Pressure changer
Pressure changer
(OP)
Could somebody please tell me how I can vary (increase/decrease)the pressure in a pump/motor setup to compensate for the high and low pressures at the various operating speeds.
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RE: Pressure changer
RE: Pressure changer
RE: Pressure changer
RE: Pressure changer
Q: flow
H: head
P: Power
N: speed
subscript
n:nominal
x:selected spped
Qx/Qn=Nx/Nn
Hx/Hn=(Nx/Nn)^2
Px/Pn=(Nx/Nn)^3
You can get variable frequency control for all pump sizes allthough the (motor control) priciple may vary.
Grundfos (eg) deliver small variable frequency control pumps with build in control, check their web page: www.grundfos.com
Best regards
Morten