k = constant
n = pump speed or velocity (rpm)
With the discharge valve closed the torque amounts to 30 - 50 % of the nominal torque at full speed.
The torque at full load can be calculated as
T = 30 P / (π n) (2)
T = torque (kN m)
P = power (kW)
Piping systems and pumps - centrifugal pumps, displacement pumps - cavitation, viscosity, head and pressure, power consumption and more.
An introduction to Centrifugal Pumps.
Minimum continuous flow to prevent flashing in centrifugal pumps.
Centrifugal pumps and maximum shut-off head.
IEC and NEMA torque classifications of electrical motors.
Centrifugal pumps vs. positive displacement pumps.
Torque or moment - the tendency of a force to rotate an object.
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