What is the Vacuum pump? Vacuum Pump, which involves the vacuum principle, physics, chemical and machinery, is one of the most widely used pumps. And, vacuum pump manufacturer offers all sorts of pumps now.
Jet-type
This type of vacuum pump involves the use of air-liquid mixture (this may refer to air, high pressure water or steam). It's typically comprised of an ejector, water tank, liquid-vapor separator, etc. Jet-type vacuum pump is characteristic of easy operation, power conservation and so on. Furthermore, you can use it to pump gas with corrosive or toxic ingredient unlike rotary vacuum pump.
Water ring vacuum pump
It works by means of water (working solution) as well as centrifugal force. People also regard water ring vacuum pump as a compressor. By applying this type of vacuum pump, you can benefit low manufacturing cost, easy maintenance, stable running, etc. Additionally, it's able to get rid of flammable or explosive gas because of isothermality compressed gas.
On the other hand, water ring vacuum pump can't serve the interest of customers with high efficiency requirement. This is because it only offers 30~50 perfect efficiency.

Rotary vacuum pumps
Rotary vacuum pump, comprised of body, rotor, spiral slice or spring, comes in single stage or double stage vacuum pump. It works by means of centrifugal force and tension of the spring. It's often seen in the chemical, light industry, medicine industry, etc.
Rotary vacuum pump features a flexible use - that means you can take it as low vacuum pump and meanwhile combine it with high vacuum pump. However, you can't take it as a compressor.
While, there are a few limits when using rotary vane vacuum pump. When pumping gas with high oxygen, explosive or toxic content, you'd better substitute another vacuum pump for rotary vacuum pump allowing for safety.
Reciprocating vacuum pump
The influence of reciprocating movement of piston allows pump to work. Reciprocating vacuum pump, made up of body, cylinder, crank axle, connecting rod, piston or gas valve, is available in vertical as well as horizontal type.
It's characterized by high efficiency and high vacuum degree, but features complicated maintenance. Currently, it works well to pump corrosive gas with no solid particles.
As vacuum pump features higher efficiency, stable performance as well as durability, it has won the trust of customers. Its popularity is also due to numerous types, offering customers enough space to choose which type is more suitable.
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