Mai watsa matakin da za a iya jujjuya shi shine mai isar da iskar gas mai tsananin zafi, wanda ke haɗa firikwensin da da'irar sarrafa sigina a cikin akwatin junction. Wannan zane yana ba da damar firikwensin ya haɗu da iskar gas ɗin da aka nutsar a cikin harsashi, wanda daga nan ne ke jigilar iskar gas ɗin zuwa sashin ji ta hanyar bututun motsa jiki. Wannan sabon samfurin yana magance ƙalubalen da ke da alaƙa da auna matakan ruwa masu zafi ta hanyar guje wa hulɗa kai tsaye tsakanin firikwensin da matsakaicin da ake aunawa. Matakan nutsewa an ƙirƙira su musamman don biyan buƙatun auna matakan ruwa a cikin matsanancin zafin jiki ko kuma ruwa mai lalata sosai. Siffofin sa na musamman sun sa ya dace don aikace-aikacen da ke buƙatar ƙananan ma'auni da matsakaicin kewayon da mahalli tare da kafofin watsa labarai masu lalata sosai. Ɗaya daga cikin manyan fa'idodin ma'auni na nutsewa shine ikon auna matakan ruwa a cikin yanayin zafi mai girma. Dabarun auna matakin ruwa na al'ada galibi suna gwagwarmaya don tantance daidai matakin ruwa a matsanancin yanayin zafi saboda iyakancewar firikwensin. Koyaya, tare da matakan nutsewa, firikwensin ba a fallasa kai tsaye ga matsakaicin da ake aunawa. Maimakon haka, yana hulɗa da iskar gas ɗin da ke cikin silinda mai nutsewa, wanda ke aiki azaman shinge mai kariya. Wannan hanyar tana tabbatar da ingantaccen ma'aunin matakin abin dogaro ko da a ƙarƙashin matsanancin yanayin zafin jiki.