Reasons for and Solutions to Centrifugal Pump Shutdowns

Chemical pump sump too high, corrective measures: Check the existing net head (too small or too long an inlet pipeline can cause significant friction loss).

2) Impeller or pipeline blockage, corrective measures: Check for obstructions.

3) There is a leakage in the air or FH stainless steel chemical pump inlet pipeline. Corrective measures: Check for air pockets or air leaks in the inlet pipeline.

4) Wear on the packing or seal within the stuffing box allows air to leak into the pump casing. Remedy: Inspect the packing or seal and replace as necessary. Check for proper lubrication.

5) Insufficient water head when transferring hot or volatile liquids, corrective measures: Increase water head, consult with the manufacturer.

6) Insufficient immersion depth of the bottom valve or inlet pipe; corrective measures: consult the manufacturer for the correct immersion depth and use baffles to eliminate eddies.

7) Membrane pump housing gasket damage: Elimination measure: Inspect the condition of the gasket and replace it as required.

2. No liquid supply; insufficient liquid supply or low pressure

1) No waterlogging or inadequate exhaust, corrective measures: Check if the pump casing and inlet pipes are fully filled with liquid.

2) Slow speed, corrective measures: Check if the motor wiring is correct, if the voltage is normal, or if the pressure is normal.

3) System head too high, corrective measures: Check the system head (especially friction losses).

4) Suction Head Too High: Mitigation Measures: Check the existing net pressure head (too small or too long of an inlet pipe can cause significant friction losses).

5) Impeller or pipeline blockage: Check for obstructions.

6) Incorrect rotation direction; corrective measure: check rotation direction.

7) Air or inlet pipeline leakage detected; corrective measures: inspect for air bags or air leaks in the inlet pipeline.

8) Wear in the packing or seal within the stuffing box allows air to leak into the pump casing. Remedy: Inspect the packing or seal and replace as necessary, check for proper lubrication.

9) Insufficient water head when transferring hot or volatile liquids; corrective measures: increase the water head, consult with the manufacturer.

10) Bottom valve too small, corrective measure: Install a bottom valve of the correct size.

11) Insufficient immersion depth of the bottom valve or inlet pipe; corrective measures: consult the manufacturer for the correct immersion depth. Use baffles to eliminate vortices.

12) Turbine blade gap too large, corrective action: Check if the gap is correct.

13) Impeller Damage: Measure - Inspect the impeller and replace as required.

14) The impeller diameter is too small. Solution: Consult the manufacturer for the correct impeller diameter.

15) Incorrect Pressure Gauge Location, Corrective Measures: Verify the location is correct; inspect the outlet spout or pipe.

Centrifugal Thermal Oil Pumps, Air-Cooled Thermal Oil Pumps, Thermal Oil Circulation Pumps, Boiler Oil Pumps - Provided by Changzhou WuYan Thermal Oil Pump Manufacturer