Summary - vacuum pump commonly used performance parameters

small make up today I will tell you in detail the commonly used performance parameters of the vacuum pump. First, we need to know what is vacuum pump. Vacuum pump is refers to the use of machinery, physics, chemistry or physical chemistry method to suction pump container for vacuum device or equipment. Generally speaking, the vacuum water pump is a kind of use various methods to improve the vacuum device, produce and maintain the close room.

according to the working principle of vacuum pump, vacuum pump can be basically divided into two types, namely gas capture and gas transmission pump. Widely used in metallurgy, chemical industry, food, electronic coating, etc.

1。 Maximum foreland pressure

has exceeded grade pressure before may damage the pump.

2。 Extreme pressure ( Ultimate vacuum) ( Unit: Mr/trillion palmer/MMHG)

this pump is equipped with standard tests cover, and in accordance with the conditions stipulated in the work. Under the condition of not introduced into the normal operation of the gas, the minimum pressure stabilizing pump. That is to say, the entrance to the end of the vacuum pump can achieve the minimum stable after fully suction pressure.

3。 Compression ratio

given the pump outlet pressure and the ratio of the inlet pressure of the gas.

4。 Starting pressure

no damage to the pump start-up, and pumping air pressure.

5。 The early pressure

exhaust pressure below atmospheric pressure of the vacuum pump outlet pressure.

6。 Maximum working pressure

inlet pressure corresponding to maximum pumping quantity. Under this pressure, pump can work continuously without damage or damage.

7。 Gas ChouQuLiang ( Unit: para meters - 3 seconds 1; Pa L S- 1)

gas flows through the pump inlet flow. 1. The extraction rate ( Volume flow rate) ( S unit: m3 min - 1,m3 s - 1，l s- 1)

when the pump is equipped with a standard test cover and run under prescribed conditions, through the test cover flow of gas and location specified in the test on the ratio of the measured pressure balance. speed. That is to say, under certain pressure and temperature, vacuum pump in unit time from pumping out of gas in the container volume.

8。 Starting pressure

no damage to the pump start-up, and pumping air pressure.

9。 The early pressure

exhaust pressure below atmospheric pressure of the vacuum pump outlet pressure.

the place on put together is narrated, the vacuum water pump is pumping speed and extreme pressure selection of vacuum pump is the most important parameters in practical application.

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