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The cause of the failure of the metering pump is insufficient.

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威尼斯官网:The cause of the failure of the metering pump is insufficient.

威尼斯官网: Release time:2018-05-04 author:Koyu machinery click:

Sometimes in the work of the metering pump, the flow of insufficient flow situation, in fact, there is a reason, the following hydraulic diaphragm metering pump manufacturer Department of Yu machinery small editor to introduce the reasons for the ten metering pump flow shortage, at the same time provide the corresponding solutions for reference:

Metering pump

Cause of failure

1. the foreign body enters the inlet and outlet one-way valve, causing the check valve to be closed.

2. unidirectional valve wear and tear of import and export

3. hydraulic oil cavity inner gas

4. built-in fuel valve closure is not strict

5. built-in exhaust valve has no normal exhaust

6. plunger seal wear

7. hydraulic oil brand error

The speed of 8. stroke is incompatible with the model

The exhaust of 9. pairs of septum is not exhausted

10. double diaphragm exhaust valve inner leakage

  

Solution

1. remove the import and export one-way valve for cleaning or replacement

2. replacement of one-way valve assembly or valve ball and seat

3. to the hydraulic oil chamber to carry out the exhaust. The exhaust gas or pressure can be released to release the exhaust

4. replace the built-in oil filling valve

5. replacement or cleaning of the built-in exhaust valve

6. replacement plunger seal

7. replacement of the correct brand of hydraulic oil

8. if the stroke speed is not consistent, worm wheel / worm assembly should be replaced.

9. exhaust the double diaphragm assembly, which can be evacuated

10. exhaust valve to replace the double diaphragm assembly

  


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