Ama-valve ebhola e-Trunnion ane-obturator eboshwe yi-trunnion evimbela ukugudluka kwe-axial yebhola ngokwalo lapho kugeleza khona;ingcindezi yomugqa icindezela isihlalo phezu kwebhola, ukuthintana phakathi kwezindawo kukhiqiza i-valve yokuvala;ukwakhiwa okujwayelekile kwe-trunnion kuqinisekisa ukukhululeka komgodi othomathikhi uma kwenzeka kuba nokucindezela ngokweqile emgodini womzimba;lawa ma-valve angakhethwa ezinhlobonhlobo zezinhlelo zokusebenza ezingenayo imingcele ethile kuwo wonke amasayizi nezingcindezi.