Vacuum valve refers to the valve whose inner cavity is in vacuum state, usually called negative pressure. The inner cavity pressure is lower than atmospheric pressure. It is used in vacuum pipeline ...
Vacuum valve refers to the vacuum state of the valve cavity, usually called negative pressure, the internal cavity pressure is lower than atmospheric pressure, the valve used for vacuum piping ...
Electromagnetic vacuum belt inflation valve and electromagnetic vacuum differential pressure valve are vacuum valves specially used to prevent mechanical vacuum pumps from returning oil. They are ...
The vacuum valve should be pressure tested before installation to ensure the tightness and safety of the valve itself. (1) Strength test. The strength test uses water as the medium; weld ...
To understand the general structure and principles of various types of vacuum valves. For the same type of vacuum valve, the valve type should be selected after comparing the comprehensive ...
The installation workshop must be clean, or a temporary clean area should be set up, such as using a newly purchased color strip or plastic film to prevent dust from entering during the ...
The electromagnetic vacuum valve and the electromagnetic vacuum differential pressure valve are specially used to prevent the return oil of the mechanical vacuum pump. They are installed in the air ...
(1)According to the working pressure, there are low vacuum valves, high vacuum valves and ultra high vacuum valves. (2) According to the structural characteristics, there are butterfly valves, ...
There are three driving methods of vacuum valve: manual, electric and pneumatic. Which type of valve is used to consider the needs of the vacuum system. Install a gas release valve on the ...
The vacuum valve has the following characteristics: The pressure is lower than atmospheric pressure, and the pressure drop on the disc must not exceed 1 kgf / cm2. The operating temperature of the ...
