Common faults and countermeasures of Shanghai Bilang hot water circulation pump? Hot water circulation pumps are widely used in: energy, metallurgy, chemical industry, textile, paper making and other fields. The hot water circulation pumps mainly have the following failures: no water, insufficient flow, noise vibration, and water leakage. The following are common problems and countermeasures, hoping to help users. 1. What should I do if there is no water from the hot water circulation pump? 1. The inlet and outlet valves of the hot water pump are not opened, the inlet and outlet pipes are blocked, and the abortion impeller is blocked. Solution, remove obstructions. 2. Insufficient water supply for import and export, excessive suction range, and leaky bottom valve. Check and adjust during shutdown (this phenomenon is prone to occur when using grid-connected water pipes and with suction). 3. The pump is not filled with liquid and there is air in the pump cavity. Open the pump cover or open the exhaust valve to exhaust the air. 4. Leakage in the suction pipe of the hot water circulation pump. Tighten the sealing surfaces to eliminate air. 5. The running direction of the motor is wrong, and the speed of the motor phase loss is very slow. Adjust the direction of the motor and firm the motor wiring. 6. The pipeline resistance is too large, and the centrifugal pump is not properly selected. Reduce pipeline bends and reselect the pump. Second, the flow of the hot water circulation pump is insufficient? 1. The inlet and outlet valves of the hot water circulation pump are not opened, the inlet and outlet pipes are blocked, and the abortion impeller is blocked. Solution, remove obstructions. 2. The impeller of the pipeline and the hot water circulation pump flow path is partially blocked, scale deposits, and insufficient valve opening. Remove the obstruction and readjust the valve opening. 3. Use beyond the rated flow. Adjust the flow to close the small outlet valve. 4. Impeller wear. Replace the impeller. 5. The voltage of the centrifugal pump is low. Voltage regulation. 6. Pump bearing wear. Replace the bearing. 7. The suction range of the centrifugal pump is too high. Reduce the suction stroke. 3. The noise and vibration of the hot water circulation pump? 1. Liquid is mixed with gas. Increase suction pressure to exhaust. 2. Cavitation occurs. Reduce the vacuum. 3. The pipeline support is unstable. Secure the pipeline. 4. The bearing is damaged. Replace the bearing. 5. Motor overload and heat running. Adjust the flow to close the small outlet valve. 4. What should I do if the motor of the hot water circulation pump heats up? 1. The flow rate of the hot water circulation pump is too large, and it is overloaded. Close the small outlet valve 2. The motor bearing of the hot water circulation pump is damaged. Replace the bearing. 3. Insufficient voltage. Voltage regulation. 4. Rub. Check and exclude. BILON brand, dedicated service 16"13g White Powder Plain Caped Hanger SHAOXING DINGLI METAL CLOTHESHORSE CO., LTD , https://www.dingliclothrack.com