pressure chamber design standard

[bgoksan]

I am not sure if this subject is under the right forum, however I couldn't find anything from medical equipment section.
What is the standard that must be used to apply hydrostatic test to a pressure chamber used in medical applications? Is it proper to consider chamber as a pressure vessel or are there any specific standards for design and testing the chambers?

 

[unclesyd]

Need a little more information like;

Is this for human occupancy?

If not is there any other physical conditions to be met.

I would say the least requirement would be ASME VIII.

 

[bgoksan]

yes,it is for human occupancy. Other than, there is no further information about pressure chamber.

 

[unclesyd]

These are the minimum codes and standards that one particular chambers complies to.


All the ASME codes on this page.

http://www.normas.com/ASME/pages/PVHO.html

comply to FDA 510


comply with NFPA 99


You need to get all the details about the use of said chamber as some or most no use a high O2 gas. As the O2 content goes up so do the design problems.

This is from my diving buddy that works around Hyperbaric Chambers, he just happened to be there. He stated and I concur it will be lot cheaper and less trouble to purchase one from a chamber manufacturer.

 

[JStephen]

What are the circumstances here? Are you designing a new chamber? Buying one? Testing an existing chamber?

 

[bgoksan]

Testing an existing chamber (hydrostatic test will be applied)is requested. Therefore my real aim is to find out how to do that. On the other hand, I want to learn design codes also for having widespread way of thinking.

 

[JStephen]

You might want to confirm that the existing structure or foundation is adequate for water weight. I assume it was hydrotested when built, but that could have been in a shop somewhere.

Also, be aware that more recent editions of the ASME code have adjusted allowable stresses and all, and I believe a change in hydrotest pressure went with that.

 

[unclesyd]

If you go to the Normas link post above there are the ASME codes, especially the PVHO, the vessel has to meet. Testing of an in service vessel is going to be tricky as most have electrical connections that don't like water.

If there is any problem with the chamber your best bet would be to get with manufacturer.