Key features/benefits
PAC-S Series Pneumatic Actuator is designed suitable for general purpose of valves and damper automation and offer a wide range of torques enable to operate ball, butterfly, plug valves, dampers or any device that requires a quarter turn operation for on-off or modulating service. Scotch Yoke actuators are available with symmetric yokes. Asymmetric yoke provides more constant torque throughout – at both the break points and end positions.
Specification
- Comply to UNI EN 15714-3:2009 standard
- ISO Connection Standard：UNI EN ISO 5211
- Auxiliary Connectioin：NAMUR
- Control Angle：90°
- Torque：Relative to control pressure. Please refer to torque selection table.
- Coating Protection：Hard anodized surface, epoxy powder coated end cap. Surface coating can be customized.
Working Conditions
| Working Temperature | Standard：-20℃~+80℃
High Temperature：-20℃~+150℃ Low Temperature：-50℃~+60℃ |
| Supply Pressure | Min. 2 bar, Max. 8 bar |
| Working Medium | Filtered and dry compressed air or inert gas, without needing lubricant |
Features And Benefits
1.Provide with the self-lubricated bearing and guide ring between the sliding parts.
- Less friction between piston and cylinder
2.Both pin, yoke and bearings are made of Alloy Steel, the hardness is higher than 50 HRC.
- Effective resistance to the actuator internal dynamic wear;
3.Rolling friction between yoke and bearing
- Reduced the friction between the piston and shaft;
4.Scotch yoke with rolling friction (transforming rotary motion into linear motion using piston and shaft without teethes/gears)
- Reduced friction between piston and shaft with consequently less wear on the relevant parts
- High opening and closing torques provided by scotch-yoke concept;
- Compared with rack and pinion actuator, reduced actuator volume (30%) and installation space;
- Compared with rack and pinion actuator, reduced actuator weight (30%) and construction of equipment’s.
- Compared with rack and pinion actuator, reduced the air consumption ( 40% )
- Faster switching speed than rack and pinion actuator (40% for double acting,20% for single acting)
5.Cylindrical cylinder
- Reduced wear of the sliding piston parts with low roughness of the surface.
6.SIL3
- Meet the requirements of SIS and guarantee the highly reliable and safe operation
7.ATEX Certificate
- Allow products to be installed in the potential explosive environments.
Options
- Direct mount solenoid valves
- Monitor/Position confirmation limit switches
- Electro-Pneumatic positioner 4-20m input
- Pneumatic positioners 3-15 PSI input
