Pneumatic pneumatic valve failure analysis and solution

Pneumatic pneumatic valve consists of pneumatic actuators and pneumatic valve. Pneumatic pneumatic valve is mainly through the pneumatic valve rod rotating plate opening and closing. The pneumatic valve is mainly used by the pneumatic valve. , of course, it also can be used as adjustment and proportion adjustment to operate, but it with fast installation of the pneumatic valve is a significant difference, it does not have a similar manual operation function, pneumatic pneumatic valve can be closed at any time and proportion regulating function and performance such as emergency shut off. Pneumatic pneumatic valve of the main control mode are hydraulic, electric, worm gear, electric hydraulic linkage control method commonly used in buildings, food, medicine, heating, chemical, petroleum, electric power and other industries.



pneumatic pneumatic valve and pneumatic pneumatic valve in use for a long time, there will be a leak between sealing surface: 1. Between the sealing surface impurities; 2. Lining aprons wear or aging damage.

pneumatic valve sealing surface leakage solution.


1, removing debris, don't damage the sealing surface.


2, replace the rubber lining ring.


running process of pneumatic pneumatic valve on both ends of the axial leakage reason analysis:


1, liner wear aprons cooperate with pneumatic valve stem hole.


2, '0' sealing ring wear


pneumatic valve leakage solution


1, replace the rubber lining ring.


2 type ring, replace '0'.


in the transmission process of pneumatic valve plate is not agile open closed:


1, pneumatic valve stem jamming in contact with the shaft sleeve.


2, external things small resistance or transmission part pneumatic valve rod;


pneumatic pneumatic valves open and close the solution of rigid


1, deburring, and apply the grease lubricant.

2, removal or correct or replace the pneumatic valve stem.

gas supply process of the analysis of the causes of pneumatic pneumatic valve can not automatically opening and closing:


1, the air supply pressure is too high by the specification;


2, '0' form of rubber ring worn;


3, joint gasket was damaged.


gas supply, pneumatic pneumatic valve cannot be automatically opening and closing.


1, adjust the gas supply pressure to the specified value.

2, change the O ring.
3, replace the gasket.