How to adjust screw vacuum pump

Screw vacuum pump is a kind of suction and exhaust equipment which uses a pair of screw to make synchronous high-speed reverse rotation in the pump housing. After a period of time, the gap of the equipment gradually occurs, which will bring trouble to the equipment. Here we will teach you how to adjust it:

How to adjust the gap

1. Screw vacuum pumps are usually twin-screw, single-suction or double-suction type of gap adjustment is different.

2. If the new pump is not worn out:

Open the gear end of the pump drive, loosen the pressure sleeve of the gear, manually adjust the clearance between the spiral sleeves and tighten the gear again, so that the relative clearance between the screw sleeves can be adjusted well, but this is a technical work without certain experience, and each manufacturer is a little different, find the original manufacturer to adjust.

3. If the adjustment of the axial clearance is mainly to adjust the adjusting gasket of the positioning bearing, but it is not necessary to adjust after the general factory.

4. If the screw sleeve or pump sleeve is worn out, it is generally not easy to solve this problem by adjusting the clearance, only parts can be replaced.

2. Factors leading to equipment replacement

1. Oil pollution is the common cause of vacuum pump failure and unstable operation. If water or acid vapor flows through the pump and the oil is kept working for a period of time.

2. There will be serious corrosion and damage to the pump. The simple way to determine the need for oil change is to connect a vacuum meter to the pump to find out whether it can reach the rated vacuum.

3. In small pumps, the black oil does not necessarily indicate that the oil has been polluted.

4. If you smell the presence of solvents, you usually need to change oil. Light brown, dark oil also indicates the presence of water. Once you have doubts, you should change oil.

In order to reduce the gap of screw vacuum pump, we should start from the daily maintenance, regular cleaning and maintenance, if the equipment reaches the deadline, then replace it. Don't think it's a minor problem that doesn't matter. Often big problems come from minor problems.

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