Nkumukoresha ukurikirana winganda yinganda, Cokaren yishimiye kwerekana ibicuruzwa bishya - guhagarika indangagaciro. Iyi valve nziza yagenewe gutanga imikorere isumba izindi no kwizerwa, kandi ibintu byihariye bituma bituma bituma bigira intego yo gusaba.