DEVELOPMENT OF A CONTROLLER AND PERFORMANCE TESTING FOR PARTIAL STROKE TESTING (PST) OP FISHER ESD VALVES

This report essentially discusses the work on the Development of a Controller and
Performance Testing for Partial Stroke Testing of FISHER ESD Valves which deals
with Y okogawa F A-M3 Controller and the FISHER Emergency Shutdown valves. The
objectives of the project are on developing a controller to the Partial Stroke Testing
(PST) using Programmable Logic Controller (PLC) and software tools; and conduct
performance testing on the ESD valves. This report also explains the valve components
and the fundamentals of PLC. The methodology explains in detail about developing the
routine for PST and also the construction of ladder logic diagram using WideField2
software. The setting of AMS V alveLink software is also explained in this chapter. The
data gathered from the 35 days of testing are presented in Chapter 4. Besides, the Valve
Signature, PST Analyzed Data, and Digital Valve Controller (DVC) installation are also
explained in details. Chapter 5 concludes what has been achieved in this project and the
recommendation for future works. Throughout the project, sharing of ideas with
PETRONAS engineers from the Improvement Working Group (IWG) of Skill Group 14
(SKG14) are also conducted to compare the performance of various valves for use in
PETRONAS plants. The outcome of this project would be very useful for the
PETRONAS to adopt on the PST strategy in their plant nationwide.