Mufunika valavu yomwe imakhala yamphamvu kuposa chidutswa chimodzi koma osati yamtengo wapatali ngati zidutswa zitatu. Kusankha yolakwika kumatanthauza kulipira mochulukira kapena kupeza valavu yomwe simungathe kukonza ikafunika.

Vavu yamagulu awiri imakhala ndi ziwalo ziwiri zazikulu zomwe zimalumikizana, kutsekereza mpira ndikusindikiza mkati. Kapangidwe kameneka kamakhala kolimba kuposa valavu yachidutswa chimodzi ndipo imalola kukonzanso, ngakhale kuti choyamba iyenera kuchotsedwa paipi.

Valve yamitundu iwiri ndi kavalo weniweni m'dziko la plumbing. Ndi imodzi mwa mitundu yodziwika bwino yomwe ndimakambirana ndi anzanga, monga Budi, woyang'anira zogula ku Indonesia. Makasitomala ake, omwe nthawi zambiri amakhala makontrakitala ndi ogawa, amafunikira njira yodalirika, yotsika mtengo pantchito zatsiku ndi tsiku. Mapangidwe amitundu iwiri amakhudza malo okoma bwino. Amapereka kukweza kwakukulu kwa mphamvu ndi ntchito pa ma valve ofunikira kwambiri popanda mtengo wapamwamba wa zitsanzo zovuta za mafakitale. Kuti mumvetsetse mtengo wake, muyenera kuwona pomwe ikukwanira pachithunzi chachikulu.

Kodi valve yazigawo ziwiri ndi chiyani?

Mutha kuwona msoko pomwe thupi la valve limalumikizidwa, koma izi zikutanthauza chiyani? Kumvetsetsa kamangidwe kake ndikofunikira kuti mudziwe ngati ndi chisankho choyenera ku thanzi lanu lanthawi yayitali.

Valavu yokhala ndi zigawo ziwiri imakhala ndi thupi lalikulu ndi chidutswa chachiwiri, cholumikizira chomaliza, chomwe chimalowetsamo. Kulumikizana kwa ulusi uku kumakhala ndi mpira ndi mipando, zomwe zimapangitsa kuti valavu ikhale yogwira ntchito komanso yosagwirizana ndi kukakamizidwa kuposa kapangidwe kachidutswa chimodzi.

Kupanga kwa avalavu iwirindi mbali yake yaikulu. Tangoganizani kuti ma valve amapangidwa m'magawo awiri. Gawo lalikulu limakhala ndi tsinde ndi chogwirira, pomwe gawo laling'ono limakhala ndi kapu ya ulusi. Akalumikizidwa pamodzi, amamatira pa mpira ndi mipando yofewa (yomwe nthawi zambiri imapangidwa ndi PTFE) yomwe imapanga chisindikizo. Thupi lopangidwa ndi ulusili ndi lamphamvu kwambiri kuposa valavu ya chidutswa chimodzi, pomwe mpirawo umalowetsedwa kudzera pachibowo chaching'ono, chomwe nthawi zambiri chimafuna mpira wawung'ono (doko lochepetsedwa). Kumanga kwa zigawo ziwiri kumapangitsa kuti mpira ukhale waukulu, "wodzaza doko", kutanthauza kuti dzenje la mpirawo ndi lofanana ndi chitoliro, zomwe zimapangitsa kuyenda bwino ndi kutayika kochepa. Ngati chisindikizo chatha, mutha kumasula thupilo, kusintha ziwalo zake, ndi kuzibwezeretsanso kuti zigwire ntchito. Ndi malo abwino apakati kwa makasitomala ambiri a Budi omwe amafunikira valve yomwe ili yolimba komanso yokonzedwa.

Kodi pali kusiyana kotani pakati pa valavu ya mpira ya mtundu 1 ndi mtundu 2?

Mumamva mawu ngati “Mtundu 1” ndi “Mtundu 21” koma osadziwa kuti akutanthauza chiyani. Kusankha motengera mawuwa osawamvetsetsa kungatanthauze kuphonya mbali zazikulu zachitetezo.

Mawuwa sakutanthauza kamangidwe ka thupi (monga zidutswa ziwiri) koma kupanga mibadwo, nthawi zambiri ma valve ogwirizana. "Mtundu wa 21" ndi chidule chamakampani pamapangidwe amakono okhala ndi chitetezo chokwanira komanso magwiridwe antchito.

Ndikofunika kwambiri kuti tisasokoneze kalembedwe ka thupi ndi manambala a "mtundu". Valavu ya "zidutswa ziwiri" imalongosola momwe thupi limapangidwira mwakuthupi. Mawu ngati "Mtundu wa 21," kumbali ina, amafotokoza zazinthu zamakono, ndipo pafupifupi nthawi zonse amapezeka pazigawo zitatu zenizeni za mgwirizano. Ndiyenera kumveketsa bwino izi ku timu ya Budi nthawi zina. Wogula atha kufunsa a"Type 21 valve yokhala ndi magawo awiri,"koma mawonekedwewo ndi gawo la kalasi yosiyana ya vavu. Chofunikira kwambiri pamtundu wa Type 21 ndiblock-safe union nut, zomwe zimalepheretsa kuti valavu isawonongeke mwangozi ndikutsegulidwa pamene dongosolo likupanikizika. Ichi ndi mbali yofunika kwambiri ya chitetezo. Amaphatikizanso tsinde la O-ringing kuti asindikize bwino zogwirira ntchito komanso cholumikizira chomangirira chowonjezera cholumikizira. Izi ndizomwe zimafunikira kwambiri pantchito zomwe zimafunikira kwambiri, pomwe valavu yokhala ndi magawo awiri ndiyosankhika yodalirika pantchito yanthawi zonse.

Kodi valve yanjira ziwiri imagwiritsidwa ntchito bwanji?

Mukungofunika kuyimitsa kapena kuyambitsa madzi. Ndi mitundu yonse yovuta ya valavu yomwe ilipo, ndizosavuta kusokoneza yankho ndikuwononga kwambiri pazinthu zosafunikira pantchitoyo.

Valavu yanjira ziwiri imagwiritsidwa ntchito poyang'anira / kuzimitsa paipi yowongoka. Ili ndi madoko awiri - polowera ndi potulukira - ndipo imapereka njira yosavuta, yodalirika yotsekera kumayendedwe osawerengeka.

Valve yanjira ziwiri ndi mtundu wofala kwambiri wa valve womwe ulipo. Imagwira ntchito imodzi: imalekanitsa kuyenda. Ganizirani ngati chosinthira chowunikira madzi - chimakhala choyaka kapena chozimitsa. Ma valve ambiri a mpira omwe mudzawawone, kuphatikizapo pafupifupi ma valve awiri, ndi ma valve awiri. Ndiwo msana wa machitidwe a mapaipi kulikonse. Mumawagwiritsa ntchito kutseka madzi kupita kumalo opopera madzi, kupatula chida chokonzera, kapena ngati chotseka chachikulu cha nyumba. Kuphweka kwawo ndiko mphamvu zawo. Izi ndizosiyana ndi ma valve ambiri, monga valve ya njira zitatu, zomwe zimapangidwira kuti zisokoneze kutuluka, monga kutumiza madzi pansi pa njira imodzi kapena ina. Kwa 95% ya ntchito zomwe makasitomala a Budi akukumana nazo, valavu yosavuta, yamphamvu, yanjira ziwiri ndiyo chida choyenera. Mapangidwe amitundu iwiri ndi chisankho chosangalatsa komanso chofala kwambiri pantchito yofunikayi.

Kodi pali kusiyana kotani pakati pa chidutswa chimodzi ndi valavu yamagulu atatu?

Mukusankha pakati pa valavu yotsika mtengo kwambiri ndi yokwera mtengo kwambiri. Kusankha molakwika kumatanthauza kuti mwina simungathe kukonza vuto kapena mwawononga ndalama pazinthu zomwe simungagwiritse ntchito.

Kusiyana kwakukulu ndi serviceability. Valve yachidutswa chimodzi ndi gawo losindikizidwa, lotayidwa. Valve yokhala ndi magawo atatu imatha kukonzedwa mosavuta ikadali yolumikizidwa ndi chitoliro. Valve yamitundu iwiri imakhala pakati.

Kumvetsetsa gawo limodzi ndi zosankha zitatu kumasonyezadi chifukwa chake valavu yamagulu awiri ndi yotchuka kwambiri. Agawo limodzivalavu imapangidwa kuchokera ku thupi limodzi, kupangitsa kuti ikhale yotsika mtengo koma yosatheka kutsegula kuti ikonzedwe. Ndi "ntchito ndikusintha" chinthu chabwino kwambiri pamizere yosafunikira. Pamapeto ena ndivalve yamagulu atatu. Ili ndi thupi lapakati ndi zolumikizira ziwiri zosiyana zomwe zimagwiridwa ndi mabawuti aatali. Mapangidwe awa amakulolani kuchotsa gawo lonse lapakati la valavu kuti musinthe zisindikizo popanda kudula chitoliro. Ichi ndi chisankho chapamwamba cha zomera zamakampani kapena maiwe amalonda kumene nthawi yopuma imakhala yokwera mtengo kwambiri. Thezidutswa ziwirivalavu imapereka mgwirizano wangwiro. Ndiwolimba kwambiri ndipo nthawi zambiri imakhala ndi kuyenda bwino kuposa chidutswa chimodzi, ndipo imatha kukonzedwa. Ngakhale mukuyenera kuchotsa pamzere kuti mukonze, ndiko kugulitsa kovomerezeka kwamtengo wake wotsika poyerekeza ndi valve yazigawo zitatu.

Kuyerekeza kwa Mtundu wa Valve Thupi

Mapeto

A valavu yamitundu iwirindi kavalo wodalirika, wokonzedwanso. Zimapereka mphamvu zokwanira komanso mtengo wamtengo wapatali pakati pa chidutswa chimodzi chotayika ndi ntchito zapamwamba, mapangidwe atatu azinthu zambiri.