Thread Content
The liquid ring pump may malfunction · Overcurrent, motor heat · Difficulty starting the pump (cannot) · Large vibration, loud noise · Low vacuum (high suction pressure) · Bearing failure · Pump leakage · Difficulty starting the pump (cannot) · Power supply failure · Foreign matter enters the pump, the impeller is stuck · Too much working fluid, high pressure · Packing is too tight · Friction between the impeller and the disc · Scale, rust · Motor failure Low vacuum (high suction pressure ) · The suction pipe is leaking or the pipeline is too thin · The inlet valve is not open or has resistance · The water supply is too small · There are too few pumps · The seal is leaking · The working water temperature is too high (>15℃) · The end face clearance is too large and the vibration/noise is large · The foot is not firmly fixed · Cavitation phenomenon · Too much working fluid · The blades fall off · Foreign matter enters the pump · The bearing is damaged (pump/motor/reducer) · The impeller is unbalanced (long time, wear bias) Overpower, motor heat, too much working fluid, exhaust pipe too long, too high, too thin, turning too sharply, exhaust hole blocked, valve plate falling off, pump gap too small, causing friction between impeller and disc, coupling not concentric, bearing failure, voltage too low, cause of failure, remedy, motor does not start, no sound, at least one power cord is broken, check the wiring, motor does not start, there is buzzing sound, one wire is broken, motor rotor is blocked, impeller failure, motor bearing failure If necessary, drain and clean the pump and correct the impeller clearance. Replace the impeller bearing. When the motor is started, the current circuit breaker trips and the winding is short-circuited. The motor is over-cut and the exhaust pressure is too high. There is too much working fluid. Check the motor winding. Reduce the flow of working fluid. Reduce the exhaust pressure. Reduce the power consumption of the working fluid. Excessive power consumption produces sediment. Clean and remove the sediment. The pump cannot generate vacuum. No working fluid leakage. Serious rotation direction is wrong. Check the working fluid. Repair the leak. Replace two wires and change the direction of rotation.