Tribology Testing

Subsea Fluid Services offer a suite of tribology test equipment to determine the lubrication characteristics of hydraulic fluids. Our experienced staff use state of the art equipment including a Stanhope Seta Shell 4 Ball testing rig and Falex Pin and Vee Test Machines.

We also offer customers access to a wide range of additional lubrication testing technology and excel in designing bespoke test rigs to replicate field conditions and specific equipment testing requirements.

Please refer to the tables below for more information on our testing capabilities and the typical testing we offer and do not hesitate to contact us to contact us to discuss your requirements.

’if a fluid touches it, we can test it!’
Range of equipment to conduct tribology testing on hydraulic fluids including falex, 4-ball and bespoke rig design.
Testing Capabilities
Typical Testing
  • Evaluation of lubricant endurance, friction and wear profile
  • Determination of weld load and load carrying capability
  • Calculation of endurance and wear profile vs applied load
  • Performance evaluation as a function of ageing temperature
  • Calculation of torque vs wear function at high pressure
  • Access to a wide range of additional lubrication technology
  • Design of bespoke test rigs to replicate field conditions
  • 4 Ball wear scar & weld load to various specifications including:
  • ASTM D2783, D2596, ASTM D4172 ((20 °C only) and
  • DIN 51350 Parts 1-5, ISO/CD 11008 & IP239
  • Falex Pin and Vee Block testing to various standards including:
  • ASTM D2625, D2670, D3233, D5620 & IP 241
  • Performance before/after ageing to ISO 13626-6
  • Rig design to replicate field or equipment specific conditions
Subsea Fluid Services Serving the Offshore Oil & Gas Industry worldwide
Component Testing


Specialist engineers have designed
and built test rigs for :
Directional control valves (DCV)
Down hole safety valves (DHSV)
Laboratory services


Team of scientists and state of the
art laboratory facilities for :
Fluid analysis
Material compatibility
Mechanical testing
Spectroscopy (FTIR & ICP)
Microscopy (SEM)
Consultancy services


Wide range of bespoke consultancy
Services Including :
IT software development
On-site surveys
Environmental audits & updates

Subsea Fluid Services Limited

, E18, Croft Court, Leigh, Lancashire, WN7 3PT, UK,  |  |  +44 (0)1942 608 831