1. Lubricated water ring vacuum pump
Since the vacuum pump and the motor are one, only the motor bearings need to be lubricated. Under normal operating conditions (50Hz), class B insulated motor bearings must be cleaned and added after approximately 8000 hours or one year.
2. Water ring vacuum pump maintenance
(1) frequently check whether the bolts are loose, whether the air pipe is leaking, whether the packing seal is tight, whether the packing seal is leaking, whether there is friction sound or other noise in the rotating parts. If so, please stop or repair or replace the parts.
(2) there should be no sand or debris in the water.
(3) if hard water is used as the working fluid, the water must be softened or the solvent must be used frequently to flush the pump. It is usually immersed in 10% oxalic acid for 30 minutes, or in detergent used in industrial boilers for 30 minutes to remove calcium carbonate.
(4) if the pump is not used for more than two weeks, drain the water in the pump and fill the suction inlet of the pump with 0.5l rust inhibitor or oil, and push the pump for less than 1s.
(5) if the water ring vacuum pump is used in places where it is likely to freeze at low temperature, antifreeze and corrosion resistant working fluids, such as mineral oil, should be used. Drain the pump chamber after each use.
(6) if the water ring vacuum pump does not work for a long time, please drain the water in the pump and add anti-rust fluid to protect the pump.
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