Pneumatic Double-Offset High-Performance Butterfly Valve

The Pneumatic Double-Offset High-Performance Butterfly Valve is a reliable and efficient quarter-turn valve designed for industrial flow control and shut-off applications. The valve features a double-offset disc and shaft design combined with a pneumatic actuator, providing smooth operation, reduced friction, and reliable sealing performance.

The double-offset design allows the disc to move away from the valve seat during opening, significantly reducing friction between the disc and seat. This helps minimize wear, reduce operating torque, and extend the service life of the valve.

The valve is equipped with a high-performance resilient or soft sealing system, providing excellent shut-off performance and reliable sealing under a wide range of operating conditions. The pneumatic actuator enables fast and reliable automatic operation and can be configured for on-off or modulating control.

The valve can be equipped with positioners, solenoid valves, limit switches, air filter regulators, and other accessories, allowing easy integration with PLC, DCS, and industrial automation systems.

Key Features

• Double-offset high-performance butterfly valve design
• Pneumatic actuator for fast and reliable operation
• Low operating torque
• Reduced friction and seat wear
• Excellent sealing performance
• Reliable shut-off capability
• Compact and lightweight construction
• Suitable for automatic and remote operation
• On-off or modulating control available
• Easy integration with PLC and DCS systems
• Various materials, sizes, and pressure ratings available
• Easy installation and maintenance

Working Principle

The valve operates through a 90-degree rotation of the disc. The double-offset design causes the disc to move away from the sealing seat shortly after opening, minimizing contact and friction between the sealing surfaces.

When the valve closes, the disc moves into the seat and creates a tight seal. This design reduces wear on the sealing components and provides smooth and reliable valve operation.

The pneumatic actuator converts compressed air into rotary movement to open or close the valve. Depending on the application, the actuator can be configured as double-acting or spring-return.

Applications

The Pneumatic Double-Offset High-Performance Butterfly Valve is widely used in:

• Oil & Gas
• Petrochemical Industries
• Chemical Processing
• Power Generation
• Water Treatment
• HVAC Systems
• Water Supply and Distribution
• Cooling Water Systems
• Compressed Air Systems
• General Industrial Process Control

It is suitable for controlling and isolating a wide range of media, including water, air, gas, oil, steam, and other compatible industrial fluids.

Product Advantages

The double-offset structure reduces friction between the disc and seat, resulting in lower operating torque, reduced wear, and longer service life. The high-performance sealing system provides reliable shut-off performance while maintaining efficient operation.

Combined with a pneumatic actuator, the valve provides fast response and dependable automatic control, making it suitable for applications requiring frequent operation and remote control.

The valve can be customized according to specific operating requirements, including nominal size, pressure rating, valve body material, disc material, sealing material, actuator type, connection type, control accessories, and fail-safe configuration.

Technical Specifications

The Pneumatic Double-Offset High-Performance Butterfly Valve offers an excellent combination of high flow capacity, low operating torque, reliable sealing, fast pneumatic operation, and long service life, making it a practical solution for a wide range of industrial flow control and shut-off applications.