Slide valve vacuum pump:
Mainly widely used in the production and development of new materials, technologies, and processes such as crystallization, coating, metallurgy, heat treatment, impregnation, drying, distillation, mud refining, aerospace simulation experiments, etc. must be carried out under vacuum conditions.
The slide valve vacuum pump can be used alone, or as the front pump of Roots vacuum pump, oil Booster pump, and oil diffusion pump. However, when pumping corrosive Ferrous, causing chemical reaction to the vacuum oil, and containing a large amount of steam and dust, other additional devices must be installed.
Advantages: Compared to rotary vane vacuum pumps, their durability is several times higher and their pumping rate is large, but their prices are relatively higher;
If it is used as one of the basic equipment for removing the gas from the closed container, it can be used alone, and can also be used as the front pump of Booster pump, diffusion pump, and molecular pump. This type of pump is widely used in vacuum smelting, vacuum coating, vacuum heat treatment, vacuum drying and other processes in metallurgy, machinery, electronics, chemical industry, petroleum, medicine and other industries.
Rotary vane vacuum pump:
The pump has the advantages of compact structure, small volume, light weight, low noise, and low vibration. So it is more suitable as a front stage pump for diffusion pumps, and is more suitable for use in laboratories equipped with precision instruments. For example: mass spectrometry instruments, refrigerator assembly lines, vacuum freeze-drying machines, etc.
Roots vacuum pump:
This is a rotary variable capacity vacuum pump that must be used in conjunction with the front stage pump. It has a large pumping speed over a wide pressure range and is not very sensitive to the removal of gases containing dust and water vapor.
Widely used in industries such as metallurgy, chemical industry, food, electronic coating, etc. There are several types of front stage pump auxiliary pumps suitable for matching with the main pump of the vacuum unit: water ring vacuum pump, slide valve vacuum pump, vertical oil-free vacuum pump, molecular vacuum pump, and so on.
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