Vacuum pump unit selection method

The vacuum pump unit uses the Roots pump as the main pump, and the vacuum pump unit uses the Roots pump as the main pump. The rotary vane pump is made of a foreline pump in series. Its compact structure and easy operation. Suitable for the extraction of air and other non-condensable and non-corrosive gases, used in various vacuum systems that require large pumping speeds and high vacuums. Such as: vacuum smelting, power capacitors, transformers, vacuum impregnation, vacuum coating equipment, such as pre-extraction. When using a pump that does not meet the pumping and vacuum requirements, several pump combinations are required to complement each other to meet the process requirements.

Pre-vacuum is required; some vacuum pump inlet pressures are lower than atmospheric pressure, and vacuum pumps have vacuum pumps that cannot operate at atmospheric pressure. A foreline pump is required, so it is necessary to combine the pumps. The combined use of a vacuum pump, called a vacuum pump unit, enables the vacuum system to achieve better vacuum and exhaust. The combined vacuum pump should be chosen correctly. Different vacuum pumps require different requirements for the gas to be pumped. For example, the Roots-swirler unit is not suitable for systems containing more condensable gases.

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Steel Structure Fabrication

Steel structure fabrication is the process of creating steel structures by cutting, bending, and assembling steel components. This process typically involves using specialized equipment such as welding machines, cutting torches, and bending machines to shape and join steel beams, columns, and other structural elements. The fabricated steel components are then assembled on-site to create buildings, bridges, industrial facilities, and other structures. Steel structure fabrication is a crucial part of the construction industry, as steel is a strong and durable material that can support heavy loads and withstand harsh environmental conditions.

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