Flow | 180 - 5500 m3/h |
Head | 5 - 18 m |
Speed | 485 -2200 RPM |
Power | 5 - 300 kW |
Caliber | 150 - 650 mm |
Fault | Cause | Solution |
The pump cannot suck water, pressure gauge & vacuum gauge vibrating | 1. Insufficient water pouring 2. Leak between pipe and meter 3. Suction is too high | 1, check a leak in the bottom valve. 2, Tighten the leaked part 3, reduce suction |
The pump cannot suck, high vacuum is shown in the vacuum gauge | 1, bottom valve closed or jammed 2, Too great water suction resistance 3, filter jammed | 1, check bottom valve 2, replace water suction pipe 3, clear off the filter |
Pressure gauge works, no water outcome | 1. Great outlet water pipe resistance 2. Wrong rotation direction 3. Outlet pipe valve closed 4. impeller jammed | 1. check or shorten water pipe 2, check the motor, adjust 3, open the valve and clear off the impeller |
Cannot reach designed flow | 1. air sucked 2. Water level drops, submerged depth is not enough 3. impeller jammed 4. rotor torn and worn | 1, check leak part and clear off 2, prolong water inlet pipe, increase the submerged depth 3, uninstall and clear off 4, replace seal ring |
Great pump power consumption | 1. Stuff tightened, overheated 2. Great flow 3. Collision between rotor and case 4. Pump shaft bearing abrasion 5. Pump shaft misplaced | 1. loosen slightly 2. reduce globe valve opening 3. adjust 4. replace bearing 5. replace or adjust |
Great pump vibration | 1. impeller partially jammed 2. impeller damaged 3. little flow 4. non-concentric between pump shaft and motor. 5, bearing damaged 6, gas etching | 1. Uninstall and clear off 2, replace 3, increase opening 4, adjust 5, replace 6, change suction inlet position |