Li-valve tsa tiiso ea khatello li etselitsoe mocheso o phahameng le lits'ebeletso tsa khatello e phahameng haholo setsing sa motlakase.Ha ho bapisoa le li-valve tsa bonnet tse nang le bolted, li-valve tsa tiiso ea khatello ea BVMC ha li thata haholo ebile li ka fana ka ts'ebeletso e ntle ea ho tiisa ka tlhokomelo e fokolang.