Drallim Smart Valve Monitoring fully analysed

Drallim Smart Valve Monitoring (SVM) has completed its FMEDA analysis by EXIDA; the resulting analysis shows SVM to have a Safe Failure Fraction (SFF) of 100%.

In the words of Paul Gruhn, an acknowledged expert in safety systems at L and M Engineering.

"There are a number of methods for partially stroking valves.

One of the simplest, which can be applied to a valve from any manufacturer, may in fact be the most effective.

By merely adding a pressure transmitter in the exhaust line of the actuator and capturing the signature profile of the valve during closure with a microcomputer, a surprising amount of information can be obtained.

Comparing later strokes of the valve against the original signature can reveal almost any problem.

It is not even necessary to measure actual valve movement, just as it is not necessary to open your chest in order to measure pulse or blood pressure." Here Paul is referring to the Drallim SVM system, the only system to test and diagnose every active component in the emergency valve control and operation train, including the actuator, actuator/valve coupling, solenoid valve, and quick exhaust valve.

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