Kufuneka ukhethe ivalve, kodwa iinketho zobhedu kunye nePVC zinezikhewu ezinkulu zexabiso. Ukukhetha engalunganga kunokukhokelela kumhlwa, ukuvuza, okanye ukuchitha imali kakhulu.
Umahluko ophambili zizinto eziphathekayo: I-PVC yiplastiki ekhaphukhaphu engakhuselekanga ngokupheleleyo kumhlwa kwaye ilungele amanzi abandayo. I-Brass yintsimbi enzima, eyomeleleyo ekwazi ukumelana namaqondo obushushu aphezulu kunye noxinzelelo kodwa inokugqwala ngokuhamba kwexesha.
Lo ngowona mbuzo uqhelekileyo endiwufumanayo. Bendiyixoxa noBudi, umphathi wokuthenga endisebenza naye eIndonesia. Kufuneka anike iqela lakhe leentengiso ezicacileyo, iimpendulo ezilula kubathengi babo, abasuka kumafama ukuya kubachwethezi bemibhobho yamanzi ukuya kubakhi. Abameli bakhe ababalaseleyo abathengisi nje iinxalenye; basombulula iingxaki. Kwaye inyathelo lokuqala lokusombulula ingxaki kukuqonda umahluko osisiseko phakathi kwezixhobo. Xa kuziwa kubhedu ngokuchasene ne-PVC, umahluko mkhulu, kwaye ukukhetha okulungileyo kubaluleke kakhulu kwinkqubo ekhuselekileyo, ehlala ixesha elide. Makhe sichaze kanye oko kufuneka ukwazi.
Yeyiphi engcono ibhedu okanye iivalvu zebhola zePVC?
Ujonge iivalvu ezimbini, enye yiplastiki etshiphu kwaye enye yintsimbi ebiza kakhulu. Ngaba intsimbi ixabisa ngokwenene imali eyongezelelweyo? Ukhetho olungalunganga lunokuba yimpazamo ebiza kakhulu.
Akukho nanye imathiriyeli engcono jikelele. I-PVC lolona khetho lungcono kwiimeko-bume ezonakalisayo kunye nazo zonke izicelo ezisemgangathweni zamanzi abandayo. I-Brass ingcono kubushushu obuphezulu, uxinzelelo oluphezulu, kwaye xa amandla omzimba ebaluleke kakhulu.
Umbuzo othi "ngcono" uhlala uhla kumsebenzi othile. Kubathengi abaninzi beBudi abakha iifama zeaquaculture ngaselunxwemeni, iPVC iphezulu kakhulu. Umoya onetyuwa kunye namanzi ziya konakalisa iivalvu zobhedu, zibangele ukuba zibambe okanye zivuze kwiminyaka embalwa. YethuIivalvu zePVCazichatshazelwa ngokupheleleyo yityuwa kwaye ziya kuhlala amashumi eminyaka. Nangona kunjalo, ukuba umthengi uyiplumber efakela isifudumezi samanzi ashushu, i-PVC ayikhethi. Yayiza kuthamba ize isilele. Kwimeko apho, ubhedu lukhetho oluchanekileyo kuphela ngenxa yokunyamezela ukushisa okukhulu. I-PVC iphinda ikhuseleke kwi-dezincification, inkqubo apho iintlobo ezithile zamanzi zinokukhupha i-zinc kubhedu, iyenze ibe brittle. Kwimisebenzi emininzi yamanzi abandayo, i-PVC inikezela ngokuthembeka kwexesha elide kunye nexabiso.
IPVC vs. Brass: Yeyiphi eNgcono?
| Uphawu | IPVC ingcono ku... | Ubhedu lungcono ku... |
|---|---|---|
| Ubushushu | Iinkqubo zaManzi abandayo (< 60°C / 140°F) | Amanzi ashushu kunye neeNkqubo zoMphunga |
| Ukonakala | Amanzi aneTyuwa, izichumisi, amachiza athambileyo | Amanzi aselwayo ane-pH elungeleleneyo |
| Uxinzelelo | Uxinzelelo lwaManzi olusemgangathweni (ukuya kwi-150 PSI) | Umoya woxinzelelo oluphezulu okanye ulwelo |
| Iindleko | IiProjekthi ezinkulu eziBalulekileyo, iMisebenzi eThatha uHlahlo-lwabiwo-mali | Izicelo ezifuna amandla aphezulu |
Yeyiphi eyona nto ingcono yobhedu okanye iivalvu zeenyawo zePVC?
Impompo yakho iqhubeka nokuphulukana nobukhulu bayo, ikunyanzela ukuba uyiqale ngokutsha rhoqo. Udinga ivalve yonyawo engayi kusilela, kodwa iya kuba ngaphantsi kwamanzi kwaye ingabonakali.
Kuninzi lwezicelo zempompo zamanzi, ivalve yonyawo lwePVC ingcono kakhulu. Ikhaphukhaphu, enciphisa ukunyanzeliswa kombhobho, kwaye ngokungafaniyo nobhedu, ikhuselekile ngokupheleleyo kwi-rust kunye ne-corrosion eyenza ukusilela kwevalve yeenyawo ezininzi.
Ivalve yonyawo iphila ubomi obunzima. Ihlala phantsi kwequla okanye itanki, ihlale iphantsi kwamanzi. Oku kwenza umhlwa utshaba lwayo lokuqala. Ngelixa ubhedu lubonakala luqinile, oku kuntywiliselwa rhoqo kulapho kusemngciphekweni kakhulu. Ekuhambeni kwexesha, amanzi aya konakalisa isinyithi, ingakumbi isiphethu esithambileyo sangaphakathi okanye isixhobo sehenjisi, nto leyo ebangela ukuba ibambe ivuleke okanye ivalwe. Ivalve mhlawumbi iyasilela ukubamba iprimiyamu okanye inqanda amanzi ukuba angaphumi kwaphela. Ngenxa yokuba iPVC yiplastiki, ayinakukwazi ukugqwala. Iinxalenye zangaphakathi zeevalvu zethu zeenyawo zePntek nazo zenziwe ngezinto ezingaboliyo, ukuze zihlale phantsi kwamanzi iminyaka kwaye zisasebenza ngokugqibeleleyo. Enye inzuzo enkulu bubunzima. Ivalve yonyawo lobhedu olunzima lubeka uxinzelelo olukhulu kumbhobho wokufunxa, okunokubangela ukuba ugobe okanye wophuke. IkhaphukhaphuIvalve yonyawo lwePVCkulula kakhulu ukuyifaka kunye nenkxaso.
Yintoni ivalve yebhola yePVC esetyenziselwa ntoni?
Uneprojekthi enemigca yamanzi emininzi. Udinga indlela efikelelekayo kunye nethembekileyo yokulawula ukuhamba kuyo nganye ngaphandle kokukhathazeka malunga neengxaki ezizayo ezivela kumhlwa okanye ukubola.
Ivalve yebhola yePVC isetyenziselwa ukubonelela ngolawulo olukhawulezayo lokuvula/ukuvala kwiinkqubo zamanzi abandayo. Lukhetho olukhethwayo lokunkcenkceshela, amadama okuqubha, i-aquaculture, kunye nemibhobho yamanzi ngokubanzi apho ixabiso layo eliphantsi kunye nobume bokuthintela ukuhlwa bubaluleke kakhulu.
Makhe sijonge imisebenzi ethile apho iPVC igqwesa. Kubaukunkcenkceshela kunye nokulima, ezi zivalo zigqibelele. Zinokungcwatywa emhlabeni okanye zisetyenziswe kunye nemigca yesichumisi ngaphandle komngcipheko wokubola kumanzi okanye iikhemikhali. Kubaamadama okuqubha kunye neespa, PVC imibhobho umgangatho ishishini ngesizathu. Ayichatshazelwa ngokupheleleyo yiklorine, ityuwa, kunye nezinye iikhemikhali zasechibini ezinokutshabalalisa ngokukhawuleza amacandelo esinyithi. Ndihlala ndimxelela uBudi ukubaukulima emanziniimakethi ifanelekile. Amafama eentlanzi adinga ulawulo lwamanzi oluchanekileyo, kwaye akanakuba nasiphi na isinyithi esiphumela emanzini kwaye sonakalise isitokhwe sabo. I-PVC ayisebenzi, ikhuselekile, kwaye ithembekile. Ekugqibeleni, kuwo nawuphi na umsebenzi oqhelekileyo wamanzi abandayo, njenge-shutoff eyintloko yenkqubo yokutshiza okanye i-drain elula, i-valve yebhola ye-PVC ibonelela ngexabiso eliphantsi, isisombululo somlilo kunye nokulibala owaziyo ukuba uya kusebenza xa ufuna.
Isetyenziselwa ntoni ivalve yebhola yobhedu?
Ufaka imibhobho yamanzi ashushu okanye umoya oxinanisiweyo. Ivalve yeplastiki eqhelekileyo inokuba yingozi kwaye inokugqabhuka. Ufuna ivalve eyomelele ngokwaneleyo emsebenzini.
A ivalve yebhola yobheduisetyenziselwa izicelo ezibango ezifuna ukunyamezela ubushushu obuphezulu, iireyithingi zoxinzelelo oluphezulu, kunye nokuqina okukhulu komzimba. Eyona nto ixhaphakileyo kukusetyenziswa kweendlela zamanzi ashushu, imibhobho yerhasi yendalo, kunye neenkqubo zomoya ezicinezelekileyo kwimizi-mveliso.
Ubhedu lihashe lomsebenzi lemisebenzi iPVC ayinakukwazi ukuyiphatha. Amandla ayo amakhulu aphambiliukumelana nobushushu. Ngelixa i-PVC ithambisa ngaphezu kwe-140 ° F (60 ° C), ubhedu lunokusingatha ngokulula amaqondo obushushu ngaphezu kwe-200 ° F (93 ° C), okwenza kube lolona khetho kuphela kwizifudumezi zamanzi ashushu kunye neminye imigca yamanzi ashushu. Inzuzo elandelayouxinzelelo. Ivalve yebhola yePVC eqhelekileyo inikwe umlinganiselo we-150 PSI. Iivalvu ezininzi zebhola zobhedu zithelekelwe i-600 PSI okanye ngaphezulu, nto leyo ezenza zibaluleke kakhulu kwiinkqubo zoxinzelelo oluphezulu.imigca yomoya ecinezelweyo. Ekugqibeleni, kukhoamandla ezinto eziphathekayo. Kwimibhobho yamanziigesi yendalo, iikhowudi zokwakha zihlala zifuna iivalve zetsimbi njengobhedu. Kwimeko yomlilo, ivalve yeplastiki iya kunyibilika kwaye ikhuphe igesi, ngelixa ivalve yobhedu ihlala injalo. Kuyo nayiphi na isicelo apho ukushisa, uxinzelelo oluphezulu, okanye ukhuseleko lomlilo luyinkxalabo, ubhedu lukhetho oluchanekileyo kunye noluchwephesha kuphela.
Ukuqukumbela
Ukhetho phakathi kwePVC kunye nobhedu malunga nesicelo. Khetha i-PVC ngenxa yokunganyangeki kwayo kwi-corrosion kumanzi abandayo kwaye ukhethe ubhedu ngokomelela kwayo ngokuchasene nobushushu kunye noxinzelelo oluphezulu.
Ixesha lokuposa: Jul-18-2025
