support@kanede.com
Search
0
Double acting scotch yoke pneumatic actuator for valves
- Scotch yoke design generates large opening and closing torque
- Piston multiple guides delivers smooth operation
- Precision machined parts ensuring safe operation and long service life
- Low air consumption
The double acting scotch yoke pneumatic actuator is designed for reliable valve automation in low-temperature environments (down to -40°C / -40°F). Its robust scotch yoke mechanism ensures smooth, high-torque operation, making it ideal for critical applications in oil & gas, cryogenic processing, and industrial refrigeration.
The Scotch yoke pneumatic actuator is a high-performance valve automation device, designed for durability, precise torque control, and smooth operation. Its robust Scotch yoke mechanism ensures consistent force output, making it ideal for ball valves, butterfly valves, and plug valves in industries like oil & gas, water treatment, and power plants.
1. High Torque Output
• Scotch yoke mechanism converts linear motion into high rotational torque, ideal for large or high-pressure valves.
• Consistent torque throughout the stroke, unlike rack-and-pinion designs that lose torque at the end positions.
2. Reliable & Durable Design
• Fewer moving parts compared to rack-and-pinion actuators, reducing wear and maintenance.
• Double acting scotch yoke pneumatic actuator with robust construction ensures long service life in harsh environments.
3. Double-Acting Efficiency
• Bi-directional air operation (air pressure opens & closes the valve) for fast response.
• Fail-safe options available with spring return (optional).
4. Compact & Space-Saving
• More torque in a smaller package compared to other actuator types.
• Easy mounting (ISO 5211 standard) for quick installation.
5. Low-Temperature & Harsh Environment Performance
• Special seals & lubricants allow operation down to -40°C (-40°F).
• Corrosion-resistant materials (stainless steel, epoxy coating) for offshore, chemical, and cryogenic applications.
6. Low Maintenance & Cost-Effective
• Minimal servicing required due to simple, rugged design.
• Long lifespan reduces replacement costs.
Specification：
Comply to UNI EN 15714-3:2009 standard
ISO connection standard：UNI EN ISO 5211。
Auxiliary connectioin：NAMUR,VDI/VDE3845
Control angle：90°(-5°~+3°)。
Torque：Relative to control pressure and type.
Working Condition：
Operation temperature：-50℃~+60℃
Pressure：2-8bar
Operating Medium：Filtered compressed air dry or lubricated.The pressure condensation point in accordance with (ISO 8573-1:2010, Class 3) has to be 10℃under ambient temperature.
The maximum particle size in accordance with (ISO 8573-1:2010, Class 5) should not exceed 40 µm.
Double acting scotch yoke pneumatic actuator Benefits：
1.Corrosion-resistant connectors All connection bolts are stainless steel with good corrosion resistance 2.Piston ring The piston guide ring, made of ultra high molecular polymer, has an extremely low coefficient of friction, while the material has high hardness and excellent wear resistance, providing precise guidance and long service life. 3.Body The cylinder body is processed with high precision and anodized. The thickness of the oxide layer is more than 20μm. It has low friction coefficient and excellent anti-corrosion and wear resistance. 4.Shaft bearing Prevent direct contact between shaft and cylinder body, ensure the positioning accuracy of drive shaft, reduce friction loss, make the double acting scotch yoke pneumatic efficient operation. 5. Piston bearing Ensure the positioning accuracy of the piston, so that the piston can be smooth and smooth operation, prevent shifting. 6. Pin connection The fork and the drive shaft are connected by pins to ensure that the fork and the drive shaft run synchronously. At the same time, the pins also play a role in preventing the drive shaft from flying out, which is a reliable and safe design. |
Part Number and Material：
Schedule：
Pos | Description | Material |
1 | Cylinder 1 | Aluminium Alloy |
2 | Piston | Aluminium Alloy |
3 | Shaft | Alloy Steel |
4 | Yoke | Alloy Steel |
5 | Piston pin | Alloy Steel |
6 | Yoke pin | Alloy Steel |
7 | Bearing | Alloy Steel |
8 | Upper circlip | Stainless Steel |
9 | Lower circlip | Stainless Steel |
10 | Upper washer | Crystalline Polymer |
11 | Lower washer | Crystalline Polymer |
12 | Upper shaft O-ring | NBR |
13 | Lower shaft O-ring | NBR |
14 | Upper shaft bearing | Crystalline Polymer/Graphite Copper Bushing |
15 | Lower shaft bearing | Crystalline Polymer/Graphite Copper Bushing |
16 | Upper piston bearing | Crystalline Polymer |
17 | Lower piston bearing | Crystalline Polymer |
18 | Piston ring | Crystalline Polymer |
19 | Piston O-ring | NBR |
20 | Piston support chip | Crystalline Polymer |
21 | Connection plate O-ring 2 | NBR |
22 | Connection plate 2 | Aluminium Alloy |
23 | Plate socket screw 2 | Stainless Steel |
24 | Cover socket screw | Stainless Steel |
25 | Nut O-ring | NBR |
26 | screws | Stainless Steel |
27 | End Cover Seal Ring | NBR |
28 | Double Acting End Cover | Aluminium Alloy |
29 | Set Screw | Stainless Steel |
Note: 1)180-260 body is split type.
2)140-260 not included.
Above illustration for internal structure demonstration only,not for all models and parts.
KANEDE CONTROLS. produces high quality solutions for pneumatic and electric valve automation.
E-mail: support@kanede.com
Tel: 0086-519-85557268
Fax: 0086-519-85557368
Add: No. 206 Yuntaishan Road., Xinbei District, Changzhou, Jiangsu province, China
