Ivalvu yokuhlola iklanywe futhi yakhiqizwa ngokuphelele ngokuvumelana nezidingo ze-API 6A 《Izincazelo Zemishini Ye-Wellhead kanye Nesihlahla sikaKhisimusi》, ekwazi ukusetshenziswa ngokushintshana nezinto ezihambisanayo ekhaya naphesheya ezihambisana ne-API 6A Standard. I-core ithatha insimbi engamelana ne-sulfide futhi ikwazi ukusetshenziswa esimweni se-H2S, umzimba we-valve owenziwe ngensimbi ye-alloy esebenza kahle. Izinhlobo ezimbili zama-valve okuhlola ahlinzekwa yi-landrill: Uhlobo lwe-Swing kanye nohlobo lwe-Lift.