A vacuum bellow is an axisymmetric tubular shell that whose bus bar is corrugated in shape and which has a certain bendability. Therefore it is also referred to as a flexible or flexural tube. Due ...
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 ...
Beijing Super Q Technology Co., Ltd. has EV series oil-lubricated 600L, 1200L, 1600L compound molecular pumps and 3600L turbine type molecular pumps; grease-lubricated 300L, 650L, 1300L, 2000L comp...
A vacuum pump is a device that generates, improves and maintains a vacuum in an enclosed space by various methods. A vacuum pump can be defined as a device or equipment that uses mechanical, physic...