NORTECHis imodzi mwa mayiko otsogola ku ChinaValavu ya Globe Wopanga & Wogulitsa.

Kodi ubwino ndi kuipa kwavalavu yapadziko lonse?
Mbali zotsegulira ndi zotsekera za valavu yotseka ndi zazikulu ngati pulagi, ndipo pamwamba pake potsekerapo ndi pathyathyathya kapena pakona, ndipo zimayenda molunjika pakati pa madzi. Kapangidwe ka ndodo kamakhala ndi mtundu wa ndodo yokweza (tsinde la valavu limakwezedwa ndikutsitsidwa, gudumu lamanja silikwera), ndipo pali mtundu wa ndodo yokweza yozungulira (gudumu lamanja ndi tsinde la valavu zimazungulira ndikukwera pamodzi, ndipo nati imayikidwa pa thupi la valavu). Vavu yoyimitsa ndi yoyenera kokha kuti itsegulidwe mokwanira komanso kutsekedwa kwathunthu, kusintha ndi kugwedeza sikuloledwa.
Valavu yoyimitsa ndi valavu yokakamiza kutseka, kotero valavu ikatsekedwa, kupanikizika kuyenera kugwiritsidwa ntchito pa flap kuti kukakamiza pamwamba pa kutseka kusatuluke. Pamene cholumikiziracho chikulowa mu valavu sikisi kuchokera pansi pa diski ya valavu, kukana komwe mphamvu yogwirira ntchito ikufunika kuthana nako ndi mphamvu yokangana ya tsinde la valavu ndi kulongedza ndi kuponderezedwa komwe kumapangidwa ndi mphamvu yolumikizira. Mphamvu yotseka valavu ndi yayikulu kuposa mphamvu yotsegulira valavu, kotero valavu. M'mimba mwake mwa ndodo iyenera kukhala yayikulu, apo ayi chitoliro chojambulira tsinde la valavu chidzalephera. M'zaka zaposachedwa, kuyambira pomwe mavavu odzitsekera okha adatulukira, njira yoyendetsera kayendedwe ka valavu yotseka yasintha kuchokera pamwamba pa valavu kupita ku valavu. Pakadali pano, pansi pa mphamvu yapakati, mphamvu yotseka valavu ndi yaying'ono, pomwe mphamvu yotsegulira valavu ndi yayikulu. M'mimba mwake mutha kuchepetsedwa moyenerera. Nthawi yomweyo, pansi pa mphamvu ya cholumikiziracho, mtundu uwu wa valavu nawonso ndi wolimba. "Sanhua" ya dziko langa idanenapo kuti njira yoyendetsera kayendedwe ka valavu yoyimitsa iyenera kukhala kuyambira pamwamba mpaka pansi.
Pamene valavu yotseka yatsegulidwa, pamene kutalika kwa diski kuli 25%-30% ya m'mimba mwake, madzi amayenda bwino kwambiri, zomwe zikusonyeza kuti valavu yafika pamalo otseguka kwathunthu. Chifukwa chake, malo otseguka kwathunthu a valavu yotseka ayenera kutsimikiziridwa ndi kukwapula kwa valavu yotseka.
Vavu yoyimitsa ingagawidwe m'magulu awa: valavu yoyimitsa, valavu yoyimitsa ya ulusi wa pamwamba, valavu yoyimitsa ya ulusi wapansi, valavu yoyimitsa yolunjika, valavu yoyimitsa ya ngodya, valavu yoyimitsa ya njira zitatu, valavu yoyimitsa yamagetsi yolunjika, valavu yoyimitsa ya plunger, valavu yoyimitsa ya singano yooneka ngati singano.
Ubwino: kapangidwe kosavuta, kupanga ndi kukonza kosavuta.
Kugwira ntchito ndi kochepa, ndipo nthawi yotsegulira ndi kutseka ndi yochepa.
Kugwira bwino ntchito yotseka, kukangana pang'ono pakati pa malo otsekera, komanso kukhala ndi moyo wautali.
Zoyipa:
Kukana kwa madzi ndi kwakukulu, ndipo mphamvu yofunikira potsegula ndi kutseka ndi yayikulu.
Sikoyenera kugwiritsa ntchito zinthu zokhala ndi tinthu tating'onoting'ono, kukhuthala kwambiri komanso kupangika mosavuta.
Kusagwira bwino ntchito kosintha
Zosamala poika ndi kukonza: Valavu yoyimitsa yomwe imayendetsedwa ndi gudumu lamanja ndi chogwirira ikhoza kuyikidwa pamalo aliwonse a payipi.
Mawilo amanja, zogwirira ndi njira zoyendetsera siziloledwa kugwiritsidwa ntchito ponyamula. Njira yoyendetsera kayendedwe ka chinthucho iyenera kugwirizana ndi njira ya muvi womwe wawonetsedwa pa thupi la valavu.