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How to identify the vacuum degree of the water ring vacuum unit？
The vacuum degree value of the water ring vacuum unit refers to the value of the actual pressure value in the negative pressure station which is lower than the atmospheric pressure. It is usually identified by the following two methods:
1. Marked by “absolute pressure” and “absolute vacuum”: In actual conditions, the absolute pressure value of the water ring vacuum unit is between 0 and 101.325 KPa, which needs to be measured with an absolute pressure gauge at 20 ° C and altitude. In the zero place, the initial value of the meter for measuring the degree of vacuum is 101.325 KPa.
2. Use "relative pressure" and "relative vacuum degree" to identify: "relative vacuum degree" means the difference between the pressure of the measured object and the atmospheric pressure of the measurement site, measured by an ordinary vacuum gauge, and the initial value of the table under normal pressure. It is 0. When vacuum is measured, its value is between 0 and -101.325 KPa.
The water ring vacuum unit can save water source and reduce environmental pollution. It is flexible and convenient to install. It is widely used in places where the vacuum source is frequently used and the required pumping volume is not too large.
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