Kuya kufuneka ukhethe ivalvu, kodwa ukhetho lwebrass kunye nePVC luneziphene ezinkulu zamaxabiso. Ukukhetha olungalunganga kunokukhokelela ekugqwaleni, ekuvuzeni, okanye ekuchitheni imali eninzi kakhulu.

Umahluko ophambili yile nto yenziweyo: I-PVC yiplastiki ekhaphukhaphu engenakuthintelwa ngumhlwa kwaye ifanelekile emanzini abandayo. I-Brass yintsimbi enzima, eqinileyo enokumelana nobushushu obuphezulu kunye noxinzelelo kodwa inokubola ngokuhamba kwexesha.

Mhlawumbi lo ngumbuzo oqhelekileyo endiwubuzayo. Bendisathetha ngalo noBudi, umphathi wokuthenga endisebenza naye eIndonesia. Kufuneka anike iqela lakhe lokuthengisa iimpendulo ezicacileyo nezilula kubathengi babo, abaqala kubalimi ukuya kubalungisi bemibhobho ukuya kubakhi bedama lokubhukuda. Amagosa akhe abalaseleyo awathengisi nje kuphela iindawo; asombulula iingxaki. Kwaye inyathelo lokuqala lokusombulula ingxaki kukuqonda umahluko osisiseko phakathi kwezixhobo. Xa kufikwa kwi-bronze xa kuthelekiswa ne-PVC, umahluko mkhulu kakhulu, kwaye ukukhetha ochanekileyo kubalulekile kwinkqubo ekhuselekileyo nehlala ixesha elide. Makhe sihlalutye kanye into ekufuneka uyazi.

Yeyiphi ivalvu yebhola yebrass okanye yePVC engcono?

Ujonge iivalvu ezimbini, enye yiplastiki engabizi kakhulu kwaye enye yintsimbi ebiza kakhulu. Ngaba le yesinyithi ixabisa imali eyongezelelweyo? Ukukhetha okungalunganga kunokuba yimpazamo ebiza kakhulu.

Akukho nanye kwezi zinto ingcono kakhulu kwihlabathi liphela. I-PVC yeyona ndlela ingcono kwiindawo ezingcolisayo kunye nazo zonke iindlela ezisetyenziswa ngamanzi abandayo. I-brass ingcono kumaqondo obushushu aphezulu, uxinzelelo oluphezulu, kwaye xa amandla omzimba ebaluleke kakhulu.

Umbuzo wokuba yeyiphi "engcono" uhlala uxhomekeke kumsebenzi othile. Kwabaninzi babathengi baseBudi abakha iifama zezilwanyana zasemanzini elunxwemeni, i-PVC ingcono kakhulu. Umoya namanzi anetyuwa aya kuzidla iivalvu zobhedu, nto leyo ebangela ukuba zibambeke okanye zivuze emva kweminyaka embalwa.Iivalvu zePVCazichaphazeleki kwaphela yityuwa kwaye ziya kuhlala amashumi eminyaka. Nangona kunjalo, ukuba umthengi ungumplamba ofaka isifudumezi samanzi ashushu, i-PVC ayilokhetho. Ingathamba ize ingasebenzi. Kwimeko enjalo, ibrass yeyona ndlela ichanekileyo ngenxa yokunyamezela kwayo ubushushu obuphezulu. I-PVC ikwakhuselekile ekususweni kwe-zinc, inkqubo apho iintlobo ezithile zamanzi zinokukhupha i-zinc kwibrass, iyenze ibe buthathaka. Kwiimisebenzi ezininzi zamanzi abandayo, i-PVC inika ukuthembeka okungcono kunye nexabiso elihle ixesha elide.

I-PVC vs. I-Brass: Yeyiphi engcono?

Yeyiphi ivalvu yeenyawo yebrass okanye yePVC engcono?

Ipompo yakho ihlala ilahlekelwa yiprime yayo, nto leyo ekunyanzela ukuba uyiqalise kwakhona rhoqo. Udinga ivalvu yeenyawo engayi kusilela, kodwa iya kuba phantsi kwamanzi kwaye ingabonakali.

Kwiinkqubo ezininzi zokufaka amanzi, ivalvu yeenyawo yePVC ingcono kakhulu. Ilula kakhulu, nto leyo enciphisa uxinzelelo kumbhobho, kwaye ngokungafaniyo nethusi, ayichaphazeleki ngokupheleleyo kukugqwala kunye nokubola okubangela ukungasebenzi kakuhle kwevalvu yeenyawo.

Ivalvu yeenyawo iphila ubomi obunzima. Ihlala ezantsi kwequla okanye itanki, isoloko intywiliselwa emanzini. Oku kwenza ukugqwala kube lutshaba olukhulu. Nangona ubhedu lubonakala luqinile, ukuntywiliselwa rhoqo kulapho lusengozini khona. Ekuhambeni kwexesha, amanzi aya kugqwala isinyithi, ingakumbi intwasahlobo yangaphakathi ethambileyo okanye indlela yokubopha, okubangela ukuba ivuleke okanye ivalwe. Ivalvu ayibambi kakuhle okanye iyeke amanzi ukuba ahambe kwaphela. Ngenxa yokuba iPVC yiplastiki, ayinakugqwala. Iindawo zangaphakathi zeevalvu zethu zeenyawo zePntek nazo zenziwe ngezinto ezingagqwaliyo, ngoko ke zinokuhlala phantsi kwamanzi iminyaka emininzi kwaye zisebenze ngokugqibeleleyo. Enye inzuzo enkulu bubunzima. Ivalvu yeenyawo zentsimbi enzima ibeka uxinzelelo olukhulu kumbhobho wokufunxa, okunokubangela ukuba igobe okanye iqhekeke. IkhaphukhaphuIvalvu yeenyawo zePVCKulula kakhulu ukuyifaka nokuyixhasa.

Isetyenziselwa ntoni ivalvu yebhola yePVC?

Uneprojekthi enemigca yamanzi emininzi. Udinga indlela efikelelekayo nethembekileyo yokulawula ukuhamba kwamanzi kuyo nganye ngaphandle kokukhathazeka ngeengxaki ezizayo ezivela kumhlwa okanye ukubola.

Ivalvu yebhola yePVC isetyenziselwa ukubonelela ngolawulo olukhawulezayo lokuvula/ukucima kwiinkqubo zamanzi abandayo. Yindlela efanelekileyo yokunkcenkceshela, amachibi okudada, ukulima amachibi, kunye nemibhobho ngokubanzi apho ixabiso layo eliphantsi kunye nokumelana nokugqwala kubaluleke kakhulu.

Makhe sijonge imisebenzi ethile apho i-PVC igqwesa khona.ukunkcenkceshela nokulima, ezi valve zigqibelele. Zingagqunywa emhlabeni okanye zisetyenziswe kunye nemiqolo yezichumisi ngaphandle komngcipheko wokugqwala ngenxa yokufuma okanye iikhemikhali.amadama okudada kunye neespa, Iipayipi zePVC ziyindlela eqhelekileyo kushishino ngesizathu esithile. Ayichaphazeleki kwaphela yichlorine, ityuwa, kunye nezinye iikhemikhali zedama elinokutshabalalisa ngokukhawuleza izinto zesinyithi. Ndisoloko ndixelela uBudi ukubaukulima iintlanziImarike ifanelekile. Abafuyi beentlanzi bafuna ulawulo oluchanekileyo lwamanzi, kwaye abanakuba nentsimbi ephuma emanzini ize yonakalise imfuyo yabo. I-PVC ayisebenzi, ikhuselekile, kwaye ithembekile. Okokugqibela, kuyo nayiphi na imisebenzi yamanzi abandayo ngokubanzi, njengokuvala okuphambili kwenkqubo yokutshiza okanye umsele olula, ivalvu yebhola yePVC inika isisombululo esingabizi kakhulu, esitshisayo kwaye ulibale osaziyo ukuba siya kusebenza xa usidinga.

Isetyenziselwa ntoni ivalvu yebhola yobhedu?

Ufaka intambo yamanzi ashushu okanye umoya ocinezelweyo. Ivalvu yeplastiki eqhelekileyo ingaba yingozi kwaye ingaqhekeka. Udinga ivalvu enamandla ngokwaneleyo kulo msebenzi.

A ivalvu yebhola yobheduIsetyenziselwa usetyenziso olunzima olufuna ukunyamezela ubushushu obuphezulu, ukulinganiswa koxinzelelo oluphezulu, kunye nokuqina komzimba okukhulu. Ukusetyenziswa kwayo okuqhelekileyo kukusebenzisa imigca yamanzi ashushu, imibhobho yegesi yendalo, kunye neenkqubo zomoya ocinezelweyo kwimizi-mveliso.

I-Brass yeyona nto inzima kakhulu kwimisebenzi engenakukwazi ukuyiphatha i-PVC. Amandla ayo aphambili ngamandlaukumelana nobushushuNangona i-PVC ithambisa ngaphezu kwe-140°F (60°C), ibrass inokumelana ngokulula nobushushu obungaphezulu kwe-200°F (93°C), nto leyo eyenza ukuba ibe lolona khetho kuphela lwezifudumezi zamanzi ashushu kunye nezinye iintambo zolwelo olushushu. Inzuzo elandelayo yile:uxinzeleloIvalvu yebhola yePVC eqhelekileyo idla ngokulinganiselwa kwi-150 PSI. Iivalvu ezininzi zebhola yobhedu zilinganiswa kwi-600 PSI nangaphezulu, nto leyo eyenza ukuba zibe yimfuneko kwiinkqubo zoxinzelelo oluphezulu ezifanaimigca yomoya ecinezelweyoOkokugqibela, kukhoamandla ezinto ezibonakalayoYemibhobho yamanziigesi yendalo, imithetho yokwakha isoloko ifuna iivalvu zesinyithi ezifana nobhedu. Xa kutsha, ivalvu yeplastiki iya kunyibilika ikhuphe igesi, ngelixa ivalvu yobhedu ihlala injalo. Nakuphi na ukusetyenziswa apho ubushushu, uxinzelelo oluphezulu, okanye ukhuseleko lomlilo luyinkxalabo, ibrass lukhetho olufanelekileyo nolukuphela kobuchwephesha.

Isiphelo

Ukukhetha phakathi kwePVC kunye nebronze kuxhomekeke ekusetyenzisweni kwayo. Khetha iPVC ngenxa yokumelana kwayo nokugqwala emanzini abandayo kwaye ukhethe ibronze ngenxa yokuqina kwayo kubushushu kunye noxinzelelo oluphezulu.