Hot water circulating pump fault solution

Hot water circulating pump fault solution
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.

One, hot water circulating pump water?
1. Import and export valve does not open the hot water pump, in and out of the pipeline jam, abortion impeller blocking.Solution, remove the obstruction.
2. Import and export of water shortage, high electron absorption, bottom valve is leaking.Stop check and adjust (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. The motor running direction is wrong, motor open phase rotation speed is slow.Adjust the direction of motor, the motor wiring.
6. System resistance is too large, improper centrifugal pump selection.Reduce the pipe bend, to choose the pump.

Second, the lack of hot water circulating pump?
1. The hot water circulation pump valve is not opened, import and export in and out of the pipeline jam, abortion impeller blocking.Solution, remove the obstruction.
Part 2. The pipe and hot water circulating pump flow channel impeller blocking, scale deposition and valve opening.Remove the obstruction, readjust the valve opening.
3. More than the rated flow.Adjust flow down outlet valve.
4. The impeller wear.Change of the impeller.
5. Centrifugal pump voltage is low.Voltage regulator.
6. Pump bearing wear.Replace the bearing.
7. High centrifugal pump suction bout.Reduce the suction.
3. Hot water circulating pump, vibration noise?
1. The liquid mixed with gas.Improve the suction pressure and exhaust.
2. Produce cavitation.Reduce the degree of vacuum.