Description
1. Overview of Scotch Yoke Pneumatic Actuator
The Scotch Yoke pneumatic actuator is a quarter-turn piston-driven actuator with a compact, durable design. It is specifically engineered for valves requiring 90° rotation, such as butterfly, ball, and plug valves. The actuators are available in single-acting (spring-return) and double-acting configurations to suit different operational requirements:
- Single-Acting Actuator: Automatically resets to the initial position during power or air loss, ensuring fail-safe operation.
- Double-Acting Actuator: Maintains the valve position during air loss, suitable for applications where reset is not required.
Applications:
- Industrial automation systems
- Oil and gas pipelines
- Chemical processing plants
- Water and wastewater treatment
2. Technical Parameters
- Material: Aluminum alloy, carbon steel, ductile iron
- Actuator Type: Single-acting or double-acting
- Rotation Range: 0° ~ 90° (±5° adjustable)
- Air Consumption: 4.35L
- Weight: 160Kg
- Air Supply Pressure: 0.4 ~ 0.8MPa
- Temperature Range:
- Standard: -20℃ ~ +80℃
- High Temperature: -20℃ ~ +150℃
- Low Temperature: -40℃ ~ +80℃
- Certifications: SIL3, ISO, CE, IP67 protection grade
- Connection Standard: ISO 5211, VDI/VDE3845 NAMUR compliant
- Accessories: Positioners, filter regulators, amplifiers, pneumatic control valves, limit switches
3. Key Features
- Versatile Applications: Compatible with 90° rotation valves, including ball, butterfly, and plug valves, for on/off or flow regulation control.
- Optimized Torque Design:
- DRG01 Series: Symmetrical design delivers maximum torque at 0° and 90°, ideal for ball valve torque profiles.
- DRG02 Series: Asymmetric design provides higher starting torque, matching butterfly valve torque characteristics.
- Durability: Hard chrome plating on the cylinder ensures extended service life. High-frequency quenched and ground tracks and self-lubricating sliders offer permanent usability.
- Comprehensive Accessories: Includes manual handwheel, hydraulic manual override, limit switches, solenoid valves, positioners, and other control components.
- Modular Design: Simplifies installation, maintenance, and storage, offering maximum flexibility and efficiency.
