device used to determine the dryness fraction of a wet vapour by measuring its temperature and pressure after throttling by an orifice in an insulated chamber, mõõtevahend, mida kasutatakse märja auru kuivuse murdosa kindlaksmääramiseks, mõõtes selle temperatuuri ja rõhku pärast aurukambri düüsi sulgemist, vessel used initially to separate some of the moisture from the steam, to ensure superheat conditions after throttling