NuoXuTech

 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...

 A Roots vacuum pump is a type of rotary volumetric pump, derived from the Roots blower design. It shares a similar structure and working principle with the Roots blower and was first developed in Germany in 1944 for use as a mechanical booster pump in vacuum smelting systems. Known for its high pumping speed, the pressure range of a Roots vacuum pump typically lies between 10 and 1000 Pa. Types of Roots Vacuum Pumps Roots vacuum pumps can be classified based on their operating pressure range into: Direct Extraction Low Vacuum Roots Vacuum Pump Medium Vacuum Roots Vacuum Pump (Mechanical Booster Pump) High Vacuum Roots Vacuum Pump In the domestic market, the most commonly used type is the Roots vacuum pump. These pumps are equipped with two synchronized, counter-rotating rotors that maintain minimal clearances between each other and the pump housing, ensuring they do not come into contact. The geometric symmetry of the rotors results in minimal vibration and smooth operation. Addit...