1. Flange connection
This is the most commonly used form of connection in valves. According to the shape of the joint surface, it can be divided into the following categories:
● Smooth type: it is ...
Trucks appear at a container terminal in the port of Qingdao in China’s Shandong province on April 28, 2021, after the tanker A Symphony and the bulk carrier Sea Justice collided outside the ...
Vacuum pumps have a wide range of applications in the manufacturing industry, primarily used to create or maintain specific vacuum environments to cater to different processes and production...
At present,China’s energy consumption in the building sector accounts for 40% of the country’s total energy consumption, energy saving and emission reduction pressure is huge. The ̶...
This series of Roots-type vacuum pumps cannot be used alone. It needs to be used in series with the pre-stage vacuum pump to increase the pumping rate of the pre-stage vacuum pump when the pressure...
I. Mechanical pumps
The main function of the mechanical pump is to provide the necessary pre-stage vacuum for the start-up of the turbomolecular pump. Commonly used mechanical pumps include mainly ...