Fire pump lift is insufficient

Shandong Hairui Zhonglian Pump Industry Co. , ltd. The fire pump that is a major produces manufacturer. When type selecting of client fire pump, manufacturer of my company water pump can provide the before-sales service such as price of fire pump model, fire pump, in order to offer client reference, and manufacturer of my water pump can provide the service of product of custom-built pump industry for the client. This product information is the knowledge that is not worth about fire pump lift:

The needle is insufficient to fire pump lift, a few kinds of possibility that do not go on lift reach a means of settlement:
In numerous user use fire pump often comes up against fire pump lift to go up not to go, the user looks for fire pump to produce manufacturer to solve directly, guide what go up not to go to water pump lift is water supply truly however end of insufficient, exit changes diameter processing has a large number of air inside antrum of excessive, pump not eduction, appear even the reason such as the wiring method with low wrong end.
Expert analysis gives method of 9 kinds of tests:
1) fire pump does not have affusion or do not have proper exhaust
Eliminate step: Examination pump case and entrance cop are all flood liquid.
2) way of fire pump roll is wrong
Eliminate step: Examine rotational way.
3) generation air or entrance cop have leak
Eliminate step: Examination entrance cop has the acupuncture point that do not have gas and ／ or air leak.
4) the filling in filling case or sealed wear away, in making air leakage enters pump case
Eliminate step: Check filling or sealed change by need, it is normal that the examination lubricates.
5) smoke those who send heat or inspiratory head is insufficient when volatile liquid.
6) electric machinery rotate speed is too low
Eliminate step: The wiring that checks electric machinery is correct, voltage is normal or the vapour lift of turbine is normal.
7) systematic peak of flow is too high
Eliminate step: The head that examines a system (grind especially loss) .
8) suck Cheng Taigao
Eliminate step: The only pressure head with existing examination (too small or too long meeting causes entrance cop very big grind loss) .
9) impeller or cop suffer
Eliminate step: The examination has trouble-free content.
Thank you very much to Shandong Hairui Zhonglian Pump Industry Co. , ltd. The visit of official website! Above is aboutFire pumpLift introduces insufficiently, still think to this problem like you deep one pace understanding, or the problem that has price of model of type selecting of product of other pump industry, water pump, water pump, water pump needs to solve, contact this water pump manufacturer please, my company returns production to suck pump oneself, welcome you at any time seek advice.