气瓶是一种压力容器,用于储存和容纳高于大气压的气体。在气瓶内,這些物體可以是压缩气体、液态蒸汽、以及超臨界流體。这取决于物體的物理特性。常見的气瓶大多為细长形,阀门位於氣瓶顶部,用于连接氣體接收装置。 See Compositeoverwrappedpressurevessel for details
helium pressure vessels which are immersed in the liquid oxygen. The vessels are overwrapped with a carbon composite material(英语:Compositeoverwrapped pressure