High vacuum gate valve has three driving modes:manual, pneumatic and motor-driven, which have the advantages of smooth action, small size, reliable use, good sealing performance and long life, etc....
In vacuum systems there are flanges of various sizes
such as KFundefined CFundefined ISOundefined etc. These series of flanges are used in the vacuum system in the common sealing connectionundefine...
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 ...
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...
Rotary vane vacuum pumps are used as oil sealed pumps most of the time. During the use, some oil and gas will be expelled together with the pumped gas, resulting in oil spray. Therefore, rotary van...
1. Basic types and characteristics.
Water ring pumps can be divided into the following types according to different structures.
■ Single-stage single-acting water ring pumps: single-stage means th...