Chemical Processing-August 2008

ing safety system should demonstrate that the design and management practices meet or exceed the intent of current good engineering practices and process requirements. Don’t hide outdated or under-performing equipment under the cloak of grandfathering. Address identified gaps by developing action plans for closing them, establishing compensating measures until the gaps are closed, and creating an implementa- sonnel so they understand and commit to the plans. The most important things are unknown and unknowable [4]. So, management must continually work on the system, measure what can be meaningfully measured and move forward with improvement activities. Continuous improvement counteracts the accumulation of latent conditions that present potential safety challenges and weaken protection layers. Improving long-term Related aRticles on chemicalPRocessing.com: • Achieve Continuous Safety Improvement, www.ChemicalProcessing.com/articles/2007/063.html • Meet SIS “User Approval” Mandates, www.ChemicalProcessing.com/articles/2006/068.html • Can you Safely Grandfather your SIS?, www.ChemicalProcessing.com/articles/2005/521.html • Consider HIPS for Reactive Processes, www.ChemicalProcessing.com/articles/2004/330.html tion schedule. Periodically assess plans to see if there’s a need to accelerate the schedule or broaden the plan objectives. For example, a planned ISS upgrade may be accelerated when the manufacturer withdraws support for the installed equipment. To be successful, action plans should be communicated to affected per- operational effectiveness often takes time. Operating plans should consider how residual risk will be managed during the transition. Review and update as necessary the ISS operating and mechanical integrity basis to ensure equipment, procedures and personnel training remain in sync with modifications. Check Valves Built to Your Check List. www.checkall.com West Des Moines, Iowa USA Phone: 515-224-2301 sales@checkall.com � Light weight: the pipe is used as the valve body. � Tight seals: choice of common and exotic elastomeric seats for special conditions. � Supply-side spring: the valve � Variety of spring settings: from 1/8 psi to 100 psi settings. trim is upstream of the mixture. � Simplicity: only four to six components (depending on style). Since 1958 http://ChemicalProcessing.com http://www.ChemicalProcessing.com/articles/2007/063.html http://www.ChemicalProcessing.com/articles/2006/068.html http://www.ChemicalProcessing.com/articles/2005/521.html http://www.ChemicalProcessing.com/articles/2004/330.html http://www.checkall.com http://www.checkall.com

Table of Contents Feed for the Digital Edition of Chemical Processing-August 2008

Chemical Processing- August 2008 Contents From the Editor ChemicalProcessing.com Field Notes In Process Energy Saver Compliance Advisor Protect your Plant What’s on Tap for Water? Keep Operations Safe Polystyrene Plant Gains Extra Output and More Process Puzzler Plant InSites Equipment & Services Adlits Product Spotlight/Classifieds Ad Index End Point

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