Maintenance method of stainless steel pump

Maintenance method of stainless steel pump

Failure: no drainage

 

1. There is no priming fluid in the pump.

2. Suction pipe. Clogged pipe or pump.

3. Leakage of suction line.

4. The suction height exceeds the allowable range.

5. The use of the head exceeds the design lift.

6. Transmit heat and play the medium.

7. Turn back

8. Mechanical seal leakage.

 

Solution:

1. Refill the liquid.(no infusion for the second time)

2. Remove clutter

3. Repair and replace the suction line.

4. Reinstall the pump according to the allowable suction.

5. Reselected pump

6. Reduce the suction process or use the reverse irrigation installation.

7. Correct steering

8. Repair or replace mechanical seals.

 

 

Stainless steel self - suction pump for long time.

 

1. The liquid temperature is too high.

2. The suction pipe is too long.

3, import pipeline has Ω bending type

4. The exit is submerged in the liquid.

 

A degree, liquid spilled down to below 40 ℃

2. Shorten the pipe as much as possible.

3, remove all Ω pipeline

4. Connect the outlet with the atmosphere.

 

Stainless steel self-priming pump not enough.

 

1. The depth of the suction tube is not enough.

2. The suction line is too fine or is clogged with debris.

3. Impeller is seriously worn into serious corrosion.

4. The sealing ring has serious wear or corrosion.

5. The gap between impeller and pump cover is too large.

 

1. Increase the immersion depth of the suction tube.

2. Replace the appropriate pipes and remove debris.

3. Change the impeller.

4. Replace the new sealing ring.

5. Reduce clearance

 

Stainless steel self-priming pump head is not enough.

 

1. Impeller corrosion is serious.

2. Motor mismatch

3. The gap between impeller and pump cover is too large.

 

1. Replace the new impeller.

2. Replace the motor

3. Reduce clearance

 

Stainless steel self - suction pump bearing overheating.

 

1. Not enough lubricating oil or too much.

2. The pump shaft is different from the motor shaft.

3. Bearing damage

4. Bearing quality is inconsistent.

 

1. The lubricating oil shall be 30~40% of the sealed cavity.

Adjust the pump shaft with the motor shaft.

3. New bearing

4. Low noise bearing.

 

Stainless steel self-priming pump vibration is serious.

 

1. The pump shaft is different from the motor shaft.

2. Pump shaft bending

 

1. Adjust the pump shaft and motor shaft.

2. Re-axis

 

Stainless steel self-priming pump seal leakage.

 

1. Insufficient spring pressure.

2. Corrosion, abrasion or scratch of the moving ring or static ring.

3. Corrosion deformation of the dynamic sealing ring.

4. The axial movement of the moving ring is caused by the crystallization of the foreign body or medium.

 

1. Adjust the spring compression or change the spring.

2. Repair or replace the moving ring or static ring.

3. Replace the ring seal ring.

4. Remove the crystallization of foreign matter or media.

 

Stainless steel self - suction pump motor overheat.

 

1. The proportion of liquid is too high.

2. The mechanical seal spring is too tight.

3. Low voltage

4. Poor assembly quality, friction of some parts, or different hearts of motor and pump pomelo.

 

1. Increase the motor

2. Adjust the spring compression.

3. Increase voltage

4. Check the assembly quality and push out the assembly failure.