Uzama uku-odola iivalvu, kodwa omnye umthengisi uzibiza ngokuba yi-PVC kwaye omnye uzibiza ngokuba yi-UPVC. Oku kudideka kukwenza ukhathazeke ngokuba uthelekisa iimveliso ezahlukeneyo okanye uthenga izinto ezingalunganga.
Kwiivalvu zebhola eziqinileyo, akukho mahluko phakathi kwePVC kunye neUPVC. Omabini la magama abhekisa kwinto enye.izinto ze-polyvinyl chloride ezingafakwanga iplastiki, enamandla, ayidli mhlwa, kwaye ifanelekile kwiinkqubo zamanzi.
Lo ngomnye wemibuzo endihlala ndiyibuza, kwaye udala ukudideka okungeyomfuneko kwikhonkco lokubonelela. Bendisandula ukuthetha noBudi, umphathi wokuthenga ovela kumsasazi omkhulu eIndonesia. Abathengi bakhe abatsha abancinci babebambekile, becinga ukuba kufuneka bafumane iintlobo ezimbini ezahlukeneyo zeevalvu. Ndamcacisela ukuba kwiivalvu eziqinileyo esizenzayo ePntek, nakuninzi lweshishini, amagama asetyenziswa ngokutshintshana. Ukuqonda isizathu kuya kukunika ukuzithemba kwizigqibo zakho zokuthenga.
Ngaba kukho umahluko phakathi kwePVC kunye neUPVC?
Ubona amagama amabini ahlukeneyo afinyeziweyo kwaye ngokwemvelo ucinge ukuba amele izinto ezimbini ezahlukeneyo. Oku kuthandabuza kunokulibazisa iiprojekthi zakho njengoko uzama ukuqinisekisa iinkcukacha ezichanekileyo.
Ngokwenyani, hayi. Kwimeko yeepayipi eziqinileyo kunye neevalvu, iPVC kunye neUPVC ziyafana. U-“U” kwi-UPVC umele “ongafakwanga iplastiki,” nto leyo sele injalo kuzo zonke iivalvu zePVC eziqinileyo.
Ukudideka kuvela kwimbali yeeplastiki. I-Polyvinyl chloride (PVC) sisiseko sezinto. Ukuze iguquguquke kwiimveliso ezifana neepayipi zegadi okanye i-insulation yocingo lombane, abavelisi bongeza izinto ezibizwa ngokuba zii-plasticizers. Ukwahlula uhlobo lokuqala noluqinileyo kwinguqulelo eguquguqukayo, kwavela igama elithi "unplasticized" okanye "UPVC". Nangona kunjalo, kwizicelo ezifana neenkqubo zamanzi ezixinzelelweyo, ubungasoze usebenzise uhlobo oluguquguqukayo. Zonke iipayipi ze-PVC eziqinileyo, izixhobo, kunye neevalvu zebhola, ngokwemvelo yazo, azinaplastiki. Ngoko ke, ngelixa ezinye iinkampani zibiza iimveliso zazo ngokuthi "UPVC" ukuba zichane ngakumbi, kwaye ezinye zisebenzisa "i-PVC" eqhelekileyo, zibhekisa kwizinto ezifanayo eziqinileyo neziqinileyo. KwaPntek, sizibiza nje ngokubaIivalvu zebhola zePVCkuba lelona gama lixhaphakileyo, kodwa zonke ngokwetekhnoloji ziyi-UPVC.
Ngaba iivalvu zebhola zePVC zilungile?
Uyabona ukuba i-PVC yiplastiki kwaye ixabisa kancinci kunesinyithi. Oku kukwenza uzibuze ngomgangatho wayo kwaye uzibuze ukuba ingaba ihlala ixesha elide ngokwaneleyo na kwizicelo zakho ezinzulu nezihlala ixesha elide.
Ewe, iivalvu zebhola zePVC ezikumgangatho ophezulu zilungile kakhulu kwinjongo yazo. Azinawo umhlwa kunye nokugqwala, zilula, kwaye zibonelela ngobomi obude bokusebenza kwiindawo ezibandayo, zihlala ziphumelela ngaphezu kweevalvu zesinyithi.
Ixabiso labo alikho nje kwixabiso labo eliphantsi; likwindlela abasebenza ngayo kwiindawo ezithile. Iivalvu zesinyithi, ezifana nobhedu okanye isinyithi, ziya kugqwala okanye zibole ngokuhamba kwexesha, ngakumbi kwiinkqubo ezinamanzi acociweyo, amanzi anetyuwa, okanye iikhemikhali ezithile. Oku kugqwala kunokubangela ukuba ivalvu ibambeke, okwenza kube nzima ukuyijika xa kukho imeko engxamisekileyo. I-PVC ayinakugqwala. Ayisebenzi ngokweekhemikhali kwiindidi ezininzi zamanzi, iityuwa, kunye nee-asidi ezithambileyo. Yingakho abathengi beBudi kushishino lwezolimo lwaselwandle e-Indonesia besebenzisa iivalvu zePVC kuphela. Amanzi anetyuwa aya kutshabalalisa iivalvu zesinyithi kwiminyaka embalwa nje, kodwa iivalvu zethu zePVC ziyaqhubeka nokusebenza kakuhle iminyaka elishumi nangaphezulu. Nakuphi na ukusetyenziswa okungaphantsi kwama-60°C (140°F), i-Ivalvu yebhola yePVCayisiyondlela "engabizi kakhulu" nje; idla ngokuba lolona khetho luthembekileyo noluhlala ixesha elide kuba alusoze lukwazi ukubola.
Yeyiphi ivalvu yebhola engcono kakhulu?
Ufuna ukuthenga ivalvu "eyona ilungileyo" ukuqinisekisa ukuba inkqubo yakho ithembekile. Kodwa ngenxa yezixhobo ezininzi ezikhoyo, ukukhetha eyona ilungileyo kuvakala kunzima kwaye kuyingozi.
Akukho valve yebhola "elungileyo" kuyo yonke imisebenzi. Ivalvu engcono kakhulu yileyo inezinto zayo kunye noyilo oluhambelana ngokugqibeleleyo nobushushu benkqubo yakho, uxinzelelo, kunye nemeko-bume yeekhemikhali.
“Eyona ilungileyo” isoloko ihambelana nesicelo. Ukukhetha engalunganga kufana nokusebenzisa imoto yezemidlalo ukuthutha ilitye elimdaka—sisixhobo esingafanelekanga somsebenzi. Ivalvu yentsimbi engagqwaliyo ilungile kakhulu kumaqondo obushushu aphezulu kunye noxinzelelo, kodwa ibiza kakhulu kwinkqubo yokujikeleza kwamanzi echibini, apho ivalvu yePVC ingcono ngenxa yayo.ukumelana nekhlorineNdisoloko ndikhokela amaqabane am ukuba acinge ngeemeko ezithile zeprojekthi yabo. Ivalvu yePVC yeyona ntshatsheli kwiinkqubo zamanzi abandayo ngenxa yokumelana kwayo nokugqwala kunye nexabiso layo. Kumanzi ashushu, kufuneka unyuse umgangatho.I-CPVC. Kwigesi okanye ioyile enoxinzelelo oluphezulu, ithusi lukhetho lwendabuko noluthembekileyo. Kwiindlela zokutya okanye iikhemikhali ezirhabaxa kakhulu, intsimbi engagqwaliyo idla ngokufuneka. Olona khetho "lulungileyo" lolona lubonelela ngokhuseleko olufunekayo kunye nexesha elide ngexabiso eliphantsi.
Isikhokelo sezinto zeValve yeBhola
| Izinto eziphathekayo | Eyona ilungileyo | Umda woBushushu | Inzuzo ephambili |
|---|---|---|---|
| I-PVC | Amanzi abandayo, amachibi okubhukuda, ukunkcenkceshela, ii-aquariums | ~60°C (140°F) | Ayizukubola, ifikeleleka. |
| I-CPVC | Amanzi ashushu nabandayo, iMizi-mveliso ethambileyo | ~90°C (200°F) | Ukumelana nobushushu okuphezulu kunePVC. |
| Intsimbi yobhedu | Imibhobho yamanzi, igesi, uxinzelelo oluphezulu | ~120°C (250°F) | Ihlala ixesha elide, ilungele izitywini ezinoxinzelelo oluphezulu. |
| Yenziwe ngentsimbi eshayinayo | Udidi lokutya, iikhemikhali, ubushushu obuphezulu/uxinzelelo | >200°C (400°F) | Amandla aphezulu kunye nokumelana neekhemikhali. |
Yintoni umahluko phakathi kwePVC U kunye neUPVC?
Kanye xa ubucinga ukuba uyayiqonda i-PVC xa ithelekiswa ne-UPVC, ubona igama elithi “PVC-U” kuxwebhu lobugcisa. Eli gama litsha longeza olunye udidi lokudideka, likwenza ungaqinisekanga ngokuqonda kwakho.
Akukho mahluko konke konke. I-PVC-U yenye nje indlela yokubhala i-uPVC. Igama elithi “-U” likwamele i-unplasticized. Liyindlela yokubiza amagama edla ngokubonwa kwimigangatho yaseYurophu okanye yamazwe ngamazwe (njenge-DIN okanye i-ISO).
Cinga nje ngokuthi “iidola ezili-100” xa kuthelekiswa “needola ezili-100.” La magama ahlukeneyo athetha into efanayo. Kwihlabathi leeplastiki, iindawo ezahlukeneyo ziphuhlise iindlela ezahlukeneyo zokulebhelisha ezi zinto. EMntla Melika, igama elithi “PVC” ligama eliqhelekileyo leepayipi eziqinileyo, kwaye igama elithi “UPVC” ngamanye amaxesha lisetyenziswa ukucacisa. EYurophu naphantsi kwemigangatho yamazwe ngamazwe, igama elithi “PVC-U” ligama lobunjineli elisemthethweni ngakumbi lokuchaza “olungafakwanga iplastiki.” Kumthengi onjengoBudi, eli ligama elibalulekileyo kwiqela lakhe. Xa bebona ithenda yaseYurophu echaza iivalvu zePVC-U, bayazi ngokuzithemba ukuba iivalvu zethu zePVC ezisemgangathweni ziyahlangabezana ngokugqibeleleyo nemfuneko. Konke kuxhomekeke kwizinto ezifanayo: ipolymer yevinyl eqinileyo, eqinileyo, engafakwanga iplastiki efanelekileyo kwiivalvu zebhola. Musa ukubanjwa ziileta; gxila kwiimpawu zezinto kunye nemigangatho yokusebenza kwazo.
Isiphelo
I-PVC, i-UPVC, kunye ne-PVC-U zonke zibhekisa kwizinto ezifanayo eziqinileyo nezingenaplastiki ezifanelekileyo kwiivalvu zamanzi abandayo. Umahluko wamagama ziindlela zengingqi okanye zembali kuphela.
Ixesha leposi: Julayi-31-2025
