• Otis-Axelson Fail-Safe Hydraulic Actuator

    Our Otis-Axelson™ Hydraulic Actuator is designed for simplicity, ease of maintenance and adaptability. It has fewer parts than most other hydraulic actuators, which improves field performance. This actuator is designed to close upon loss of control pressure (fail-safe).



    The actuator’s unique design has no traveling seals, which contributes to the longevity of the seal packages. Optional cold service seal packages enable the actuator to exceed performance standards for cold, hostile environments.

    Limit switches, valve position indicators, fusible and standard lockout caps, stem protectors, mechanical and hydraulic opening assemblies are also available.


    • Ease of maintenance – Fewer parts improve performance and reliability. The unit can be redressed without special tools or external pressure sources. Piston and upper stem packing is easily removable utilizing actuator service disconnect bolts. Standardized lower stem sizes simplifies spare parts requirements.
    • Proven reliability – API 6A, PR2 Appendix F qualified packing.
    • Visual open-close indication – Upper stem extension indicates gate position at a glance.