Kugonjetsa kukana kwa kasupe kumapangitsa kuti valavu itsegule kapena kutseka. Pamene kupanikizika kwapakati kumapeto kwa cholowera kuli kotsika kuposa kumapeto kwa cholowera, valavu yowunikira yoyima: chifukwa cha kupsinjika kwa cholowera kumapeto kwa payipi. Kasupeyo amakankhira pakati pa valavu ku mpando wa valavu kuti atseke valavu, zomwe zimalepheretsa cholowera kuti chisabwerere m'mbuyo, kotero chimakhala ndi ntchito yosabwerera. Mavalavu owunikira oyima amagwiritsidwa ntchito kwambiri m'mafakitale a mankhwala, mafuta osungunuka, madzi ndi mafakitale ena. Malinga ndi kapangidwe ka valavu yowunikira, imatha kugawidwa m'mitundu itatu: valavu yowunikira yokweza, valavu yowunikira yokweza ndi valavu yowunikira gulugufe.
Vavu yomwe imagwiritsidwa ntchito poletsa kuti sing'anga ibwerere m'mbuyo imatchedwanso check valve, one-way valve, reverse flow valve, ndi back pressure valve. Vavu yoyesera ndi mtundu wa valavu yodziyimira yokha, ntchito yake yayikulu ndikuletsa kuti sing'anga ibwerere m'mbuyo, kuletsa pampu ndi drive motor kuti zisabwerere m'mbuyo, komanso kutulutsa sing'anga yoyendetsera chidebe. Mavavu oyesera angagwiritsidwenso ntchito kupereka mapaipi komwe kupanikizika kungakwere kupita ku system yothandizira yomwe imaposa kupanikizika kwa system. Mavavu oyesera amatha kugawidwa m'mavavu oyesera ozungulira (ozungulira molingana ndi pakati pa mphamvu yokoka) ndi mavavu oyesera okweza (oyenda motsatira mzere). Ntchito ya mtundu uwu wa valavu ndikulola sing'anga kuyenda mbali imodzi ndikuletsa kuyenda kwa njira. Nthawi zambiri valavu yamtunduwu imagwira ntchito yokha pansi pa mphamvu ya madzi yomwe ikuyenda mbali imodzi, valve flap imatsegulidwa; madzi akamayenda mbali inayo, kuthamanga kwa madzi ndi kudzidzimutsa kwa valve flap kumagwira ntchito pampando wa valve, potero kumadula kuyenda. Pakati pawo, valavu yowunikira ulusi wamkati ndi valavu yowunikira yoyima imatanthawuza kutsegula ndi kutseka kwa valavu yokha kutengera momwe zinthu zikuyendera. Mavalavu owunikira olumikizidwa ndi a mtundu uwu wa valavu, kuphatikiza mavalavu owunikira ozungulira ndi mavalavu owunikira okweza. Vavu yowunikira yozungulira ili ndi njira yolumikizira unyolo ndi diski ya valve ngati chitseko chomwe chimakhala momasuka pamwamba pa mpando wa valavu wopendekera. Pofuna kuonetsetsa kuti valavu yowunikira imatha kufika pamalo oyenera pamwamba pa mpando wa valavu nthawi iliyonse, valavu yowunikira imapangidwa mu njira yolumikizira unyolo kuti valavu yowunikira ikhale ndi malo okwanira ozungulira ndikupangitsa valavu yowunikira kukhudza mpando wa valavu. valavu yowunikira ikhoza kupangidwa ndi chitsulo, chikopa, rabala, kapena chophimba chopangidwa chingaikidwe pachitsulo, kutengera zomwe zikufunika pakugwira ntchito. Vavu yowunikira yozungulira ikatsegulidwa kwathunthu, kuthamanga kwamadzimadzi kumakhala kosalephereka, kotero kutsika kwa kuthamanga kudzera mu valavu kumakhala kochepa. Disiki ya valavu ya valavu yowunikira yokweza imakhala pamwamba pa mpando wa valavu womwe uli pa thupi la valavu. Kupatula kuti diski ikhoza kukwezedwa ndikutsitsidwa momasuka, valavu yotsalayi ili ngati valavu yotseka. Kupanikizika kwamadzimadzi kumakweza diski kuchokera pamwamba pa mpando wa valavu, ndipo kuyenda kwa medium kumapangitsa kuti diski ibwerere ku mpando ndikudula kuyenda. Malinga ndi momwe zimagwiritsidwira ntchito, valavu ikhoza kukhala yopangidwa ndi chitsulo chokha, kapena ikhoza kukhala ngati pedi ya rabara kapena mphete ya rabara yolumikizidwa pa chimango cha diski. Monga valavu yoyimitsa, njira yamadzimadzi kudzera mu valavu yoyezera kukweza nayonso ndi yopapatiza, kotero kutsika kwa kuthamanga kudzera mu valavu yoyezera kukweza ndi kwakukulu kuposa kwa valavu yoyezera kugwedezeka, ndipo kuyenda kwa valavu yoyezera kukweza sikuli kocheperako.
Vavu yomwe imagwiritsidwa ntchito poletsa kuti sing'anga ibwerere m'mbuyo imatchedwanso check valve, one-way valve, reverse flow valve, ndi back pressure valve. Vavu yoyesera ndi mtundu wa valavu yodziyimira yokha, ntchito yake yayikulu ndikuletsa kuti sing'anga ibwerere m'mbuyo, kuletsa pampu ndi drive motor kuti zisabwerere m'mbuyo, komanso kutulutsa sing'anga yoyendetsera chidebe. Mavavu oyesera angagwiritsidwenso ntchito kupereka mapaipi komwe kupanikizika kungakwere kupita ku system yothandizira yomwe imaposa kupanikizika kwa system. Mavavu oyesera amatha kugawidwa m'mavavu oyesera ozungulira (ozungulira molingana ndi pakati pa mphamvu yokoka) ndi mavavu oyesera okweza (oyenda motsatira mzere). Ntchito ya mtundu uwu wa valavu ndikulola sing'anga kuyenda mbali imodzi ndikuletsa kuyenda kwa njira. Nthawi zambiri valavu yamtunduwu imagwira ntchito yokha pansi pa mphamvu ya madzi yomwe ikuyenda mbali imodzi, valve flap imatsegulidwa; madzi akamayenda mbali inayo, kuthamanga kwa madzi ndi kudzidzimutsa kwa valve flap kumagwira ntchito pampando wa valve, potero kumadula kuyenda. Pakati pawo, valavu yowunikira ulusi wamkati ndi valavu yowunikira yoyima imatanthawuza kutsegula ndi kutseka kwa valavu yokha kutengera momwe zinthu zikuyendera. Mavalavu owunikira olumikizidwa ndi a mtundu uwu wa valavu, kuphatikiza mavalavu owunikira ozungulira ndi mavalavu owunikira okweza. Vavu yowunikira yozungulira ili ndi njira yolumikizira unyolo ndi diski ya valve ngati chitseko chomwe chimakhala momasuka pamwamba pa mpando wa valavu wopendekera. Pofuna kuonetsetsa kuti valavu yowunikira imatha kufika pamalo oyenera pamwamba pa mpando wa valavu nthawi iliyonse, valavu yowunikira imapangidwa mu njira yolumikizira unyolo kuti valavu yowunikira ikhale ndi malo okwanira ozungulira ndikupangitsa valavu yowunikira kukhudza mpando wa valavu. valavu yowunikira ikhoza kupangidwa ndi chitsulo, chikopa, rabala, kapena chophimba chopangidwa chingaikidwe pachitsulo, kutengera zomwe zikufunika pakugwira ntchito. Vavu yowunikira yozungulira ikatsegulidwa kwathunthu, kuthamanga kwamadzimadzi kumakhala kosalephereka, kotero kutsika kwa kuthamanga kudzera mu valavu kumakhala kochepa. Disiki ya valavu ya valavu yowunikira yokweza imakhala pamwamba pa mpando wa valavu womwe uli pa thupi la valavu. Kupatula kuti diski ikhoza kukwezedwa ndikutsitsidwa momasuka, valavu yotsalayi ili ngati valavu yotseka. Kupanikizika kwamadzimadzi kumakweza diski kuchokera pamwamba pa mpando wa valavu, ndipo kuyenda kwa medium kumapangitsa kuti diski ibwerere ku mpando ndikudula kuyenda. Malinga ndi momwe zimagwiritsidwira ntchito, valavu ikhoza kukhala yopangidwa ndi chitsulo chokha, kapena ikhoza kukhala ngati pedi ya rabara kapena mphete ya rabara yolumikizidwa pa chimango cha diski. Monga valavu yoyimitsa, njira yamadzimadzi kudzera mu valavu yoyezera kukweza nayonso ndi yopapatiza, kotero kutsika kwa kuthamanga kudzera mu valavu yoyezera kukweza ndi kwakukulu kuposa kwa valavu yoyezera kugwedezeka, ndipo kuyenda kwa valavu yoyezera kukweza sikuli kocheperako.
Nortech ndi m'modzi mwa opanga ma valve otsogola ku China omwe ali ndi satifiketi ya ISO9001 yapamwamba.
Zinthu zazikulu:Valavu ya Gulugufe,Valavu ya Mpira,Valavu ya Chipata,Valavu Yowunikira,Globe Vavlve,Zipangizo za Y,Chotsukira Magetsi,Zipangizo zoyezera mpweya (Pneumatic Acurators).
Nthawi yotumizira: Ogasiti-10-2021