SUBSEA valves automation

For depths of up to 1600 meters

Already in the early 1970s, Fahlke received the first orders for the construction of high-quality hydraulic actuators for subsea use. The challenge: They should perform their work under the most extreme conditions on offshore platforms in the North Sea or in subsea lines. In the meantime, our double-acting, spring-closing or spring-opening subsea hydraulic actuators are in use all over the world.



Then as now, the subsea line of actuators impresses with its high quality: All components are corrosion-free. A mechanical position indicator is included in the standard version. All Fahlke Subsea actuators can be supplied with a special manifold with diver coupling, electrical end position signalling and an adaptation according to ISO 13628 for the emergency actuation.


We offer 100% functional reliability through a test in our subsea test chamber, where up to 8 actuator valve units are simultaneously tested under real conditions.

Technical data

  • ROV compatible actuator valve units with individual controls
  • Easy visual or tactile valve position indicator
  • Water-tight, customer-specific limit switch solutions
  • Special controls equipped with quick couplings for easy hydraulic coupling or separation of the supply for divers
  • Double-acting
  • Single-acting/spring-return
  • Torques up to 100,000 Nm


  • Emergency actuation via ISO adapter
  • End position signalling
  • Subsea manifold
  • Electrohydraulic controls