Famfo na cryogenic don tsarin cikawa wani nau'in kayan aiki ne wanda aka tsara musamman don cika ruwa mai ƙarancin zafin jiki, wanda ya ƙunshi jikin famfo, injin, tsarin sarrafawa da tsarin sanyaya.
LPG vane famfo yana taka muhimmiyar rawa a harkokin sufuri da sarrafa iskar gas mai ɗorewa saboda ingancinsa, kwanciyar hankali da sassauci, kuma kayan aiki ne da babu makawa a masana'antu da yawa.
Ka'idar aiki na famfon vane na LPG galibi ya dogara da ƙarfin centrifugal da canjin girma.