Actuation Systems

An essential part of our design process is understanding the critical functionality of our customer’s products under test and their requirements to follow and exceed current industry standards.  With that in mind, KW Designed Solutions has developed and engineered numerous Pressure Vessels with clever Actuation Systems incorporated into their design. 

Our Actuation Systems integrate neatly into the pressure vessel design, providing additional functionality by allowing the user to apply a load, create a mechanical advantage or operate a valve or mechanism within the Vessel whilst at pressure and temperature.

Mechanical forces are generated using simple push-pull pneumatic and hydraulic actuators or via more complex electronic and fully programmable servo drives which are generally housed external of the Vessel or Endcap.   Displacement of the tooling within the Vessel is attained using a Pressure Balanced Stab Rod system(s) that penetrates the Vessel.  This is carefully designed to eradicate any unwanted forces generated by the hydrostatic pressure within the Vessel, and to ensure that the Actuation System is not overloaded due to the high pressure.

We offer a range of previously engineered Actuation Systems, or alternatively we can engineer a solution to meet customer’s specific requirements.

Actuation Systems


  • Simple Pneumatic/Hydraulic Actuators, Electric Linear Drives or Programmable Servo Drives
  • Manual, automated or remote operation
  • Standard or Pressure Balance Stab Rod System (single or twin rod entry)
  • Generated forces > 50,000 kN
  • Stroke length capability >1m
  • Bespoke application based tooling
  • Systems rated up to 1000 Bar and 300°C
  • Robust low friction bearing and seal arrangements


  • Providing Actuation with simple manual single step systems to more complexed programmable drive systems depending on customers’ requirements
  • Allows the creation of advanced functionality test platforms that exceed industry standards
  • Manipulate valves, connectors and other types of tooling in a pressurized environment
  • Simulate real life operational functionality whilst under pressure
  • Systems can be retro-fit to existing Pressure Vessels
  • Quick and simple to service and maintain

Applications and Customer Uses

Provided on Pressure Vessels for customers manufacturing equipment for the Subsea industry for conducting Wet-Mate Electrical Connector Testing (Mate/Demate actuation of electrical connectors), control and operation of Valves (CIMV) or testing of QCDC couplings.

We have also supplied our Actuation Systems for customers in Material Research testing laboratories that require solutions to carry out Mechanical (Tensile) Testing within a HPHT environment.

Project Examples

Project examples to follow

kw designed solutions

Tel: +44 (0) 1257 474 507

KW Designed Solutions Ltd, KW Group, Drumhead Road, Chorley North Business Park, Chorley, Lancashire PR6 7DE. United Kingdom.

Designed and manufactured in the UK Designed and manufactured in the UK.