增压泵分为气液增压泵，
气体增压泵，原理是利用大面积活塞的低气压产生小面积活塞的高液压。增压泵自助选型应注意事项有哪些呢？先从四个问题了解起来。
Booster pump is divided into gas-liquid booster pump and gas booster pump. The principle is to use the low pressure of large area piston to generate high hydraulic pressure of small area piston. What should be paid attention to in self-service type selection of booster pump? Let's start with four questions.
1.增压的是介质是什么?
1. What is the pressurized medium?
液体：如清水、液压油、航空煤油、乳化液等，则选择气液增压泵
Liquid: such as clean water, hydraulic oil, aviation kerosene, emulsion, etc., gas-liquid booster pump shall be selected
气体：空气、氮气、氧气、氦气等气体，则选择气体增压泵
Gas: air, nitrogen, oxygen, helium and other gases, then select the gas booster pump
两类泵虽然原理相同，但其结构不同，所以不能混用。
Although the two types of pumps have the same principle, their structures are different, so they cannot be mixed.
2.被增压介质增压前的压力是多少?
2. What is the pressure before being pressurized by the pressurized medium?
对于气液增压泵，液源无需压力，依靠泵自身的自吸能力即可将介质吸入泵中进行增压;
For gas-liquid booster pump, the liquid source does not need pressure, and the medium can be sucked into the pump for pressurization depending on the self-priming capacity of the pump itself;
对于气体增压泵，须知道介质的进气压力，这绝定的后面的正确选型，如果输出压力在8MPa以上，进气压力小于1.2MPa则需选用双级气体增压泵HGT系列，对于HGS系列、HGD系列增压比10：1以上的，
For the gas booster pump, the inlet pressure of the medium must be known, which determines the correct model selection. If the output pressure is more than 8MPa and the inlet pressure is less than 1.2MPa, the two-stage gas booster pump HGT series must be selected. For the HGS series and HGD series with a boost ratio of more than 10:1,
进气须有较高的预压，如氮气瓶等。
The intake air must have high pre pressure, such as nitrogen cylinder.
3.被增压介质的温度是多少?
3. What is the temperature of the pressurized medium?
增压泵一般不适用于高温流体的增压。
Booster pumps are generally not suitable for pressurization of high-temperature fluids.
4.如果是压力检测，被打压的产品容积是多少?
4. If it is a pressure test, what is the volume of the product being pressurized?
如果没有具体数据，可以选择相对等的常见容积进行描述，但不可告知，不大、很小等词语，因大小是个相对概念，对选型没有任何帮助。
If there is no specific data, you can choose relatively equal common volumes to describe, but you can't tell. Words such as small and very small are not helpful for selection because size is a relative concept.
The four questions about self selection of booster pump are summarized above. If you have any ideas or doubts, please come to our website //keonnected.com Consult!
