Hot water circulating pump is widely used in: energy, metallurgy, chemical industry, textile, paper and other fields, the following are the main types of hot water circulation pump failure: not lack of water, flow, vibration noise, leakage. The following is a common problem and countermeasures, hoping to help the user. No, hot water circulating pump water? 1. Import and export valve does not open, hot water pump in and out of the pipeline jam, abortion impeller blocking. Solution, remove the obstruction. 2. Import and export of water supply is insufficient, electron absorption is high, the bottom valve is leaking. Check and adjust (downtime Hooked up to the water pipe and use suction easy to appear the phenomenon) 。 3. Not the filling of liquid, pump chamber in the air. Open the pump cover or open the discharge valve, exhaust air. 4. Hot water circulating pump suction pipe leakage. Tighten the sealing surface, eliminate the air. 5. Motor running direction is wrong, lacks speed is very slow. Adjust the direction of motor, the motor wiring. 6. Improper system resistance is too large, the centrifugal pump selection. Reduce the pipe bend, to choose the pump. Second, the lack of hot water circulating pump? 1. Import and export valve does not open, hot water circulating pump in and out of the pipeline jam, abortion impeller blocking. Solution, remove the obstruction. 2. Pipes, hot water circulating pump flow channel impeller partially blocked, scale deposition and valve opening. Remove the obstruction, readjust the Industrial Valves opening. 3. Use more than the rated flow. Adjust flow down outlet valve. 4. Wheel wear. Change of the impeller. 5. Centrifugal pump voltage on the low side. Voltage regulator. 6. Pump bearing wear. Replace the bearing. 7. Centrifugal pump suction electron is high. Reduce the suction. 3. Hot water circulating pump, vibration noise? 1. Liquid mixed with gas. Improve the suction pressure and exhaust. 2. Produce cavitation. Reduce the degree of vacuum. 3. Pipe support. Solid line. 4. Bearing damage. Replace the bearing. 5. Motor overload heating operation. Adjust flow down outlet valve. Four. Hot water circulating pump motor fever how to do? 1. Hot water circulating pump is too large, overload operation. Turn down the outlet valve 2. Hot water circulating pump motor bearing damage. Replace the bearing. 3. Lack of voltage. Voltage regulator. 4. Scratches. Check out.
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