Kugenzura valve yateguwe kandi ikorwa rwose ukurikije ibisabwa na API 6A 《Ibikoresho byihariye bya Wellhead nigiti cya Noheri》, bishobora gukoreshwa mu buryo busimburana hamwe n’ibikoresho bifatika mu gihugu no hanze yacyo bihuye na API 6A.Intangiriro ifata ibyuma birwanya sulfide kandi irashobora gukoreshwa muburyo bwa H2S, umubiri wa valve wakozwe nibyuma bivangwa nibyuma bikora neza.Ubwoko bubiri bwa Check valve butangwa na landrill: Ubwoko bwa Swing na Lift ubwoko.