Common Terminology in the Vacuum Pump Industry
The vacuum pump industry uses several technical terms to describe different aspects of vacuum systems. Whether you’re an engineer or a technician, familiarity with these terms is crucial for effective communication and operation. Below are some of the most frequently used terminologies: 1. Vacuum Level The vacuum level indicates the degree of gas rarefaction in a vacuum state. It is often expressed as “high vacuum” or “low vacuum.” The international standard unit is Pascal (Pa), though Torr was previously more commonly used. One Torr equals 133.322 Pa. 2. Pumping Speed (S) Measured in cubic meters per hour (m³/h) or liters per second (L/s), pumping speed refers to the amount of gas removed at the pump inlet within a unit of time under specific pressure and temperature conditions. The formula is: S p = Q P − P 0 S_p = \frac{Q}{P - P_0} S p = P − P 0 Q Where: Q Q Q is the amount of gas, P P P is the current pressure, P 0 P_0 P 0 is atmospheric pressure. 3. Gas Throughput...