Muyenera kuyang'anira kutuluka kwa madzi, koma onani mitundu yambiri ya ma valve. Kusankha yolakwika kungayambitse kutayikira, kutsekeka, kapena kulephera kuwongolera dongosolo lanu moyenera, zomwe zimabweretsa kuwonongeka kwamtengo wapatali.

Pali mitundu yambiri ya ma valve a PVC, koma odziwika kwambiri ndi awama valve a mpirapa / off control,fufuzani ma valvekuteteza kubwerera mmbuyo, ndima valve pachipatachifukwa chodzipatula mosavuta. Mtundu uliwonse umagwira ntchito yosiyana kwambiri mkati mwa dongosolo la madzi.

Kumvetsetsa ntchito yofunikira ya valve iliyonse ndikofunikira. Nthawi zambiri ndimagwiritsa ntchito fanizo losavuta ndikalankhula ndi anzanga ngati Budi ku Indonesia. Vavu ya mpira ili ngati chosinthira chowunikira — chimayatsa kapena kuzimitsa, mwachangu. Vavu yachipata imakhala ngati chotchinga pang'onopang'ono, mwadala. Ndipo valavu ya cheke ili ngati chitseko chanjira imodzi chomwe chimangolowetsa magalimoto kunjira imodzi. Makasitomala ake - makontrakitala, alimi, oyika ma pool - amapeza kuti izi zimapangitsa kukhala kosavuta kusankha chinthu choyenera. Mukadziwa ntchito yomwe valve ikuyenera kuchita, kusankha kumamveka bwino.

Kodi ma valve onse a PVC ndi ofanana?

Mukuwona ma valve awiri a mpira a PVC omwe amawoneka ofanana, koma amodzi amawononga kuwirikiza kawiri. Zimakhala zokopa kugula yotsika mtengo, koma mukudandaula kuti idzalephera ndikubweretsa tsoka.

Ayi, ma valve onse a PVC sali ofanana. Amasiyana kwambiri pamtundu wazinthu, zida zosindikizira, kapangidwe kake, komanso kupanga molondola. Kusiyana kumeneku kumakhudza mwachindunji kutalika kwa valve ndi momwe zimagwirira ntchito molimbika.

Kusiyana pakati pa valavu yayikulu ndi yosauka ndizomwe simungathe kuziwona nthawi zonse. Choyamba ndiZithunzi za PVCyokha. Ife ku Pntek timagwiritsa ntchito 100% PVC ya namwali, yomwe ndi yamphamvu, yokhazikika, ndipo imakhala ndi gloss yomaliza. Ma valve otsika mtengo nthawi zambiri amagwiritsa ntchito PVC yosinthidwanso yosakanikirana ndi zodzaza ngaticalcium carbonate. Izi zimapangitsa kuti valavu ikhale yolemera kwambiri, komanso imakhala yolimba kwambiri komanso yowonongeka. Chotsatira ndizisindikizo. Mphete zoyera mkati mwa chisindikizocho zimatchedwa mipando. Mavavu abwino amagwiritsa ntchito zoyeraPTFE (Teflon)kwa chisindikizo chosalala, chochepa, chokhalitsa. Otsika mtengo amagwiritsa ntchito mapulasitiki otsika omwe amatha msanga. Mphete zakuda za O pa tsinde ziyenera kukhala EPDM, yomwe ili yabwino kwambiri pamadzi ndi UV kukana, osati mphira wotchipa wa NBR. Pomaliza, zimafika mpakakulondola. Zopanga zathu zokha zimatsimikizira kuti valavu iliyonse imatembenuka bwino. Mavavu osapangidwa bwino amatha kukhala olimba komanso ovuta kutembenuza, kapena omasuka kwambiri amamva ngati osadalirika.

Chabwino n'chiti, PVC kapena valavu yachitsulo?

Chitsulo chimakhala cholemera komanso champhamvu, pomwe PVC imamva yopepuka. Chidziwitso chanu chimati chitsulo nthawi zonse ndi chisankho chabwinoko, koma lingalirolo likhoza kuyambitsa dongosolo lomwe silingawonongeke.

Palibe chabwino; amamangidwira ntchito zosiyanasiyana. PVC ndiyabwino kumadzi ozizira komanso malo owononga pomwe chitsulo chimachita dzimbiri kapena kugwira. Chitsulo ndi chofunikira pa kutentha kwakukulu, kuthamanga kwambiri, ndi mankhwala ena.

Kusankha pakati pa PVC ndi chitsulo sikungokhudza mphamvu, ndi za chemistry. Ubwino waukulu wa PVC ndikutichitetezo ku dzimbiri ndi dzimbiri. Budi ali ndi kasitomala m'makampani opanga zam'madzi yemwe ankasintha ma valve ake amkuwa chaka chilichonse chifukwa madzi amchere amawapangitsa kuti agwire. Chiyambireni ku mavavu athu a PVC, wakhala akukumana ndi ziro kwa zaka zisanu. Amagwira ntchito bwino ngati tsiku loyamba. Apa ndipamene PVC imapambana bwino: kuthirira ndi feteleza, maiwe osambira, mizere yamadzi amchere, ndi mipope wamba. Komabe, PVC ili ndi malire ake. Sichingagwiritsidwe ntchito pamadzi otentha, chifukwa chidzafewetsa ndikulephera. Ilinso ndi mphamvu zochepa kuposa zitsulo. Valve yachitsulo (monga chitsulo kapena mkuwa) ndiyo yokhayo yosankha mizere ya nthunzi, machitidwe a madzi otentha, kapena ntchito zamakampani zothamanga kwambiri. Chofunikira ndikufananiza zida za valve ndi madzi omwe akuyenda.

PVC vs. Chitsulo: Sankhani Iti?

Kodi valavu ya PVC 'yabwino' ndi chiyani?

Mukugula pa intaneti ndikupeza vavu ya PVC pamtengo wotsika kwambiri. Mumadabwa ngati ndikugula mwanzeru kapena mukugula vuto lamtsogolo lomwe lidzatsikira 2 AM.

Valavu "yabwino" ya PVC imapangidwa kuchokera ku 100% namwali PVC, imagwiritsa ntchito mipando ya PTFE yapamwamba ndi mphete za EPDM O, imatembenuka bwino, ndipo yayesedwa pafakitale kuti itsimikizire kuti ilibe kutayikira.

Pali zinthu zingapo zomwe ndimauza gulu la Budi kuti liziyang'ana. Choyamba, fufuzanithupi. Iyenera kukhala yosalala, yonyezimira pang'ono. Mawonekedwe osawoneka bwino, a chalky nthawi zambiri amawonetsa kugwiritsa ntchito zodzaza, zomwe zimapangitsa kuti zikhale zolimba. Chachiwiri,gwiritsani ntchito chogwirira. Iyenera kutembenuka ndi kukana kosalala, kosasunthika kuchokera kutseguka kwathunthu mpaka kutsekedwa kwathunthu. Ngati ili yolimba kwambiri, yonjenjemera, kapena ikumva ngati gritty, kuumbidwa kwamkati kumakhala koyipa. Izi zimabweretsa kuchucha ndi chogwirira chomwe chimatha kung'ambika. Chachitatu, fufuzanizizindikiro zomveka. Valavu yapamwamba idzadziwika bwino ndi kukula kwake, kupanikizika (monga PN10 kapena PN16), ndi mtundu wa zinthu (PVC-U). Opanga odziwika amanyadira ma specs awo. Pomaliza, zimafika pakudalira. Ku Pntek, valavu iliyonse yomwe timapanga imayesedwa isanayambe kuchoka ku fakitale. Izi zimatsimikizira kuti sizikutha. Ndilo chinthu chosawoneka chomwe mumalipira: mtendere wamumtima womwe udzangogwira ntchito.

Kodi valavu yatsopano ya PVC imapanga kusiyana?

Muli ndi valavu yakale yomwe imakhala yolimba kuti itembenuke kapena yomwe imadontha pang'onopang'ono. Zikuwoneka ngati nkhani yaying'ono, koma kuinyalanyaza kungasiya dongosolo lanu kukhala pachiwopsezo chamavuto akulu.

Inde, valavu yatsopano ya PVC imapanga kusiyana kwakukulu. Imawongolera chitetezo nthawi yomweyo posintha zinthu zosalimba, imatsimikizira chisindikizo chabwino kuti chiyimitse kutayikira, komanso imapereka ntchito yosalala, yodalirika mukaifuna kwambiri.

Kusintha valavu yakale sikungokonza; ndi kukweza kwakukulu m'magawo atatu ofunika. Choyamba ndichitetezo. Vavu ya PVC yomwe yakhala padzuwa kwa zaka zambiri imakhala yolimba. Chogwiririracho chikhoza kudumpha, kapena choyipitsitsa, thupi likhoza kusweka chifukwa chazing'ono, zomwe zimayambitsa kusefukira kwa madzi. Valavu yatsopano imabwezeretsa mphamvu zoyambira za zinthuzo. Chachiwiri ndikudalirika. Kudontha kwapang'onopang'ono kuchokera ku valavu yakale sikuposa madzi otayika; zikusonyeza kuti zisindikizo zamkati zalephera. Vavu yatsopano yokhala ndi mipando yatsopano ya PTFE ndi mphete za EPDM O imapereka kutsekeka kwabwino, kolimba kolimba komwe mungadalire. Chachitatu ndikugwira ntchito. Pakachitika ngozi, muyenera kutseka madzi mofulumira. Vavu yakale yomwe imakhala yolimba ndi msinkhu kapena sikelo imakhala yopanda ntchito. Valavu yatsopano imatembenuka bwino, kukupatsani kuwongolera mwachangu. Kwa mtengo wochepa wa avalavu, mumabwezeretsa chitetezo, kudalirika, ndi ntchito ya malo ovuta kwambiri mu dongosolo lanu.

Mapeto

ZosiyanaMavavu a PVCkugwira ntchito zina. Ubwino umatanthauzidwa ndi zida zoyera komanso kupanga molondola, zomwe zimatsimikizira moyo wautali komanso wodalirika kuposa njira yotsika mtengo.