Pali mavuto ambiri omwe amapezeka ndi ma valve, makamaka omwe amawoneka akuthamanga, kuthamanga, ndi kutuluka, zomwe nthawi zambiri zimawoneka m'mafakitale. Manja a valve a ma valve ambiri nthawi zambiri amapangidwa ndi mphira wopangira, womwe umakhala ndi vuto losakwanira bwino, zomwe zimapangitsa kuti pakhale kuwononga kwambiri kwa sing'anga yogwirira ntchito, kutentha kosayenera ndi kupanikizika, ndi zina zotero; kulongedza konseko kumayikidwa posungira, ndipo kukangana kwamkati kumakhala kwakukulu; kunyamula kumagwiritsidwa ntchito kwa nthawi yayitali. Kukalamba chodabwitsa; opareshoni ndi yaukali kwambiri; tsinde la valavu lapanga dzimbiri, kapena dzimbiri chifukwa chosowa chitetezo panja, ndi zina zotero, zomwe zimayambitsa mavuto a valve.
Mavavu amtundu wa ma valve osamva kuvala amapangidwa ndi mphira wosamva kuvala kwambiri, womwe ndi wosowa kuti utsike. Zimasakanizidwa ndi zowonjezera zochepa za nano-scale ndi latex yachilengedwe mumkhalidwe wonyowa (rabala wachilengedwe). Mkaka mosavuta kusakaniza mu madzi boma), ndi kusanganikirana ndi yunifolomu kwambiri, ndipo zili mphira zachilengedwe pafupifupi 97%, kotero kuti unyolo wautali wa mamolekyu mphira amakhalabe, ndi kuvala kukana ndi elasticity ndi 10 nthawi mphira ambiri, kotero Iye ali ndi mphamvu abrasive ntchito ndi oyenera zosiyanasiyana zikuwononga ntchito TV. Lili ndi elasticity kwambiri ndipo limatha kuchepetsa kukangana, kotero lingagwiritsidwe ntchito kwa nthawi yaitali. Mavuto a phula ndi dzimbiri la tsinde la valve amafuna chitetezo cha tsiku ndi tsiku ndi ogwiritsa ntchito.
Kuonjezera apo, ntchito yosindikiza ya valve yowonjezera si yabwino, ndipo sikungathe kupirira zotsatira za mauthenga othamanga kwambiri; mphete yosindikizira siyikugwirizana kwambiri ndi mpando wa valve ndi mbale ya valve; kutsekedwa kumathamanga kwambiri, ndipo malo osindikizira sakugwirizana bwino; zofalitsa zina, pang'onopang'ono pambuyo kutseka. Kuziziritsa kumapangitsa kuti pakhale zotchinga bwino pamwamba, zomwe zimapangitsa kukokoloka ndi mavuto ena. Rabara yosamva kuvala mu valavu yosamva kuvala imatenga ukadaulo wothamanga kwambiri wa vulcanization kutentha kwapakati panthawi ya vulcanization, kotero kuti mphira wokhala ndi pansi wandiweyani umatenthedwa ndikutenthedwa bwino mkati ndi kunja nthawi yomweyo, vulcanization imakhala yofananira, pamwamba ndi yosalala, ndipo mphamvu yolimba imakhala yolimba. Kukhazikika kwakukulu, kumatha kuyamwa, kuthamangitsa kukhudzidwa, kukangana ndi kusindikiza ntchito. Palibe vuto ndi ntchito yosindikiza, imakhala ndi malo osalala, ndipo sizimayambitsa kukhudzana kosindikizidwa bwino chifukwa cha kutseka mofulumira kwambiri.
Palinso zifukwa zina, kaya ndi valavu yamagetsi kapena valavu yowonongeka, wogwiritsa ntchitoyo ayenera kutenga njira zodzitetezera ndi kuzigwiritsa ntchito mwachizolowezi, monga: nyengo ikazizira, valavu sichitenga njira zodzitetezera, zomwe zimapangitsa kuti thupi la valve liwonongeke; kukhudza kapena kutalika Bwalo lamanja lawonongeka chifukwa cha ntchito yachiwawa ya lever; mphamvu yosagwirizana pamene mukukankhira kulongedza, kapena chithokomiro chosalongosoka chimapangitsa kuti gland yonyamula katundu ithyoke ndi zina zotero.
Nthawi yotumiza: Dec-22-2022