Pressure vessels

thumb|upright=1.35|Russian Akula-class submarine|Akula-class submarine of the [[Northern Fleet, in 2008]] thumb|upright=1.35|

thumb|List of Soyuz missions|More than 140 Soviet and Russian crewed Soyuz spacecraft (TMA version shown) have flown since 1967 and now support the [[International Space Station.]]

device to initiate and control a sustained nuclear chain reaction

pressure vessel for human occupation

container designed to hold gases or liquids at a pressure substantially different from the ambient pressure

cylindrical container for storing pressurised gases

gas cylinder used to store and transport high pressure breathing gas for diving

equipment to maintain internal air pressure in aircraft or spacecraft

pressure vessel containing the nuclear reactor coolant, core shroud, and the reactor core

safety valve used to control or limit the pressure in a system

storage vessel for oxygen

human habitable underwater enclosure filled with breathable gas

Thermally triggered safety valve

Infrastructure of transporting hydrogen

directive of the European Union

non-destructive test of pressure vessels

device to prevent coolant in nuclear reactor from boiling

ASME technical standard

physics branch

measures of a submarine's ability to operate underwater, used as design parameters

alt=MYRRHA Reactor vessel and its internals|thumb|upright=2|MYRRHA Reactor vessel, cutaway view The MYRRHA (Multi-purpose hYbrid Research Reactor for High-tech Applications) is a design project of a nuclear reactor coupled to a proton accelerator. This makes it an accelerator-driven system (ADS). MYRRHA will be a lead-bismuth cooled fast reactor with two possible configurations: sub-critical or critical.