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 ...
The Chinese government has spent $14.84 billion on green building projects as it focuses more on reducing building pollution.
It also spent $787 million on green building materials for specially de...
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 ...
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. What is a pump?
A: A pump is a machine that converts the mechanical energy of the prime mover into energy for pumping liquids.
2. What is power?
A: The amount of work done per unit of time is ca...
I. Introduction of valve
Vacuum valve is a vacuum system component used to change the direction of airflow, adjust the size of gas flow, cut off or connect the pipeline in the vacuum system. The c...