What is the exhaust pressure of the vacuum pump?
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Question: The discharge pressure of a vacuum pump affects the level of vacuum. Without compromising the vacuum level, what is the maximum possible discharge pressure for a vacuum pump? What value is generally chosen?
First, you need to consider the type of pump, as the maximum pressure difference for each type of pump is different
The measurement point for a vacuum pump should be before the pump; it is this point that deserves attention. The pump outlet pressure is usually the lower, the better; it is generally at atmospheric pressure. Then why is it still necessary to pay attention to the outlet pressure?
A high back pressure at the vacuum pump outlet does have an impact on the level of vacuum. Assuming the pump outlet is connected to a flare system, if the pressure in that flare system suddenly increases, the compressed gas discharged by the vacuum pump will not be able to escape, which has a significant impact on the operation of the vacuum pump. Based on the conditions in our workshop, I believe this value lies between 0.2 and 0.3 MPa
Sometimes it is important to note that back pressure can affect the operation of vacuum pumps