| 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 |
Pneumatic butterfly valves are powered by compressed air. As compressed air enters the pneumatic actuator, it drives internal components such as pistons or rack and pinion mechanisms to move, which in turn rotates the valve stem and butterfly disc to open or close the valve. The integration of a valve positioner enables precise control over the butterfly disc's rotation angle, allowing for accurate regulation of pipeline media parameters including flow rate and pressure.