News - Pneumatic valve

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Home > News > Pneumatic valve

Pneumatic valve - 2014-03-14 10:11:17

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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