Pankhani ya ntchito yosavuta yodula, ntchito yosindikiza ya valavu mumakina ndikuletsa sing'anga kuti isatuluke kapena kutsekereza zinthu zakunja kuti zisalowe mkati motsatira mgwirizano pakati pa magawo omwe ali pabowo pomwe valavu ili. . Kolala ndi zigawo zomwe zimagwira ntchito yosindikiza zimatchedwa zisindikizo kapena zomangamanga, zomwe zimatchedwa zisindikizo mwachidule. Malo omwe amalumikizana ndi zisindikizo ndikuchita ntchito yosindikiza amatchedwa malo osindikizira.

Kusindikiza pamwamba pa valavu ndiye gawo lalikulu la valavu, ndipo mawonekedwe ake otayikira amatha kugawidwa m'mitundu iyi, yomwe ndi, kutayikira kwa malo osindikizira, kutayikira kwa kulumikizana kwa mphete yosindikiza, kutayikira kwa gawo losindikiza likugwa. kuchotsedwa ndi kutayikira kwa zinthu zakunja zomwe zili pakati pa malo osindikizira. Chimodzi mwa ma valve omwe amagwiritsidwa ntchito kwambiri pamapaipi ndi zida ndikudula kutuluka kwa sing'anga. Chifukwa chake, kulimba kwake ndiye chinthu chachikulu chodziwira ngati kutulutsa kwamkati kumachitika. Malo osindikizira a valve nthawi zambiri amakhala ndi awiriawiri osindikiza, amodzi pamagulu a valve ndi ena pa diski ya valve.