ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTS
DechemaAchema 2018 Review
Sustainability, digitalization and flexible production approaches emerged as major themes…
CHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUS
CADWorx & Analysis SolutionsFocus on Software
Software enables interactive analytics on collected data This company recently…
NEW PRODUCTS + Show More

Comment PDF Environment, Health, Safety & Security

Emergency Shutdown Valves: A Functional Safety Approach to Selection

By Chemical Engineering |

The relationship between valve selection and safety certification still causes confusion. A focus on functional safety can help to elucidate Among the many varied viewpoints on the topic of emergency shutdown (ESD) valves, there are several aspects that continue to spark discussion and cause confusion due to a lack of complete clarity, including the relationship between valve selection and safety certification. In this article, we aim to clarify a few of the most misunderstood points associated with the selection of ESD valves. And in doing so, we hope to bring greater recognition to the concept of functional safety, which is associated with the safety integrity level (SIL) standards laid out by the International Electrotechnical Commission (IEC; Geneva, Switzerland; www.iec.ch): IEC 61508 (Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems) IEC 61511 (Functional safety – Safety instrumented systems for the process industry sector) Functional safety is a much broader set of concerns than the question of which valves to select. Certification has been a key issue of confusion recently: many people think “a SIL 3 certificate for valves is a must; likewise for a solenoid valve.” Still,…
Related Content
Focus on Valves
This butterfly valve has an inflatable seat for tight closure The Posi-flate butterfly valve (photo) has a highly polished Type…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Simplify sensor handling and maintenance with ISM
Three reasons to measure pH in-line
ABB Ability™ technology to transform BASF rotating equipment into intelligent machinery and improve uptime and reliability
Detect and correct anomalies early in your batch processes
ABB at ACHEMA 2018

View More

Live chat by BoldChat