The oil free diaphragm vacuum pump or oilless vacuum pump is a transfiguration type vacuum pump, it has been widely used for vacuum filtration, rotary evaporation, freezing, drying, vacuum concentration and molecular distillation.
oil free diaphragm vacuum pump
Each set of the oilless vacuum pump is equipped with following components: a vacuum manometer (-0.1MPa), a connecting rubber tube, a silencer and an instruction book. If your oilless vacuum pump is broken, you can return it to our factory for maintenance or follow by below steps to maintain by yourself.
1.Disconnect the power of oil free diaphragm vacuum pump, remember to power off before maintenance to ensure safety.
2.Loosen the pressure valve and let out the gas inside the oil free diaphragm vacuum pump.
3.Pull up the rubber tube.
4.Dismount the pressure valve and remember its installation position, dismount four-way valve.
5.Screw out the screws which at the head of oilless vacuum pump, open air chamber.
6.The sealing ring is in the groove of the opposite of air chamber, change or wrap it clean if sealing ring is damaged or dirty.
7.Inspect valve block (black rubber and stainless steel), change a new one if damaged.
8.Fix the black diaphragm by gland, check whether the diaphragm is broken, please change it if damaged.
9.If require, please use water solvent to clean the head of oilless vacuum pump or use high pressure gas to blow away.
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