Mukuyesera kuyitanitsa ma valve, koma wogulitsa wina amawatcha PVC ndipo wina amawatcha UPVC. Chisokonezochi chimakupangitsani nkhawa kuti mukufanizira zinthu zosiyanasiyana kapena mukugula zinthu zolakwika.

Kwa mavavu olimba a mpira, palibe kusiyana pakati pa PVC ndi UPVC. Mawu onsewa amatanthauza zofananazinthu zopanda pulasitiki za polyvinyl chloride, yomwe ndi yamphamvu, yosachita dzimbiri, komanso yabwino pamadzi.

Ili ndi limodzi mwamafunso ambiri omwe ndimapeza, ndipo zimabweretsa chisokonezo chosafunikira pamayendedwe operekera. Posachedwapa ndikulankhula ndi Budi, woyang'anira zogula kuchokera kwa wofalitsa wamkulu ku Indonesia. Ogula ake aang'ono atsopano adakakamira, kuganiza kuti akufunika kupeza mitundu iwiri yosiyana ya ma valve. Ndinamufotokozera kuti kwa ma valve okhwima omwe timapanga ku Pntek, ndipo kwa mafakitale ambiri, mayina amagwiritsidwa ntchito mosiyana. Kumvetsetsa chifukwa chake kumakupatsani chidaliro pazosankha zanu zogula.

Kodi pali kusiyana kotani pakati pa PVC ndi UPVC?

Mukuwona zilembo ziwiri zosiyana ndipo mwachilengedwe mumaganiza kuti zikuyimira zida ziwiri zosiyana. Kukayika uku kungathe kuchepetsa mapulojekiti anu pamene mukuyesera kutsimikizira zolondola.

Kwenikweni, ayi. Pankhani ya mapaipi olimba ndi ma valve, PVC ndi UPVC ndizofanana. "U" mu UPVC imayimira "unplasticized," zomwe ndi zoona kwa mavavu onse olimba a PVC.

Chisokonezocho chimachokera ku mbiri yakale ya mapulasitiki. Polyvinyl chloride (PVC) ndiye maziko ake. Kuti ikhale yosinthika pazinthu monga ma hose a m'munda kapena kutsekereza waya wamagetsi, opanga amawonjezera zinthu zotchedwa plasticizers. Kuti tisiyanitse mawonekedwe apachiyambi, okhwima ndi osinthika, mawu oti "unplasticized" kapena "UPVC" adatulukira. Komabe, pazogwiritsa ntchito ngati makina oponderezedwa amadzi, simungagwiritse ntchito mtundu wosinthika. Mapaipi onse olimba a PVC, zolumikizira, ndi mavavu ampira, mwachilengedwe chawo, alibe pulasitiki. Kotero, pamene makampani ena amatcha malonda awo kuti "UPVC" kuti atchuke kwambiri, ndipo ena amangogwiritsa ntchito "PVC" yodziwika bwino, iwo akunena za zinthu zolimba zomwezo, zolimba. Ku Pntek, timangowatchula kutiPVC valavu mpirachifukwa ndi mawu ofala kwambiri, koma onse mwaukadaulo ndi UPVC.

Kodi mavavu a PVC ndi abwino?

Mukuwona kuti PVC ndi pulasitiki ndipo imawononga ndalama zochepa kuposa zitsulo. Izi zimakupangitsani kukayikira zamtundu wake ndikudzifunsa ngati ndizokhazikika pazofunikira zanu zazitali, zazitali.

Inde, mavavu apamwamba a mpira wa PVC ndiabwino kwambiri pazolinga zawo. Sachita dzimbiri ndi dzimbiri, opepuka, ndipo amapereka moyo wautali wautumiki m'madzi ozizira, omwe nthawi zambiri amaposa ma valve achitsulo.

Mtengo wawo suli chabe pa mtengo wawo wotsika; zili m'machitidwe awo m'malo enieni. Mavavu achitsulo, monga mkuwa kapena chitsulo, amatha dzimbiri kapena kuwononga pakapita nthawi, makamaka m'makina okhala ndi madzi oyeretsedwa, madzi amchere, kapena mankhwala ena. Kuwonongeka kumeneku kungapangitse kuti valavu igwire, zomwe zimapangitsa kuti zikhale zosatheka kutembenuka mwadzidzidzi. PVC sichitha dzimbiri. Imalowetsa m'madzi kuzinthu zambiri zamadzi, mchere, ndi zidulo zofatsa. Ichi ndichifukwa chake makasitomala a Budi omwe ali m'mphepete mwa nyanja ku Indonesia amagwiritsa ntchito mavavu a PVC okha. Madzi amchere amatha kuwononga mavavu achitsulo m'zaka zingapo chabe, koma mavavu athu a PVC akupitiriza kugwira ntchito bwino kwa zaka khumi kapena kuposerapo. Pa ntchito iliyonse pansi pa 60°C (140°F), aValve ya mpira wa PVCsi njira "yotsika mtengo" chabe; nthawi zambiri ndi chisankho chodalirika komanso chokhalitsa chifukwa sichidzawononga dzimbiri.

Kodi valavu yabwino kwambiri ya mpira ndi iti?

Mukufuna kugula valavu "yabwino" kuti muwonetsetse kuti dongosolo lanu ndi lodalirika. Koma ndi zida zambiri zomwe zilipo, kusankha chomwe chili chabwino kwambiri kumakhala kolemetsa komanso kowopsa.

Palibe valavu imodzi "yabwino" ya mpira pa ntchito iliyonse. Valavu yabwino kwambiri ndi yomwe zida zake ndi kapangidwe kake zimagwirizana bwino ndi kutentha kwa dongosolo lanu, kupanikizika, ndi chilengedwe chamankhwala.

"Zabwino" nthawi zonse zimagwirizana ndi kugwiritsa ntchito. Kusankha yolakwika kuli ngati kugwiritsa ntchito galimoto yonyamula miyala—ndi chida cholakwika pa ntchitoyo. Valavu yachitsulo chosapanga dzimbiri ndi yabwino kwambiri kutentha komanso kupanikizika, koma ndiyokwera mtengo kwambiri pamakina ozungulira dziwe, pomwe valavu ya PVC ndiyabwino kwambiri chifukwaklorini kukana. Nthawi zonse ndimatsogolera anzanga kuti aganizire za momwe polojekiti yawo ikuyendera. Valavu ya PVC ndiye ngwazi yamakina amadzi ozizira chifukwa cha kukana kwa dzimbiri komanso mtengo wake. Kwa madzi otentha, muyenera kukweraMtengo wa CPVC. Kwa gasi wothamanga kwambiri kapena mafuta, mkuwa ndi chisankho chachikhalidwe, chodalirika. Pazakudya zamagulu kapena mankhwala owononga kwambiri, zitsulo zosapanga dzimbiri zimafunika nthawi zambiri. Chosankha "chabwino kwambiri" ndichomwe chimapereka chitetezo chofunikira komanso moyo wautali pamtengo wotsika kwambiri.

Chitsogozo cha Zida Zopangira Mpira

Kodi pali kusiyana kotani pakati pa PVC U ndi UPVC?

Pomwe mumaganiza kuti mukumvetsetsa PVC ndi UPVC, mumawona "PVC-U" pa chikalata chaukadaulo. Mawu atsopanowa akuwonjezera chisokonezo china, kukupangitsani kuti muganizirenso kumvetsetsa kwanu.

Palibe kusiyana konse. PVC-U ndi njira ina chabe yolembera PVC. "-U" imayimiranso unplasticized. Ndi msonkhano wamatchulidwe omwe nthawi zambiri umawonedwa mumiyezo yaku Europe kapena yapadziko lonse lapansi (monga DIN kapena ISO).

Ganizirani izi ngati kunena "madola 100" motsutsana ndi "ndalama 100." Iwo ndi mawu osiyana a chinthu chomwecho. M'dziko la mapulasitiki, zigawo zosiyanasiyana zidapanga njira zosiyanitsira zolemba izi. Ku North America, "PVC" ndi liwu lodziwika bwino la chitoliro chokhazikika, ndipo "UPVC" nthawi zina amagwiritsidwa ntchito kumveka bwino. Ku Europe komanso pansi pamiyezo yapadziko lonse lapansi, "PVC-U" ndiye liwu lodziwika bwino laumisiri lofotokozera "wopanda pulasitiki." Kwa wogula ngati Budi, ichi ndi chidziwitso chofunikira kwa gulu lake. Akawona ma valavu aku Europe omwe amatchula ma valve a PVC-U, amadziwa ndi chidaliro kuti mavavu athu okhazikika a PVC amakwaniritsa zofunikira. Zonse zimabwera kuzinthu zomwezo: polima yolimba, yolimba, yopanda pulasitiki yomwe ili yabwino kwa mavavu a mpira. Osagwidwa ndi zilembo; yang'anani kwambiri pazachuma komanso momwe amagwirira ntchito.

Mapeto

PVC, UPVC, ndi PVC-U zonse zimatanthawuza zolimba zomwezo, zopanda pulasitiki zomwe zili zoyenera mavavu a mpira wamadzi ozizira. Kusiyana kwa mayina kumangokhalira kuchigawo kapena mbiri yakale.