故障

產(chǎn)生原因

排除方法

水

泵

不

出

水

1．泵內(nèi)未注滿水

2．進(jìn)水管或密封處漏氣

3．水泵反轉(zhuǎn)

4．進(jìn)水管太長

5．吸程過高

1．往泵內(nèi)注滿水

2．檢修進(jìn)水管，排除泄漏

3．檢查糾正

4．縮短進(jìn)水管

5．降低吸程

出

水

量

不

足

1．葉輪堵塞

2．密封環(huán)處嚴(yán)重磨損、間隙大

3．壓頭過高

4．進(jìn)水管漏氣

5．吸程過高，局部產(chǎn)生汽蝕

1．排除堵塞物

2．更換密封環(huán)

3．降低壓頭

4．檢修進(jìn)水管

5．降低泵安裝高度或縮短進(jìn)水管

Failure

Causes

Remedies

No water

discharmng

1．Pump is not full ofwater．

2．Air leakage exists in the inlet pipe or in the sealing part．

3．Revolution direction reversed．

4．Length of inlet pipe is too long．

5．Suction lift is too high．

1．Fill water into pump till full

2．Repair the inlet pipe，remedy

The leakage．

3．Cheek and correct．

4．Shorten the inlet pipe．

5．Lower the suction lift．

Less flow

1．Impeller blocked．

2．Excessive wear-down in way of the sealing ring/Excessive clearance．

3．The liftis toohigh．

4．Air leakage exists in the inlet pipe．

5．Suction lift is to high．Local vapour etching appears．

1．Clear the blockage．

2．Replace the sealing ring．

3．Lowerthe lift

4．Repair the inlet pipe．

5．Lowertheposition of the pump or shorten the inlet pipe．