modelling, or runaway chemical reactions. Any steps necessary to remedy these additional issues should be performed during this step. Step 7: Use calculations to determine adequate relief device specifications Pressure relieving devices include mechanisms such as Pressure Safety Valves (PSV) and Pressure Relief Valves (PRV). However, there are other types of pressure-relieving devices as well, such as Rupture Disk Devices and Pin-Actuated Devices. If designed, installed and maintained correctly, these different devices will have the correct capacity for allowing anticipated pressurised fluids or gases to enter and escape so that pressure cannot build up beyond safe operating limits. Upon completion of calculations, an engineer will be able to specify and procure the correct PRV (i.e., type, code, basis, service, body, trim, manufacturer, serial no, etc.) for the requirements. Inspection and testing This final phase of ensuring optimal pressure relief system efficiency involves the design and execution of an appropriate inspection and testing programme while the device remains in the field (in service or out of service). Step 8: Develop an ITP for each device An inspection testing plan (ITP) helps to maintain the safety, efficiency, and effectiveness of each device. Once set, this information can be entered into the inspection database management system (IDMS) or whatever database the organisation uses. Step 9: Perform inspection and testing Once an ITP has been developed for each device and entered into the data management system, inspection and testing can take place following the guidelines set forth in API RP 576. Step 10: Evergreening A good evergreening programme will have a complimentary workflow that helps staff to identify, align, develop and execute change in a structured approach which helps a facility to protect its original investment, reduce verification burdens and not repeat expensive revalidations every 5 to 10 years. After PRVs have been analysed, implemented and maintained in the field in “as built” status, facilities should consider implementing an evergreening workflow and strategy. Changes that are not managed through a rigorous Management of Change (MoC) programme may result in the need to review overpressure scenarios for potential impacts. Additionally, the global flare/vent/scrubber capacity may have changed resulting in inadequate pressure relief capacity. In these cases, revalidation of PRSs or specific PRDs may be required when process safety information (PSI) is missing/inadequate or when process or organisational changes occur that impact PRS or PRD requirements. Conclusion Managing PRVs is complex, challenging and often misunderstood. Implementing these 10 steps will help you to optimise your PSV programme and help it operate on solid ground. For further information please visit: https://www.abs-group.com INDUSTRY RECOGNISED COURSES FROM THE BFPA NOT KNOWING IS NOT AN OPTION The BFPA have for many years been passionate about raising standards within the fluid power market and industry as a whole, with this objective in mind we have created a suite of valuable training courses now available. HOSE ASSEMBLY SKILLS COURSE The skills course will take the candidate through the many techniques and considerations essential for the safe production of a quality hose assembly and ultimately leading to installation. This two day course involves both the theoretical and practical elements in working with hose and connectors. 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HOSE INTEGRITY, INSPECTION & MANAGEMENT The key themes covered during the one-day course include: hose life expectancy; risk analysis; competence by way of a robust competence assurance system; identify, inspect & record; hose register – recording of a hose assembly prior to it going into service; and visual hose assembly (installation) inspection check list. HYDROSTATIC PROOF PRESSURE TESTING The course will help give the delegate a greater understanding of the dangers associated with pressure testing. During the one day course the delegate will learn how to safely test hose and connector assemblies by taking into account a safe system of work best practice procedure (HSE GS4 document) along with relevant pressure test standards commonly used within industry. $PVSTFT DBO CF EFMJWFSFE GBDF UP GBDF PS POMJOF Gor more information or to check availability please visit: www.bfpa.co.uk/training Please call 01608 647900 or email enquiries@bfpa.co.uk
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