Ufake i-valve entsha yebhola ye-PVC futhi ulindele ukuthi isebenze iminyaka eminingi. Kodwa ukwehluleka okungazelelwe kungabangela izikhukhula, konakalise imishini, futhi kuvalwe ukusebenza.

Ikhwalithi ephezuluI-valve yebhola ye-PVCingahlala iminyaka efinyelela kwengu-20 ezimweni ezinhle. Kodwa-ke, isikhathi sayo sokuphila sinqunywa yizici ezifana nokuchayeka kwi-UV, ukuthintana kwamakhemikhali, izinga lokushisa kwamanzi, ingcindezi yesistimu, nokuthi isetshenziswa kangaki.

Leso sibalo seminyaka engu-20 siyindawo yokuqala, hhayi isiqinisekiso. Impendulo yangempela ithi “kuya ngokuthi kuncike kuphi.” Bengikhuluma ngalokhu noBudi, umphathi wokuthenga engisebenza naye e-Indonesia. Ubona ububanzi obuphelele. Amanye amakhasimende akhe anezivalo zethu ezisebenza kahle ezinhlelweni zezolimo ngemva kweminyaka engu-15. Abanye, ngeshwa, baye bahluleka ngaphansi kweminyaka emibili. Umehluko awulona neze ivalo ngokwalo, kodwa indawo ehlala kuyo. Ukuqonda lezi zici zemvelo kuyindlela kuphela yokubikezela ukuthi ivalvu yakho izohlala isikhathi esingakanani ngempela nokuqinisekisa ukuthi ifinyelela amandla ayo aphelele.

Iyini isikhathi sokuphila sevalvu yebhola le-PVC?

Ufuna inombolo elula yohlelo lwakho lwephrojekthi. Kodwa ukusekela isikhathi sakho kanye nesabelomali ekuqageleni kuyingozi, ikakhulukazi uma ivalvu yehluleka isikhathi eside ngaphambi kokuba ulindele.

Isikhathi sokuphila sevalvu yebhola le-PVC sisukela eminyakeni embalwa kuya eminyakeni engaphezu kwamashumi amabili. Lokhu akukaqinisekiswa. Isikhathi sokugcina sokuphila sincike ngokuphelele ezimweni zokusebenza kwayo kanye nekhwalithi yezinto zayo.

Cabanga ngokuphila kwevalvu njengethangi eligcwele igesi. Uqala ngebanga leminyaka engama-20. Noma yisiphi isimo esinzima osibeka kuso sisebenzisa lowo mafutha ngokushesha. Izici ezinkulu imisebe ye-UV evela elangeni kanye nokusetshenziswa njalo. Ivalvu efakwe ngaphandle ngaphandle kokuvikelwa izophuka njengobaImisebe ye-UV iphula ipulasitiki ye-PVCNgemva kweminyaka embalwa, ingaba buthakathaka kangangokuthi ukungqongqoza okulula kungayiphula. Ivalvu efektri evulwa futhi ivalwe izikhathi ezingamakhulu ngosuku izoguga izivalo zayo zangaphakathi ngokushesha kakhulu kunokuvala umugqa omkhulu ophendulwa kabili ngonyaka. Amazinga okushisa aphezulu, ngisho nalawo angaphansi komkhawulo osemthethweni wama-60°C, azoqhubeka nokunciphisa impilo yayo ngokuhamba kwesikhathi uma kuqhathaniswa nevalvu endaweni epholile, emnyama. Ukuphila isikhathi eside kwangempela kuvela ekufanisenii-valve yekhwalithiendaweni emnene.

Ama-valve ebhola le-PVC ahlala isikhathi esingakanani?

Uzwile ukuthi zingahlala amashumi eminyaka. Kodwa futhi ubone ezinye eziqhekekile futhi ziphuzi ngemva kwezinkathi ezimbalwa nje. Lokhu kwenza kube nzima ukuzethemba.

Endaweni evikelekile, engenangcindezi ephansi njengentambo yamapayipi yangaphakathi, ivalvu yebhola ye-PVC ingahlala iminyaka engaphezu kwengu-20. Kodwa-ke, uma ivezwa elangeni eliqondile futhi isetshenziswa kakhulu, impilo yayo yokusebenza ingancishiswa ibe yiminyaka emi-3-5 kuphela.

Lokhu kungafani yinto engixoxa ngayo noBudi ngaso sonke isikhathi. Uneklayenti elilodwa, umlimi, owafaka amavalvu ethu endlini yokupompa evaliwe yesistimu yakhe yokunisela eminyakeni eyi-15 eyedlule. Avikelwe elangeni nasesimo sezulu, futhi asebenza kahle kuze kube namuhla. Uneklayenti elinye elifaka amapayipi amachibi ophahla. Amaphrojekthi akhe okuqala asebenzisa amavalvu angavikelwe. Elangeni elinamandla lase-Indonesia, lawo mavalvu aba buthakathaka futhi aqala ukwehluleka phakathi neminyaka emine. Kwakuyivalvu efanayo yekhwalithi ephezulu. Umehluko kuphela kwakuyindawo ezungezile. Lokhu kukhombisa ukuthi umbuzo awukhona nje ukuthi “Ivalvu ihlala isikhathi esingakanani?” kodwa “Izohlala isikhathi esingakananikule ndawo ethile?” Ukuvikela ivalvu ye-PVC esitheni sayo esiyinhloko, ilanga, yinto ebaluleke kakhulu ongayenza ukuqinisekisa ukuthi ifinyelela isikhathi sayo sokuphila esiphezulu.upende we-latexnomaibhokisi le-valvekungangeza iminyaka yokuphila.

Ama-valve ebhola e-PVC athembeke kangakanani?

I-PVC imane nje iyipulasitiki, futhi ingazizwa ingaqinile njengensimbi. Ukhathazekile ngokuthi ingase iqhekeke noma ivuze ngaphansi kwengcindezi yangempela, okwenza ibonakale ingathembekile njengevalvu yethusi esindayo.

Amavalvu ebhola e-PVC asezingeni eliphezulu athembeke kakhulu ekusetshenzisweni kwawo okuhlosiwe. Ukwakhiwa kwawo kwepulasitiki kusho ukuthi awakwazi ukugqwala nokuqongelela kwamaminerali okubangela ukuthi amavalvu ensimbi ahluleke noma abambeke ngokuhamba kwesikhathi.

Ukuthembeka kungaphezu nje kwamandla aqinile; kumayelana nokusebenza njalo. Ivalvu yensimbi ibukeka iqinile, kodwa ezinhlelweni eziningi zamanzi, ukuthembeka kwayo kuncipha ngokuhamba kwesikhathi. Amaminerali emanzini, noma amakhemikhali afana ne-chlorine, angabangela ukugqwala kanye nokwakheka kwesikali ngaphakathi. Lokhu kwenza ivalvu iqine futhi kube nzima ukuyijika. Ekugcineni, ingabamba ngokuphelele, okwenza ingasebenzi esimweni esiphuthumayo. Amavalvu e-PVC awanalo le nkinga. Angangeni makhemikhali emanzini futhi anezithasiselo ezivame kakhulu. Awakwazi ukugqwala noma ukugqwala. Ubuso bangaphakathi buhlala bubushelelezi, futhi ibhola liyaqhubeka nokujika kalula, ngisho nangemva kweminyaka eyishumi yesevisi. Lokhu ukuthembeka kwangempela engikhuluma ngakho namakhasimende kaBudi. Kunoma yikuphi ukusetshenziswa kwamanzi abandayo, kusukela emachibini kuya ekuniseleni kuya ekufuyweni kwezinhlanzi, ivalvu ye-PVC inikeza izinga lokuthembeka kwesikhathi eside, okubikezelwayo insimbi evame ukungakwazi ukulifanisa ngoba ngeke ibambe.

Ivalvu ye-PVC ihlala isikhathi esingakanani?

Ivalvu yakho iyeke ukusebenza kahle. Uzibuza ukuthi ngabe igugile ngenxa yokuguga, noma ukuthi kukhona yini okubangele ukuthi yehluleke ukuze ukwazi ukuyivimbela ukuthi ingaphinde yenzeke.

Impilo yevalvu ye-PVC iyaphela lapho ingxenye ebalulekile yehluleka. Lokhu cishe njalo kungenxa yento eyodwa kwezithathu: izivalo zangaphakathi ezigugile, ukuwohloka kwe-UV okwenza umzimba uqhekeke, noma umonakalo ongokomzimba ngenxa yokuqina ngokweqile.

Amavalvu awagcini nje “ngokuguga”; ingxenye ethile iyaphela. Ukwehluleka kokuqala nokuvame kakhulu yizivalo. Amasongo e-PTFE amhlophe avala ibhola kanye namasongo e-EPDM amnyama esiqwini ayaguga ngenxa yemijikelezo eyizinkulungwane yokuvula nokuvala. Lokhu kuholela ekuvuvukeni okuncane, kungaba ngepayipi noma ngaphandle kwesibambo. Lokhu kungukuguguleka okuvamile. Ukwehluleka kwesibili umzimba ngokwawo. Ukukhanya kwe-UV kwenza i-PVC iqhekeke ngokuhamba kweminyaka. Ivalvu esebenza kahle ingaqhekeka ngokuzumayo kusuka ku-water hammer noma ngokushaya okuncane. Ukwehluleka kwesithathu okuvamile kwenzeka ngesikhathi sokufakwa. Abantu bavame ukusebenzisa amandla amaningi noma i-thread tape lapho bexhuma amavalvu anezintambo. Lokhu kudala ingcindezi enkulu ekugcineni kwe-valvu yesifazane enezintambo, okubangela ukuqhekeka kwezinwele okungase kuhluleke amasonto noma izinyanga kamuva. Ukuqonda lezi zindlela zokwehluleka kukhombisa ukuthi isikhathi sokuphila kwevalvu yinto ongayiphatha futhi uyinwebe ngenkuthalo.

Isiphetho

Ivalvu ye-PVC esezingeni eliphezulu ingahlala amashumi eminyaka. Isikhathi sayo sokuphila sincike kakhulu esikhathini kodwa sincike kakhulu ekusetshenzisweni okufanele, ekuvikelweni ekukhanyeni kwe-UV, kanye nomklamo wesistimu ofanele wokusetshenziswa kwayo.