| Customization: | Available |
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| Media: | Water,Oil,Gas |
| Driving Mode: | Pneumatic |
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Pneumatic butterfly valve is a common industrial valve that controls the opening or closing or adjustment of the valve by driving the actuator with compressed air.
Main components
1. Valve body: usually round or oval, with a butterfly plate inside
2. Butterfly plate: a disc-shaped component that controls the flow of the medium by rotating
3. Valve stem: the shaft connecting the butterfly plate and the actuator
4. Pneumatic actuator: converts air pressure into mechanical motion
5. Positioner (optional): used to accurately control the valve opening
Working principle
- When compressed air enters the actuator, it pushes the piston or diaphragm to move
- Converts linear motion into rotational motion through a gear rack or connecting rod mechanism
- Drives the valve stem and butterfly plate to rotate to open or close the valve
- The standard configuration is 90° rotation (from fully closed to fully open)
Main features
1. Simple structure: few parts, light weight, and small size
2. Quick operation: 90° rotation can complete the switching action
3. Good flow regulation performance: precise control can be achieved through the positioner
4. Easy maintenance: most designs allow online maintenance
5. Lower cost: more price advantage than other types of valves
Application areas
- Water treatment system
- Chemical industry
- Oil and gas
- Power industry
- Food and pharmaceutical
- HVAC system
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DN
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DN50~500mm (Other port size, please indicate when ordering )
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Nominal Pressure
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1.0~1.6Mpa (Other pressure standard, please indicate when ordering)
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Body material
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Ductile iron (Q), WCB (C), SS304 (P)
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Seal material
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NBR (X1), NR (X2), EPDM (X3), FPM (X4)
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Medium temp.
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W1: -20~80ºC, W2: -20~150ºC
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Connection mode
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Flange, Wafer,Lug
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Action mode
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Double acting, Single acting normally closed, Single acting normally open
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Control mode
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Standard switch type, Integral regulating type, Integral switch type, Field bus type
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Tianjin Yoakor Machinery Equipment Co., Ltd. founded in 2018, is an ISO 9001 certified company,committed to manufacturing valves& related products for water works and Environmental protection machinery equipment.Now the company has become a set design, development,production, manufacturing, sales in one of the valve manufacturing enterprises.The company's mechanical
processing, welding heat treatment, The production and testing center includes assembly pressure testing, physical and chemical testing, etc.
Yoakor mainly producebutterfly valve(Concentricand Eccentric), gate valve(Resilient seat,Metal seat),,check valve,globe valve,strainers,discharge valves, screw conveyors and environmentally friendly dust removal equipment. Supported by our many years' experience and expertise in this field.
We can also offerOEM &ODM products .Yoakor philosophy is to offer high cost performance products with optimal service.
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