Dry vacuum pump is a mechanical vacuum pump that can start pumping from atmospheric pressure and directly discharge the pumped gas into the atmosphere. There is no oil or other working medium in the pump chamber, and the limit pressure of the pump is the same or close to that of the oil-sealed va...

Rotary vane vacuum pump is a device that uses physical or chemical methods to extract the gas from the container, so as to obtain a lower than atmospheric pressure. Rotary vane vacuum pump’s function is to obtain and maintain the vacuum. Rotary vane vacuum pump is widely used in many indust...

The working pressure of the vacuum pump should meet the limit vacuum and working pressure requirements of the vacuum equipment. For example, vacuum coating requires a vacuum degree of 1 *10-5 mm Hg, and the vacuum degree of the selected vacuum pump should be at least 5 *10-6 mm Hg. Usually, the v...

The metal oil diffusion pump is a vacuum pump with low pressure, high speed and directional flow of oil vapor jet. This paper tries to further prove that the metal oil diffusion pump is the main pump equipment to obtain high vacuum from the characteristics of the metal oil diffusion pump, the wor...

Speaking of the application of vacuum pumps, there are too many, because there are many types of vacuum pumps, widely used in plastic machinery, brick and tile machinery, cryogenic equipment, paper machinery, food machinery, industrial electric furnaces, electronic industry, vacuum equipment, pet...

Rotary vane vacuum pump is a common thermoforming method in the production of plastic packaging containers. It is widely used in the processing of packaging materials. Vacuum suction moulding is generally used to make open shell products of thermoplastic sheets. The principle is simply to heat th...

With the rapid development of China’s economy, the demand for vacuum pumps in industry and other fields is also growing. Faced with the fierce competition in the vacuum pump market, how should users choose the products they need? What is the difference between large vacuum pumps and small v...

The most common vacuum equipment in the vacuum system of paper making is rotary vane vacuum pump. By introducing its development history, working principle, structural characteristics and the application characteristics of rotary vane vacuum pump in paper industry, this paper summarizes its advan...

Piston vacuum pump has high vacuum, ultra-low silence, compact size and no oil and gas.piston vacuum pump is widely used in automation equipment, laboratory, air detection equipment, photoelectric semiconductor, medical and pharmaceutical industries. The piston vacuum pump of Shanghai EVP vacuum ...

Roots vacuum pump is widely used in the key parts of paper consumption process, such as the network of paper machine, vacuum volt roll, vacuum pressing, wool dehydration and so on. The output of roots vacuum pump has a direct impact on the yield and quality of paper. When the flow rate falls and ...