The arrangement below is very common in processes/systems. This simple yet common arrangement causes havoc in hazard analyses. As the title states, is this arrangement managed with a Temporary SOP, a Car-Seal, or Both? The issue is that the motorized valve is tied to a Hi-Hi level alarm and interlock. When the vessel archives its […]
It has grown tiresome, but it remains a teachable moment, to debate “engineers” who want part of ASME/NBIC to be the gospel and other parts not so much. The ammonia refrigeration industry just can’t seem to grasp the critical need in their “Common PRV Header Design” v.s. having more “holes in the roof” (as they
I have upload my REVISED Car Seal Program and the PowerPoint that goes with it to the Document Library – Chemical Process Safety folder.
I just uploaded my newest version of the SAFTENG Car Seal Program that reflects the code requirements in 2025. A client has learned they need to car seal some valves that are “intervening valves” after a PRD and before a header. The OEM commissioning the process stated they had a Car Seal Program and would
