Recent Blog Posts

Replacing Missing or Illegible Nameplates

April 28th, 2020

Occasionally, nameplates on ammonia refrigeration vessels become illegible or detached altogether. Does this mean the vessel must be replaced? Can a replacement nameplate be installed? If I have a photo of the old nameplate, is that sufficient? Do I need to contact a regulatory agency? These are just some of the questions that you may […]

Ammonia Pressure Vessel Nameplates

October 30th, 2017

Pressure vessels are used pervasively in the ammonia refrigeration industry for a variety of different functions. It is required that every vessel be constructed in accordance with ASME B&PV Code Section VIII, Division 1. The quickest way to verify that the design and construction requirements have been met is by inspecting the vessel nameplate. The […]

Vessel Nameplate Removal

December 8th, 2015

I recently received an email from a client asking if it is allowable to remove a pressure vessel nameplate and position it in another location on that same vessel. Here is the response that I gave: Dear John, Unfortunately, ASME National Board does not allow nameplates to be removed unless approved by an inspector and an updated […]

Q&A | Nameplates

May 19th, 2014

Question: What pieces of equipment in ammonia systems are required to have nameplates? Answer: The quick answer is that all equipment, valves, instruments, appurtenances, etc. should be equipped with nameplates as a best practice. Current codes and standards require nameplates on all major equipment. Here is a quick summary of relevant codes and standards on this topic: […]