Inyenyeri yo gusohora inyenyeri nibintu byingenzi mu nganda aho isuku n'isuku ari byingenzi. Cyane cyane mubiryo, ibinyobwa, n'imiti, iyi valve yagenewe korohereza gusohora neza kandi neza ibikoresho mugihe birinda kwanduza. Igishushanyo cyabo cyihariye ntabwo gifasha gusa mugukoresha ibikoresho bya viscous hamwe nibice byuzuye ibice ahubwo na