DIN Standard StormValve

Vavu yamkuntho ndi valavu yosabwerera m'mbuyo yamtundu wa fap yomwe imagwiritsidwa ntchito kutulutsa zimbudzi m'madzi, imalumikizidwa ku sol pipe kumapeto kwina ndipo kumapeto kwina kuli m'mbali mwa sitima kuti zimbudzi zituluke m'madzi. Chifukwa chake imatha kukonzedwanso pokhapokha ngati pali malo owuma.
Mkati mwa valavu muli chogwirira chomwe chimalumikizidwa ndi cholemera chopondera, ndi chipika chotsekera. Chotchinga chotsekera ndi chidutswa cha valavu chomwe chimayang'aniridwa ndikuyendetsedwa ndi gudumu lakunja lamanja kapena choyendetsera. Cholinga cha chipika chotsekera ndikusunga chipikacho pamalo pake chomwe chimaletsa kuyenda kwa madzi.
Akangoyamba, wogwiritsa ntchitoyo ayenera kusankha ngati atsegula chipika chotseka, kapena kuchisunga chotseka. Ngati chipika chotseka chatsekedwa, chidzakhalabe kunja kwa valavu, ngati chipika chotseka chatsegulidwa ndi wogwiritsa ntchitoyo, chizingoyenda momasuka kudzera mu chivundikirocho. Kupanikizika kwa chivundikirocho kudzatulutsa chivundikirocho, ndikuchilola kuti chiziyenda kudzera mu chotulutsira mpweya mbali imodzi. Pamene madzi asiya kuyenda, chivundikirocho chidzabwerera chokha pamalo ake otsekedwa.
Kaya chipika chotseka chilipo kapena ayi, ngati chipikacho chikubwera kudzera mu chotulutsira madzi, chipika chakumbuyo sichidzatha kulowa mu valavu chifukwa cha kulemera kwake. Mbali iyi ndi yofanana ndi ya valavu yowunikira komwe kuyenda kwa kumbuyo kumalepheretsedwa kuti isadetse dongosolo. Chogwirira chikatsitsidwa, chipika chotsekacho chidzatsekanso chipikacho pamalo ake otsekedwa. Chipilacho chotetezedwa chimachotsa chitolirocho kuti chikonzedwe ngati pakufunika kutero.