1. What are the possible causes of insufficient pump flow? How to solve it?
(1) There is air in the water pump. --- Method: Venting.
(2) Damage to the seals of the water pump: Measures: Replace the parts of the seal ring.
(3) Leakage at fillings --- Method: Apply some butter to the packing to tighten the packing press plate.
(4) The pump speed is too low and the voltage is too low - Method: Try to raise the voltage.
(5) Impeller, inlet, and pipe blockage - Method: Remove debris.
(6) Excessive wear of impeller - Method: Replace impeller and check bearing wear.
(7) The motor is not steered. - Method: Adjust the phase.
(8) The centerline of the impeller is not immersed in the liquid---Method: Adjust the immersion height.
2. What is the possible cause of the pump bearing heating? How to solve it?
(1) The spindle is different from the motor shaft --- Method: Adjust the concentricity.
(2) The lack of oil in the bearing cover or oil deterioration --- Measures: Refueling or oil change.
3. What are the possible causes of insufficient pump Yang Cheng? How to solve it?
(1) Damage to the impeller - Method: Replace the other parts.
(2) Insufficient rotation speed --- Method: Check voltage and motor are normal.
(3) Containing gas in infusion - Method: Reduce liquid temperature to remove gas.
4. What are the possible causes of vibration or noise in the water pump? How to solve it?
(1) The spindle is different from the motor shaft --- Method: Adjust the concentricity.
(2) Rotor imbalance - Method: Replace parts.
(3) Loosening of the nut---Method: Tighten the nuts of each part.
(4) The infusion solution contains gas or dehydration operation - method: reduce the liquid temperature, remove the gas, impeller into the liquid.
(5) Excessive wear of water bearings and journals. Method: Replace water bearings and restore shaft strength.
5. What is the possible reason for the small amount of liquid in the pump or no liquid? How to solve it?
(1) The motor does not turn right - Method: Adjust the phase.
(2) The centerline of the impeller is not immersed in the liquid---Method: Adjust the immersion height.
6. What are the possible causes of pump power overload? How to solve it?
(1) The proportion of medium is too large --- Method: Replace the high-power motor.
(2) The flow rate exceeds the scope of use --- Measures: Work according to the scope of use.
(3) Produce mechanical friction --- Measures: Check to adjust or replace worn parts.
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