A hydraulic actuator concentric butterfly valve Produced by ZHONGGUAN valve combines the features of a concentric butterfly valve with a hydraulic actuator for automated operation.
hydraulic actuator concentric butterfly valve are characterized by a disc that rotates around a central shaft to control flow, while hydraulic actuators use fluid pressure to move the valve. This combination allows for precise and powerful control of fluid flow in various applications, particularly where automation is desired and higher torques are needed.
I. Working Principle
Industrial fluid control systems regulate flow by opening and closing butterfly valves. The hydraulic butterfly valve uses a hydraulic drive system to convert fluid pressure into mechanical energy, driving the valve shaft to complete a 90° rotational motion. Compared to electric/ pneumatic actuators, the hydraulic system provides higher torque output and better impact resistance.
II. Core Structure and Functions
Valve Body Components
Disc: Opens and closes the flow path by rotating 90°.
Valve Stem: The core transmission component connecting the actuator to the disc.
Sealing System: EPDM soft-seal valve seat ensures zero leakage.
Connection Method: Flanged/wafer design (compliant with ANSI/EN standards).
Hydraulic Actuator
Oil pressure drives a piston cylinder, outputting linear force → converting to rotational torque.
Standard 90° stroke, response time ≤ 3 seconds.
Optional single-acting (spring return) or double-acting (bi-directional hydraulic drive).
III. Technical Advantages
Feature
Technical Value
High Precision Control
Hydraulic servo system positioning accuracy ±0.5°
High Torque Output
Up to 10,000 N·m (PN40 working condition)
Failure Protection
Spring automatic return for emergency shutdown
Environmental Adaptability
Temperature range -40°C~150°C, IP68 protection rating
Energy-saving Feature
Zero power consumption in pressure-holding state
Hot Tags: Hydraulic Actuator Concentric Butterfly Valve
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