ASME code, small vessels & Lethal service
ASME code, small vessels & Lethal service
(OP)
If you have small vessels that operate at atmospheric pressure or vacuum they are outside ASME code.
When are small pressure vessels >15 psig outside of ASME and what conditions dictate this?
Does lethal service have any effect on this? In ASME or out of ASME?
I know of a case where a vessel was designed to take a deflagration (10 times MWP for typical hydrocarbons). Does anyone know of other cases?
Thanks
When are small pressure vessels >15 psig outside of ASME and what conditions dictate this?
Does lethal service have any effect on this? In ASME or out of ASME?
I know of a case where a vessel was designed to take a deflagration (10 times MWP for typical hydrocarbons). Does anyone know of other cases?
Thanks
RE: ASME code, small vessels & Lethal service
RE: ASME code, small vessels & Lethal service
Because of the broad history and breadth of fabrication techniques that are out there for fiberglass vessels, ASME thought it would be prudent to develope a standard called RTP-1 - this is an "RTP" stamp. The RTP-1 standard covers full vacuum to 15 psig. In addition, RTP-1 has a "critical service" designation - not sure if this is what you mean by lethal service. Critical service has 12.5:1 safety factor vs. normal 10:1 safety factor on internal pressure design. There are more details to critical service as well.
Let me know if you would like more information. ghopkins@rl-industries.com
Hope this helps, Greg