The vacuum pump is a rotary variable-capacity vacuum pump. It must be equipped with a foreline pump. It can be used in a wide pressure range. The pumping speed is not sensitive to dust and water vapor in the extracted gas. It is widely used in metallurgy and chemical industry. , food, electronic coating and other industries.
1. The vacuum pump can't work for a long period of time. Therefore, when the vacuum degree meets the requirements of dry goods, the vacuum valve should be closed first, then the vacuum pump power supply should be closed. When the vacuum degree is less than the requirements of the dry goods, the vacuum valve and the vacuum pump power supply are turned on, and the vacuum is continued. Extend the life of the vacuum pump.
2. If the dry items are wet, it is better to add a filter between the vacuum box and the vacuum pump to prevent the humid gas from pumping into the vacuum pump, causing the vacuum pump to malfunction.
3. If the rubber plug of the deflation valve is difficult to rotate, it can be lubricated with a proper amount of grease on the inside.
4. After the vacuum drying box is used for many times, it will not be able to vacuum. In this case, the door seal should be replaced or the door hinge extension on the box should be adjusted to solve the problem. When the drying temperature of the vacuum box is higher than 200 degrees, there may be a phenomenon of slow air leakage. At this time, remove the back cover of the box and loosen the base of the heater with a hexagon socket plate, and replace the sealing ring or tighten the heater base to solve.