Product Name: ASTM A216 WCB Ball Control Valve
Key Features: Trunnion Mounted
Material: ASTM A216 WCB
Size: 10 Inch, DN250
Pressure: Class 300 LB, PN50
Connection: Flanged
Actuator: Scotch Yoke Pneumatic Actuator
Product Range
Body Material: Carbon Steel, Stainless Steel, Alloy Steel
Size Range: 10-48 Inch, DN250-DN1200
Pressure Rating: Class 150-2500 LB, PN6-PN320
End Connection: Flanged, Butt Welded
Temperature Range: -40°C to +300°C
Actuator Options: Single and Double Acting Pneumatic Actuator
Trunnion Mounted Ball Control Valve
Trunnion mounted ball control valves equipped with scotch yoke pneumatic actuators are ideal for heavy-duty applications in industries such as oil, natural gas, coal processing, mining, and refining. These valves offer superior performance, durability, and reliable operation in demanding environments.
1. Operation
Compressed air enters the cylinder, pushing the piston to move. The scotch yoke mechanism converts the piston's linear motion into rotational motion, driving the output shaft and controlling the valve’s operation.
2. Key Features
Symmetrical Scotch Yoke Mechanism: Provides a balanced torque curve for smooth operation, ensuring consistent control under heavy-duty conditions.
Robust Trunnion Mounted Valve Body: Manufactured in accordance with ISO 17292 and API 6D standards, the trunnion mounted design ensures stability and strength, allowing the valve to handle high pressures and flow rates.
Flexible Valve Packing Options: The valve packing can be customized with braided flexible graphite seals or PTFE seals, providing reliable tightness and lubrication based on specific working conditions.
Seat Structure Options: Depending on operational needs, the valve can be fitted with soft seats, metal-to-metal seats, or fireproof seats to ensure optimal performance and safety.
Auxiliary Sealing Structure: An emergency sealing system with grease filling valves at the valve seat and stem can be activated to temporarily seal leaks, offering critical protection in emergencies.
Extendable Stem Design: The stem can be lengthened for applications where the valve is buried underground, offering greater flexibility in installation.
