Pneumatic valve actuators from the brass ball valve configuration formed into double acting pneumatic actuator pneumatic actuator

and single acting pneumatic actuator, controlled by a solenoid valve to achieve valve switching. Intelligent control of pneumatic valve can

be quickly turned on or off line, on the pipe network can effectively control and manage.
Valve in the pipeline is mainly used to do

cut off the flow of media distribution and change direction, it only needs to rotate 90 degrees in the operation and a small torque can be

closed tightly. The most suitable valve do switch, shut-off valve used, but recent development has been designed to make it a throttle

valve and flow control purposes, such as V-type ball valve.
Pneumatic gate valve applications:
Valve itself is compact, reliable seal, simple structure, easy

maintenance, regular spherical surface and seal in the closed state, the media can not easily be eroded, easy operation and maintenance for

water, solvents, acids, and natural gas work in general media, and also applies to poor working conditions of media, such as oxygen,

hydrogen peroxide, methane and ethylene, in the various sectors has been widely used. Ball valve can be integral, it can be modular.
Pneumatic valve features:
Pneumatic valve is mainly used for cut off or connected to the line of medium, can also be used for fluid

regulation and control, pneumatic valve and other valve types, compared with a rotary output torque, open the quick, smooth and reliable

widely applicable, such as following advantages.
1, fluid resistance small, pneumatic ball valve of all categories of least resistance

in a fluid, even reduced diameter pneumatic valve, the fluid resistance is quite small.
2, the stem thrust bearing reduces friction

torque, smooth operation can stem the long-term flexibility.
3, the seat sealing performance, the use of Teflon and other seals made

of elastic material, the structure easy to seal, and the pneumatic valve of the valve closure increased capacity with medium pressure

increases.
4, stem seal, reliable, turning the stem only for transportation and do not do fake down movement, not easy to damage the

valve stem packing seal, and sealing ability increased with the increase of the pressure medium.
5, the PTFE and other materials have

good self-lubrication, the friction loss is small and the ball, so the pneumatic valve for long life.
6, download-type stem and stem

head convex order to prevent the exhaust valve stem, stem seal damage, such as fires, convex order and the body can form a metal contact,

to ensure that stem seal.
7, anti-static function: the ball valve, valve body is placed between the springs, can export the generation

of static electricity switching process.

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2011-05-19

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