacity at 200 PSI N.P.P.ģ. (Net Pump Pressure is the difference between inlet pressure and discharge pressure, no matter whether inlet is positive or negative)Ģ. Must be able to pump full capacity at 150 PSI NET PUMP PRESSURE ![]() A pump's "rated" capacity is achieved by being able to perform 3 things (4 at initial acceptance):ġ.
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