Butterfly Valve Hydraulic Actuator

一．Product Introduction

For a butterfly valve to start opening from a completely closed position, higher torque is required to overcome the friction between the seat and valve body. Lower torques are needed to keep the valve moving in the middle section of the valve stroke. Butterfly valve hydraulic actuator is an ideal device to meet this request with all required certifications, which is ideal product for butterfly valve use in various types of industries.

二．Product Features

1. Torque Adaptability
   • Provides high starting torque to overcome the friction between the butterfly valve seat and body when opening from a fully closed position, and automatically adjusts to lower torque for smooth operation in the middle stroke.
2. Reliable Hydraulic Performance
   • Adopts advanced hydraulic circuit design, ensuring stable pressure output and precise control of valve opening/closing speed.
   • Equipped with overload protection components to prevent damage from excessive torque, enhancing operational safety.
3. Robust Construction
   • Manufactured with high-strength alloy materials and undergoes anti-corrosion treatment, suitable for harsh industrial environments (such as high humidity, corrosive media).
   • Sealing system meets high standards, effectively preventing hydraulic oil leakage and external medium intrusion.
4. Certification Compliance
   • Complies with international industry certifications (such as ISO, API, etc.), ensuring its quality and performance meet global market requirements for various industrial applications.

三．Technical Data

1. Structural Parameters

• Material: High-strength alloy (with optional stainless steel for corrosion-prone environments)
• Surface Treatment: Anti-corrosion coating (epoxy/polyurethane)
• Connection Type: Flange connection (compatible with standard butterfly valve flanges)
• Mounting Configuration: Direct mounting to butterfly valve shaft

2. Hydraulic Parameters

• Working Pressure Range: 10–25 MPa
• Hydraulic Fluid: Mineral oil (ISO VG 32–46) or synthetic hydraulic fluid
• Flow Rate: 5–20 L/min (depending on model)

3. Torque & Speed Parameters

• Starting Torque: 500–10,000 N·m (depending on model, at maximum working pressure)
• Operating Torque (Mid-Stroke): 300–8,000 N·m
• Valve Opening/Closing Time: 5–30 seconds (adjustable via flow control valves)

4. Temperature Range

• Operating Temperature: -20℃–+80℃ (standard); optional low-temperature (-40℃–+80℃) or high-temperature (-20℃–+120℃) versions
• Storage Temperature: -40℃–+100℃

5. Electrical & Control Parameters

• Control Voltage: DC 12V, DC 24V, AC 110V, AC 220V (optional)
• Control Signal: Analog (4–20 mA, 0–10 V) or digital (on/off, bus communication like Profibus, Modbus)
• Protection Grade: IP65 (standard), optional IP67 for waterproof requirements

6. Certification

• ISO 9001 Quality Management System
• API 6D (Pipeline Valves)
• CE Certification (for European market)