The subsea rotary vane type actuator is ideal for double acting (open/close) valve control. The rotary vane can also be utilized in fail-safe applications where a hydraulic accumulator is used to provide power for the fail-safe valve stroke
Actuator for quarter-turn applications on natural gas pipelines utilizing gas over oil power pressure. Concentric shape and balance are perfect for high vibration applications. Compact design ideal for platform topsides, ESD and linebreak protection.
Actuator for gate, rising stem gate, rising stem ball and globe valve applications on natural gas pipelines utilizing gas over oil power pressure. Ideal for ESD, linebreak and high thrust requirements.
Shafer designs, builds and tests the complete valve operating system, including the actuator, controls and accessories. When you specify Shafer, you receive a complete system, factory tested, field proven and guaranteed.