Pneumatic Ball Valve

A Pneumatic ball valve combines a standard quarter-turn ball valve with a pneumatic actuator, allowing for automated control of fluid flow. This setup is highly valued in industrial automation for its durability and fast response times.
Key Components
Ball Valve: The physical mechanism containing a rotary ball with a hole through the center.
Pneumatic Actuator: A device mounted on top of the valve that uses compressed air to rotate the ball.
Mounting Pad: Usually following the ISO 5211 standard to ensure the actuator fits the valve perfectly.
Technical Specifications
1. Valve Body Specifications
Size Range: 1/2" to 12" (Standard industrial sizes).
End Connections: Screwed (NPT/BSP), Flanged (ANSI 150/300, PN16/40), or Triclamp (for hygienic use).
Body Materials: * Stainless Steel (304/316): Best for corrosion resistance.
Carbon Steel (WCB): High-pressure and high-temperature environments.
Cast Iron: General water and air services.
Seat Material: PTFE (Standard), Reinforced PTFE (High pressure), or Metal-to-Metal (High temperature).
2. Actuator Specifications
Operating Media: Filtered compressed air (dry or lubricated).
Air Supply Pressure: 2.5 bar to 8 bar (approx. 40 to 115 PSI).
Type of Action:
Double Acting: Air is used to both open and close the valve.
Single Acting (Spring Return): Air opens the valve, and internal springs automatically close it if air pressure is lost (fail-safe).
Rotation: 90° with ±5° adjustment at both ends.
3. Environmental Ratings
Temperature: Standard actuators operate from -20°C to +80°C.
Protection Class: Often rated IP67 or IP68 for weatherproofing and dust protection.
Common Accessories
Solenoid Valve (5/2 or 3/2 way): Controls the air flow to the actuator via an electrical signal.
Limit Switch Box: Provides remote visual or electrical confirmation of the valve's position (Open/Closed).
Air Filter Regulator: Ensures the air entering the actuator is clean and at the correct pressure.