Valavu ya mpira wa brass ndiyomwe ikulimbikitsidwa kuti igwiritsidwe ntchito poyika zida zamagetsi ndipo imatsimikiziridwa kuti igwiritsidwe ntchito ndi zinthu zachilengedwe, zopangidwa, zosakanikirana, zamafuta amafuta amafuta (LP), ndi mpweya wa LP.Ma valve a mpira wa gasi amapangidwa mwapadera kuti apereke magwiridwe antchito osayerekezeka.Kuchokera pa tsinde kupita ku thupi kupita ku kagwiridwe kokhazikika, chilichonse chapangidwa mwaluso kuti chizitha kugwira ntchito ndikuyika mosavuta.
Valavu yowongoka yowongoka yamoto imapangidwa ndi mkuwa wokhazikika, wokhazikika kuti ukhale wolimba komanso wokhalitsa.Thupi lopangidwa ndi mkuwa limachotsa kutayikira kwa pinhole komwe kumalumikizidwa ndi zinthu zotayidwa.Tsinde lowumbidwa lopangidwa kuchokera mkati ndi mphete za O kuti zitsimikizire magwiridwe antchito otetezeka.Mipando imatsimikizira chisindikizo cholimba komanso chosavuta kuyimitsa & kuyimitsa ngakhale mutakhala nthawi yayitali osagwira ntchito.Comfort-fit grip handle ili ndi kuphatikiza kwapadera kwa 'T' ndi mapangidwe a lever.Chogwiririrachi chimatha kukana kuyenda mwangozi chikagwedezeka kapena kugwedezeka Ndipo valavu ya mpira wamkuwa imapangitsa kuti munthu azitha kugwira ntchito kotala-kutembenuka (madigiri 90) otseguka kuti atseke.