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Partial Stroke testing - Paul Turner, Imtex Controls (in English)

Partial Stroke testing - Paul Turner, Imtex Controls (in English)

The benefits of online testing of shutdown and blow-down valves and the operational challenges for effective implementation


Shut down valves perform a vital safety role on many process plants, both onshore and offshore. They are designed and positioned such that they act as the ‘Final Element’ in any Safety Instrumented System.

In recent years and following on from incident analyse work done in this area, regulatory authorities such as the Health and Safety Executives, have taken a much greater interest in how plant operators are ensuring their shut down valves are in good health and thus complying with their legislative requirements. This has put pressure on plant operators to invest in various monitoring and diagnostic techniques (such as Partial Stroke Testing) that enable insight into the health of a shut down valve to be obtained.

The implementation of the typical monitoring and diagnostic techniques present a number of issues for operators. Experienced problems include:

  • Issues with the selected solutions (for example spurious trip events) which have made them reluctant to run the systems installed.
  • Operators of existing plant often do not have the necessary infrastructure to support the instrumentation available. This can mean considerable expenditure on new cabling, I/O and potentially control system upgrades which, when the financial implications of the necessary changes are analysed, make it extremely difficult to justify within the operational budget for the plant.
  • Most operators do not have the staff available with the necessary training or time to analyse the data collected from the field and meaningfully interpret it.

The presentation explores practical solutions that can be employed by operators to mitigate some of the problems detailed above. The presentation will introduce some new solutions available on the market that not only help operators meet their regulatory requirements without significant expenditure or putting additional risk on production operations.

 Key Words/Phrases:

› Valve testing & standards

› Partial Stroke Testing

› Spurious Trips, Safety

› Performance & validation

› Automation & actuation

› Supply medium (El, Pneumatikk, Hydraulikk)

› Fail action

› Safety factor

› Torque verdier vs. MAST

› Sizing & Selection

› Instrumentering og Closed Loop systemer


Paul Turner is the Engineering Manager at Imtex Controls where he has worked for 25 years. Whilst at Imtex Controls, Paul has  been responsible for over 15 product developments and launches including the introduction of several new technologies to the Valve Industry. Currently, Paul is focused on the development and introduction of valve related systems targeted at increasing Plant Safety in tandem with Operational Efficiency enabling operators to maximize their Production returns whilst reducing their exposure to risk.


Tidspunkt fra 12.06 / ons 10:00
Tidspunkt til 12.06 / ons 11:30
Sted Hotel Scandic Hammerfest
Kategorier Dag 1 (12.06.2019)

Kart som viser sted

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