News - Pneumatic valve

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Home > News > Pneumatic valve

Pneumatic valve - 2014-03-05 10:58:34

Pneumatic valve pneumatic actuators by a ball valve configuration composed of a double-acting pneumatic actuators into pneumatic actuators and single-acting pneumatic actuators, controlled by a solenoid valve, the valve by switching action. Pneumatic valve can achieve intelligent control, fast turn on or off the pipe, the pipe network can effectively control and manage.

Valve in the pipeline is mainly used for cutting, distribution and change the flow direction of the medium, it only needs to operate with a 90-degree rotation and a small torque can be closed tightly. Most suitable valve to make the switch, cut off valve, but recent development has been designed so that it has the ball and control the flow of the throttle, such as V-ball.

Pneumatic valve applications:

Compact ball itself structure, reliable sealing , 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 gas work in general media , but also for harsh working conditions of media , such as oxygen, hydrogen peroxide , methane and ethylene , in various sectors has been widely used. The ball valve may be integral or may be modular .

Pneumatic valve features:

Pneumatic valve is mainly used for cut off or connected line of medium , can also be used for fluid regulation compared with the control , pneumatic ball valves and other types of rotary torque output with open fast , stable and reliable , widely applicable , etc. Here are some advantages.

1 , Fluid resistance , pneumatic ball valve is the smallest of all categories in a fluid resistance , even necking pneumatic valve, the fluid resistance is quite small.

2 , The stem thrust bearing to reduce friction torque, smooth and flexible stem long-term operation.

3 , Good seat sealing performance, the use of an elastic material such as PTFE seals , structure easy to seal , and pneumatic ball valve closure increased capacity with medium pressure increases.

4 , Valve stem seals , reliable, due to the rotation of the stem only for imitation shipped without doing lifting exercise, easy to damage the valve stem packing and sealing ability increased with increasing pressure medium .

5, Due to PTFE and other materials with good self- lubricating, and friction losses sphere and consequently pneumatic valve long service life.

6 , Download style stem and stem head convex order to prevent the stem spray , such as stem seal damage caused by fire , convex order and the body can form a metal contact , ensure the valve stem seals.

7 , Anti-static function: a spring between the ball , stem, body, static electricity generated by the switching process can be exported.

Keywords:butterfly valve ,knife gate valve,ball valve,globe valve,slurry gate valve

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