The Neles scotch yoke N1 series actuator is designed for use with quarter-turn valves in both modulating control and on-off service. The N1 actuator’s robust design ensures long life in harsh environments due to unique features such as its internal tie-rod mechanism. This heavy-duty actuator has all major approvals to meet industry standards and customer process requirements.
Neles™ heavy duty scotch yoke actuator, series N1
Neles™ heavy duty scotch yoke actuator, series N1
Key Features
- Suitable for on/off, modulating, and control valve applications in general service, protective service, and safety applications eg. ESD or HIPPS
- Ductile cast iron center body, fabricated carbon steel power, and spring module provide rugged actuator construction. Alternative materials available upon request
- Suitable for safety-integrated systems up to and including SIL 3 in accordance with IEC 61508.
- The vent valve has built-in non-return function for IP67
- Secondary vent valve function is to detect leakages in the rod seal area of pneumatic cylinder
- Springs are unbuckling, lifetime lubricated, and epoxy coated
- Ball bearing, Flexi joint, and the hardened yoke thrust pin bearing are all incorporated into the actuator for a longer lifetime, smoother operation
Specifications
Series: | Pneumatic quarter-turn double-opposed piston rack and pinion actuator |
Version: | Double acting |
Max operating pressure: | 8 bar |
Torque range: | 4 Nm to 5005 Nm |
Temperature ranges: | General : -20 °C to +80 °CHigh : -20 °C to +125 °CArctic : -60 °C to + 80 °C |
Protection class: | IP67M, IP68M |
ATEX class: | ATEX 94/9/EC |
Mounting face: | ISO 5211, VDI/VDE 3845 |