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Pneumatic Wafer Butterfly Valve Spring Type - China Suppliers & Factory for DN40-DN600 Applications
| Valve Type: | Wafer butterfly valve | Structure: | Concentric |
| Standard: | EN593 | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | Sealing grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Pneumatic |
Characteristics
Pneumatic butterfly valves use compressed air as their power source. When compressed air enters the pneumatic actuator, it pushes the piston or gear rack and other components inside the actuator to move, which in turn drives the valve stem and butterfly plate to rotate, achieving the opening or closing of the valve. By installing a valve positioner, the rotation angle of the butterfly plate can also be controlled, thereby accurately adjusting parameters such as flow rate and pressure of the medium in the pipeline.
Advantages
1
Quick Opening and Closing Response
Powered by compressed air, the pneumatic actuator drives the butterfly plate to rotate, and the opening and closing time only takes a few seconds, far faster than some manually or electrically driven valves, suitable for working conditions that require quick opening and closing (such as emergency shutdown, system switching).
2
Adaptive Automation Integration
It can be paired with accessories such as solenoid valves, valve positioners, limit switches, etc. to achieve remote control, proportional adjustment, and status feedback. It can easily connect to industrial automation systems such as PLC and DCS to meet the needs of intelligent production.
3
Low Operating Cost
Pneumatic drive system has a simple structure, low failure rate, and a wide range of compressed air sources. Compared with electric drive, it does not need to consider complex protection issues such as explosion prevention and leakage, especially suitable for flammable and explosive scenarios such as chemical and mining.
Packing
📦
Standard export wooden case packaging
Application Scenarios
The application scope of pneumatic butterfly valves covers multiple fields such as municipal engineering, industrial manufacturing, and people's livelihood supporting facilities. The core revolves around the on/off control and flow regulation of fluid media, especially suitable for working conditions with limited space and requiring automated operation.
Frequently Asked Questions
Q
What is the working principle of a pneumatic wafer butterfly valve?
Pneumatic wafer butterfly valves use compressed air as the power source. When compressed air enters the pneumatic actuator, it drives the piston or gear rack to move, rotating the valve stem and butterfly plate to open or close the valve. A valve positioner can be added to enable precise flow or pressure control.
Q
What temperature range is this pneumatic butterfly valve suitable for?
This valve is designed for operating temperatures ranging from -20°C to 120°C, making it suitable for most standard industrial fluid handling applications including water, air, and mild chemical media.
Q
Can the pneumatic butterfly valve be integrated into automated control systems?
Yes. The valve can be paired with solenoid valves, valve positioners, and limit switches to support remote control, proportional flow adjustment, and real-time status feedback. It is fully compatible with PLC and DCS industrial automation systems.
Q
What is the sealing performance of this butterfly valve?
This valve features bidirectional sealing with a zero-leakage sealing grade. The concentric structure combined with investment casting workmanship ensures a tight and reliable seal in both flow directions, meeting high-performance requirements in industrial pipelines.
Q
Is this valve suitable for flammable or explosive environments?
Yes. The pneumatic drive system does not require electricity at the actuator level, eliminating risks associated with electric sparks or leakage in hazardous environments. This makes pneumatic butterfly valves especially suitable for use in chemical plants, mining operations, and other flammable or explosive scenarios.
Q
How is the valve packaged for export?
Each pneumatic wafer butterfly valve is packaged in a standard export wooden case, designed to protect the product during international shipping and handling, ensuring it arrives in perfect condition at its destination.