The Simple Pressure Vessels (Safety) Regulations 1991
The Simple Pressure Vessels (Safety) Regulations 1991
(OP)
Are these regulations applicable to a pressure vessel which will see an internal vacuum of 500 mbar?
If not, what legislation is?
If not, what legislation is?





RE: The Simple Pressure Vessels (Safety) Regulations 1991
The mentioned regulations refer to pressure vessels used for compressed gas storage, in other words capable of storing latent energy.
I believe that your low vacuum operating condition would not qualify the vessel as a pressure vessel, say in accordance with ASME VIII U(1)(h) and is not covered by the 1991 regulations.
Cheers,
gr2vessels