Year1
- 规格范围：
- DN15-DN300
- 温度范围：
- -40℃≈500℃
- 压力范围：
- PN16-PN100
Introduction to pneumatic flange ball valve
Pneumatic flange ball valve in English only requires pneumatic rotation and a small rotational torque to close tightly. The completely equal valve body cavity provides a straight flow path with little resistance for the medium. It is generally considered that the ball valve is most suitable for direct opening and closing, but recent development has designed the ball valve to have the function of throttling and controlling flow. The main feature of the ball valve is that it has a compact structure and is easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas, and is also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be integral or combined. Pneumatic flange ball valve is a ball valve equipped with a pneumatic actuator. The execution speed of pneumatic actuators is relatively fast and does not require workers to do it themselves, saving human resources and time to a large extent. Pneumatic flange ball valve is evolved from the globe valve. It has the same rotational movement, but the difference is that the cock body is a sphere with a circular through hole or channel passing through its axis. The ratio of the spherical surface to the channel opening should be such that when the ball rotates, the entire spherical surface should be present at the inlet and outlet, thereby intercepting the flow.
Advantages of imported pneumatic flange ball valve
The fluid resistance is small, and its resistance coefficient is equal to that of a pipe section of the same length.
Simple structure, small size and light weight.
Tight and reliable, plastic is currently widely used as the sealing surface material of ball valves with good sealing properties and has also been widely used in vacuum systems.
Easy to operate, quick to open and close, just rotate from fully open to fully closed, convenient for long-distance control.
Easy to maintain, the pneumatic ball valve has a simple structure, the sealing ring is generally movable, and it is easy to disassemble and replace.
When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes, it will not cause erosion of the valve sealing surface.
It has a wide range of applications, with diameters ranging from a few millimeters to several meters, and can be applied from high vacuum to high pressure.
Basic parameters of imported pneumatic flange ball valve
Specification range
Temperature range
Pressure range
Valve body material carbon steel/stainless steel
Valve stem material
Valve cover material carbon steel/stainless steel
Valve core material
Connection method flange connection
Applicable scope: water, oil, steam, gas, gas and some corrosive liquids.
Place of Origin, Germany
Product Brand, Germany r Olschen
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