Undocumented Equipment
Pressure Vessel, Risk Management, Mechanical Engineering, Heat Exchanger randy bogard Pressure Vessel, Risk Management, Mechanical Engineering, Heat Exchanger randy bogard

Undocumented Equipment

Missing your name plate? Even worse, are you missing your design calculations? 

No documentation? No problem! 

I’m often asked questions about undocumented equipment when I’m on site for turnarounds. Owner/Operators would like to return undocumented equipment back to service but they do not have an engineering department with enough time to handle the complexities involved. Material identification, measuring dimensions and thicknesses, performing internal and external inspections, and providing detailed calculations adds way too much workload to think about handling undocumented equipment internally. 

So it sits…and sits...

Sure, not all undocumented equipment is suitable to return to service, but wouldn’t you like to find out?
Metalmark Engineering helps you stay on top of OSHA’s Process Safety Management (PSM) program by providing missing design calculations, inspection reports, and detailed design drawings for your equipment without documentation.

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Derating for Process Safety Reasons
Mechanical Engineering, Pressure Vessel, Heat Exchanger, Risk Management, COMPRESS randy bogard Mechanical Engineering, Pressure Vessel, Heat Exchanger, Risk Management, COMPRESS randy bogard

Derating for Process Safety Reasons

Why would anyone de-rate a pressure vessel or heat exchanger? What is the point of formally accepting less out of your equipment than it was designed for?

The simple answer is to reduce the operational risk at your facility by ensuring that pressurizing to the original Maximum Allowable Working Pressure (MAWP) is never attempted. The most common scenario I observe is when a design with no corrosion allowance does not align with measured in-service corrosion.

Many times pressure vessels and heat exchangers operate much lower than their ratings so de-rating causes no operational disruptions. Is there any equipment in your facility that could use a de-rate?

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