KOSO 9000 Series Actuator with STV D373H-25C Hard Seal Butterfly Valve for Industrial Process Control

KOSO 9000 Series pneumatic actuator paired with STV D373H-25C hard seal butterfly valve is a high-performance integrated control valve assembly. It features stable driving, reliable sealing, and high-temperature resistance, widely used for fluid regulation and shut-off in thermal power, petrochemical, oil & gas, and industrial process control systems.

• Stable and responsive pneumatic rotary actuation
• Triple eccentric hard seal structure for zero leakage
• High temperature and high pressure resistance
• Excellent wear resistance and long service life
• Compact structure for easy installation and commissioning
• Compatible with various valve positioners and accessories
• Suitable for harsh industrial working environments
• Low operating torque and energy saving
• Wafer type connection for convenient pipeline installation
• Wide adaptability to steam, oil, gas and high-temperature media

• Thermal power plants and boiler systems
• Petroleum refinery and oil & gas processing
• Petrochemical and chemical engineering
• Metallurgical and steel industry
• Energy and power generation systems
• Industrial process fluid control
• High-temperature pipeline regulation
• Heating and steam supply systems

Q: What is the seal type of this valve?

A: It adopts triple eccentric metal hard seal.

Q: Is it suitable for high-temperature media?

A: Yes, it can work stably under high-temperature conditions.

Q: What acting modes does the actuator support?

A: Double acting and spring return are both available.

Q: Can it be equipped with a valve positioner?

A: Yes, it supports most standard valve positioners.

Q: What industries is it mainly used in?

A: It is widely used in power, petrochemical, oil & gas and metallurgy.

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