TRP Double stage rotary vane vacuum pump is one of the fundamental vacuum acquiring equipment in vacuum applications.which is widely used in scientific research and teaching the require high or low...
The scroll vacuum pump evolved from the scroll compressor. Its structural principle was first invented by the French engineer Cruex in 1905, but due to technological limitations at the time, it was...
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 ...
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 ̶...