I.Starting Difficulty
1.Pump sedimentation:Material solidification after shutdown requires thorough pump cavity cleaning.
2.Rotor jamming:
-Thermal expansion/corrosion:Replace temperature/corrosion-resistant rotors.
-Fiber/metal debris:Clean pump body;install shredder at inlet.
3.Assembly deviation:Recalibrate excessive axial tolerance.
4.Insufficient power:Upgrade to工况-matched motor.
II.Suction Failure
1.Procedural errors:
-Valve closed/wrong flow direction:Open valves or correct motor rotation.
-Inlet clogging/leakage:Clear pipes;tighten flanges/replace gaskets.
2.Operating limits exceeded:
-Excessive self-priming height:Lower installation height or prime pump.
-Air entrapment:Vent pipeline gas.
3.Component damage:
-Mechanical seal failure:Replace seal assembly.
-Rotor coating damage:Install medium-corrosion-resistant rotor.
III.Abnormal Vibration
1.Parameter mismatch:Adjust speed/inlet pressure.
2.Component wear:
-Rotor imbalance:Replace with dynamically-balanced rotor.
-Bearing failure:Replace immediately.
3.System blockage:Clean inlet pipes.
IV.Seal Leakage
1.Cavity seal failure:
-Isolation chamber leak:Replace O-rings/mechanical seals.
2.Connection leakage:
-Seals aging:Renew packing/gaskets.
-Loose flange:Tighten bolts/repair sealing surface.
V.Performance Degradation
1.Flow/head deficiency:
-Inlet resistance:Clear filter/pipe blockages.
-Low speed:Verify motor frequency/transmission ratio.
2.Flow path blockage:Clean rotor/pump cavity deposits.
VI.Excessive Noise
1.Bearing damage:Replace if abnormal sound occurs.
2.Rotor imbalance:Correct concentricity/dynamic balance.
3.Installation defects:Reinforce base/verify alignment precision.
VII.Motor Faults
1.Electrical issues:Inspect and secure terminals.
2.Bearing wear:Replace motor bearings.
(Bonve Pumps After-Sales Service System)
For Bonve rotor pump after-sales needs,contact us for professional solutions:
Bonve adheres to the philosophy of"Dedicated to Excellence in Rotor Pumps,"providing customized global solutions for fluid transfer and mixing.For technical consultations,model selection,case references,or collaborations,reach us at:
Tel:0574-87588986/+86 13586591794
Official:www.bvpumps.com
Email:market@bonvepumps.com
We look forward to advancing industrial fluid transfer efficiency and innovation through precision technology.
