Ithumbu eliVacuum eligqunywe ngeJacket, elibizwa ngokuba liThumba leJacket yeVacuum, lisetyenziselwa ukuhanjiswa kweoksijini elulwelo, initrogen elulwelo, i-argon yolwelo, i-hydrogen elulwelo, ihelium yolwelo, i-LEG kunye ne-LNG, njengendawo eGqibeleleyo yokugquma kwemibhobho eqhelekileyo.