Chinthu chachikulu ndi chitsulo chosapanga dzimbiri, chomwe chimakhala ndi kukana kwa dzimbiri kuposa valavu ya mpira.
Ma valve onse opangidwa ndi mpira, palibe kutayikira kwakunja ndi zochitika zina.
Makina opangira mpira ali ndi chowunikira chapamwamba chapakompyuta kuti chiwunikire ndikuzindikira, kotero kulondola kwa makina a mpira ndikwambiri.
Monga momwe thupi la valavu likukhalira mofanana ndi zida za chitoliro, sipadzakhalanso kupanikizika kosagwirizana komanso kusinthika chifukwa cha chivomezi ndi galimoto yomwe ikudutsa pansi.Chitolirocho sichimva kukalamba.
Direct m'manda kuwotcherera valavu mpira akhoza kukwiriridwa mwachindunji pansi popanda kufunika kumanga lalikulu valavu bwino.Ndi zitsime zazing'ono zokha zomwe zimayikidwa pansi kuti zisunge ndalama zomanga ndi nthawi yomanga kwambiri.
Sinthani kutalika kwa thupi la vavu ndi kutalika kwa tsinde malinga ndi kapangidwe ka mapaipi ndi kapangidwe kake.
Kulondola kwa makina a mpira ndi kolondola kwambiri, kosavuta kugwiritsa ntchito komanso kopanda kusokoneza.
Thupi la valve ndi laling'ono komanso lokongola poyerekeza ndi mtundu womwewo wa mankhwala.
Moyo wautumiki ndi zaka zoposa 15 mu ntchito yachibadwa ndi kugwiritsa ntchito valve.