Subsea Actuators

• Rotork Fluid System has an installed base of subsea actuators dating back to 1992 that are operating at depths from 30m to over 2,500m . Scotch yoke, rack and pinion, and linear designs are available in both double-acting and spring-return configurations.

Solutions for Nuclear Power

• Rotork Fluid System supplies "special build" actuators for the nuclear power industry designed and manufactured to meet the stringent requirements of IEEE 323-1974, IEEE344-1975 and IEEE382-1985

Fast Acting Actuators

• When very fast operating times are required (for example on steam turbine protection service), Rotork Fluid System can supply special actuators capable of performing the emergency operation within 0.1 sec.

Partial Stroke Systems

• A partial stroke system is a control option to provide a functional test of the actuator/valve assembly with minimal effect on valve flow. They are easily adjusted to provide for any degree of full stroke. Rotork Fluid System can provide a system to meet virtually any application requirement.

Fire Protection Systems

• Rotork Fluid System actuators and control systems can be customized to withstand exposure both to fire and very high environmental temperatures. Developed and tested for use with several actuator models, a range of proprietary fire-proof systems is available.

Closed Loop Systems

• A Closed loop system is a control option to prevent the intrusion of outside atmosphere into the actuator. It is available to meet specifications specifically requesting a “clean breath" system.
  

Power Handwheel

• The Rotork Fluid System (RFS) PHW is a versatile valve operator designed to work with both quarter-turn with gearbox combinations and rising stem linear designs. It operates either as a manual handwheel or hydraulically via an external hydraulic power unit connected to the quick-connect fittings provided
  

Hydraulic Damper

• The DH range of quarter-turn hydraulic vane dampers are engineered to provide a simple, reliable solution to inherent problems often seen in swing check valve applications: namely down line surges from rapid disc reseating and excessive valve wear due to the disc flutter produced at some flow rates.