Wuxi Dongao Nonferrous Casting Co., Ltd.
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Pump Reverses Some Of The Hazards
- Jan 22, 2017 -

Pump reverse the reversal can be divided into active and passive reverse, causing damage are not the same.

Initiative to reverse, refer to the motor pump reversal is mainly motor wiring reversed led. Main hazards:

A, rotation to the requirements of the mechanical seal may be damaged.

Second, rotational requirements of sleeve lock, the impeller lock nut (also known as the impeller and CAP) may be loose. If the PIN is connected, then the impact is not great.

Passive reverse reverse drag refers to the pump motor. Poured some liquid into the pump outlet pipeline imports, causing pump to reverse, so as to drive the motor reverses (also need to consider if the motor loses power at this time). Main hazards:

A, rotation to the requirements of the mechanical seal may be damaged.

Second, rotational requirements of sleeve lock, the impeller lock nut (also known as the impeller and CAP) may be loose. If the PIN is connected, then the impact is not great.

Three, have balanced or balanced drum pump may damage the balance or balancing drum.

Four, causing water hammer and damage pump.

Five, multistage centrifugal pump (the guide vane) ease the resonance speed and damage pump. (The runaway speed of axial-flow pump pumps need to be considered)


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