Valve testing eases preventative maintenance

By analysing performance data over a number of tests the user can also predict any degradation in performance and schedule maintenance accordingly.

Rotork has released has purchased the Drallim SVM (smart valve monitoring) partial stroke valve testing product from Drallim Industries.

The SVM system is used throughout the world to assist in the testing of hydraulically and pneumatically actuated block valves on duties including ESD (emergency shutdown), BDV (blow down), HIPPS (high integrity pressure protection) and SSIV (sub sea isolation).

The SVM technology performs real-time partial stroke testing of critical valve installations, enabling the user to assess not only whether the valve will close as required, but also the performance of all the final elements in the valve loop.

By analysing this performance data over a number of tests the user can also predict any degradation in performance and schedule maintenance accordingly.

In this way costly unplanned or extended shutdowns can be avoided and the possibility of failures on demand minimised.

The technology, which Rotork has sold through its Fluid Systems Division for a number of years, has proved to be of great benefit to the partial closure testing of valves in locations from Sakhalin Island to Saudi Arabia.

As part of the agreement, SVM technology specialist Richard Harvey has transferred from Drallim to become Rotork's Business Development Manager for the SVM product.

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