Choice of test drive motor for the pump head of self priming pump (selection basis):
1 according to the maximum power and speed of the pump to choose, and appropriate allowance.
2 pay particular attention to the density of the use of the pump.
3 if the test pump drive motor and pump has been installed, but also to re check the power with the right.
Selection of coupling for testing (selection basis)
1 pump shaft coupling of the motor end of the coupling of the outer diameter to be the same, the maximum torque should be consistent, and should be greater than the maximum torque of the pump test.
2 pump and motor end of the coupling of the inner hole, the maximum size should not exceed the provisions of the standard.
3 when measuring the input power of the pump by using the torque and rotating speed, it is better to use the elastic pin coupling or the spring plate coupling. Claw type couplings are not used as far as possible. If the input power of electric dynamometer measuring pump, can use the claw type coupling.
