Understand the composition of the pumped gas, whether the gas contains condensable steam, whether there is particle dust, whether it is corrosive, etc. When choosing a vacuum pump, you need to know the gas composition and select the corresponding pump for the gas to be pumped. If the gas contains steam, particles, and corrosive gases, it should be considered to install auxiliary equipment on the inlet pipeline of the pump, such as condensers, dust collectors, etc.
When choosing an oil-sealed vacuum pump, it is necessary to consider the impact of the oil vapor (soot) discharged from the vacuum pump on the environment. If the environment does not allow pollution, an oil-free vacuum pump should be selected, or the oil vapor should be discharged outdoors.
Whether the vibration generated by the vacuum pump has any influence on the process and the environment, if the process does not allow, choose a pump without vibration or take anti-vibration measures.
The price, operation and maintenance costs of the vacuum pump.
After considering various situations, you can finally determine a solution that is suitable for you:
(1) Minimal investment cost.
(2) Minimal production and running costs.
(3) A feasible solution to reasonably and evenly distribute the first two situations.
