FULL STROKE TESTING (FST)

FST solution by Val Controls

What is Full Stroke Testing (FST)?

During a Full Stroke Testing (FST) the valve is completely opened or closed during the test. The FST is conducted during planned shutdowns before installation or the valve system or at Factory Acceptance tests (FAT). In these scenarios it is often a requirement to do a full stroke test as a proof test of the valve system.

Full Stroke Testing validates the entire stroke of the valve and is necessary to do to test if the valve will close fully in case of an emergency shutdown.

Val Controls provides Intelligent Diagnostic Controllers (IDC24) which can perform Full Stroke Testing and Partial Stroke Testing on all types of valve systems.

 

BENEFITS OF FST

The main benefit of Val Controls Full Stoke Testing solution is that it enables the user to collect reliable data of the closing and opening signature of the valve:

• Detects rough or abnormal opening and closing patterns

• To be used for Factory acceptance test (FAT) reports, planned shutdowns and ESD

• Compare data from FAT and comissioning with present-day shut down data

• Predictive maintenance - replace the right parts at the right time

Val Controls FST solution

Val Controls FST solution can be used for pneumatic and hydraulic systems and is performed by the IDC24 controller. The IDC24 controller can be used in any environment as well as existing or new installations. Typically, the IDC24 can be added to the system without any need for new cables, extra software etc. making it very easy to install. The Full Stroke Test can be started locally or remote and be customized for the end-user's specifics needs.

The SOV-based solution for FST, which Val Controls provides can test the complete valve system - including the SOV. Furthermore, it can collect valuable diagnostics information to be used for troubleshooting. The solution is more reliable than the traditional positioner-based solution because it bypasses the supply pressure.

The software provided by Val Controls, allows the end-user to compare data from FAT and comissioning to present-day data which enables the user to predict when certain parts need replacement or maintenance.

Image: Val Controls SOV based layout for FST

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