The vacuum pump cavity is completely free of oil and water, so as to avoid the trouble of oil contamination brought into the circulation system during the use of the rotary vane pump, and improve the product quality. The oil tank and vacuum chamber are designed separately to completely solve the hidden danger of lubricating oil entering the working chamber. The sealing structure specially designed for ultra clean working conditions such as diamond cultivation can be sealed independently without relying on the oil tank, so as to avoid air entering the circulation system and affecting the diamond quality. Dry vacuum pump is favored by the majority of man-made diamond manufacturers and has been used to replace the oil rotary vane vacuum pump.

The following factors shall be taken into consideration when you paln to make a new installation or select refurbished system:

1. Does the use environment need to be pollution-free?

Due to the design principle, some vacuum pumps need to use other media to assist the operation of the pump, such as rotary vane vacuum pump and water circulation vacuum pump, which need to be filled with pump oil and connected with water source respectively. When pump oil is used, oil mist will be emitted into the air to pollute the environment, oil mist molecules will diffuse to the vacuum chamber to pollute the pumped materials, and some corrosive materials will react with the oil in the pump chamber to damage the vacuum pump.

The water circulating pump also needs these problems. Toxic and harmful materials are mixed with the water circulating working fluid in the vacuum pump, resulting in a large amount of sewage which is difficult to treat. Therefore, some users who need clean vacuum, as well as customers who have corrosive gases or magnetic media under working conditions, cannot use such products.

At this time, oil-free dry vacuum pump can solve this problem well.

2. Which instruments and equipment are used together?

Different equipment has different uses, and some require higher vacuum, such as vacuum distillation; On the other hand, it requires higher air extraction speed, such as vacuum drying oven, which needs to consider the internal volume of the box; However, the application of vacuum filtration is more complex, so it is necessary to investigate the capacity of filtered filtrate and the content of particles in the liquid, and then select products with appropriate vacuum degree or pumping speed according to different conditions.

3. Volume of supporting equipment

The volume of the equipment is related to the pumping speed parameter of the vacuum pump, so it is necessary to select the suction filter pump with higher pumping speed for filters of different sizes.