LB Bentley has continued the development of its advanced rotary actuator, OPTItork™, by the introduction of an actuator to operate a ¾” 15K Rotary Gate Valve. This actuator complements the ½” actuator launched in 2016.
The OPTItork™ is engineered to achieve requirements for both more stringent signature tests and a higher number of endurance cycles. It also has a greater available opening torque allowing it to operate on larger bore valves, operating at higher differential pressures whilst offering a reduced installation envelope.
The OPTItork™ actuators are fully certified to perform at temperatures ranging from -4°C to +66°C at installed depths of 10,000ft (3,048m) and are now available to operate the ⅜”, ½” and ¾” . LB Bentley rotary gate valves at differential pressures of up to 15,000psi (1,034bar).
A fundamental component of OPTItork™ is its helix sleeve. This has been fully re-engineered to ensure maximum torque during the opening stroke, without compromising performance on the return stroke. Internal bearings and seals have been reconfigured to achieve a performance that easily surpasses twice the number of operating cycles demanded by API 17D 2nd Ed.
