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.