Ufake i-valve entsha yebhola ye-PVC futhi ulindele ukuthi isebenze iminyaka. Kodwa ukwehluleka kungazelelwe kungabangela isikhukhula, kulimaze amathuluzi, futhi kuvalwe imisebenzi.

Ikhwalithi ephezuluI-valve yebhola ye-PVCingahlala iminyaka engama-20 ngaphansi kwezimo ezifanele. Nokho, ukuphila kwayo kwangempela kunqunywa izici ezifana nokuchayeka kwe-UV, ukuthintana namakhemikhali, izinga lokushisa lamanzi, ukucindezela kwesistimu, nokuthi isetshenziswa kangaki.

Leso sibalo seminyaka engama-20 siyisiqalo, akusona isiqinisekiso. Impendulo yangempela ithi "kuya ngokuthi." Bengikhuluma ngalokhu noBudi, umphathi wokuthenga engisebenza naye e-Indonesia. Ubona i-spectrum egcwele. Amanye amakhasimende akhe anamavalvu ethu asebenza kahle ezinhlelweni zezolimo ngemuva kweminyaka eyi-15. Abanye, ngeshwa, baye baba nama-valve ehluleka eminyakeni emibili. Umehluko akuwona neze ivalvu ngokwayo, kodwa indawo ehlala kuyo. Ukuqonda lezi zici zemvelo kuwukuphela kwendlela yokubikezela ukuthi ivalvu yakho izohlala isikhathi esingakanani futhi uqiniseke ukuthi ifinyelela amandla ayo aphelele.

Ingakanani iminyaka yokuphila ye-valve yebhola ye-PVC?

Ufuna inombolo elula yohlelo lwakho lwephrojekthi. Kodwa ukusekela umugqa wakho wesikhathi kanye nesabelomali ekuqageleni kuyingozi, ikakhulukazi uma i-valve ihluleka isikhathi eside ngaphambi kokuba uyilindele.

Isikhathi sokuphila se-valve yebhola ye-PVC sisukela eminyakeni embalwa kuya ngaphezu kwamashumi amabili eminyaka. Lokhu akulungisiwe. Ukuphila kokugcina kuncike ngokuphelele ezimweni zayo zokusebenza kanye nekhwalithi yezinto zayo.

Cabanga ngokuphila kwe-valve njengethangi eligcwele legesi. Uqala ngebanga leminyaka engama-20. Zonke izimo ezinzima obhekene nazo zisebenzisa lowo phethiloli ngokushesha. Izici ezinkulu imisebe ye-UV evela elangeni kanye nokusetshenziswa njalo. I-valve efakwe ngaphandle ngaphandle kokuvikela izoba brittle njengobaImisebe ye-UV iphula ipulasitiki ye-PVC. Ngemva kweminyaka embalwa, yayingase ibe ntekenteke kangangokuthi ukungqongqoza nje kungase kuyiphihlize. Ivalvu efektri evulwa futhi ivalwe izikhathi ezingamakhulu ngosuku izoguga izigxivizo zayo zangaphakathi ngokushesha kakhulu kunokuvalwa kwelayini elikhulu elivalwa kabili kuphela ngonyaka. Amazinga okushisa aphezulu, ngisho nalawo angaphansi komkhawulo osemthethweni ongu-60°C, asazofinyeza ukuphila kwawo ngokuhamba kwesikhathi uma kuqhathaniswa nevalvu endaweni epholile, emnyama. Ukuphila isikhathi eside kwangempela kuvela ekufaniseni ai-valve yekhwalithiendaweni ethambile.

Amavalvu ebhola e-PVC ahlala isikhathi esingakanani?

Uzwile ukuthi zingahlala amashumi eminyaka. Kodwa uke wawabona amanye aqhekekile futhi aphuzi ngemva kwamasizini ambalwa nje. Lokhu kwenza kube nzima ukubathemba.

Endaweni evikelekile, enengcindezi ephansi njengolayini wamapayipi wasendlini, i-valve yebhola ye-PVC ingahlala kalula iminyaka engaphezu kwengu-20. Kodwa-ke, lapho kuvezwa elangeni eliqondile kanye nokusetshenziswa okuphezulu, impilo yayo yokusebenza ingancishiswa ibe iminyaka emi-3-5 kuphela.

Lokhu kuqhathanisa kuyinto engixoxa ngayo noBudi ngaso sonke isikhathi. Uneklayenti elilodwa, umlimi, owafaka amavalvu ethu endlini yephampu ebiyelwe yesistimu yakhe yokunisela eminyakeni engu-15 edlule. Avikelekile elangeni nasemoyeni, futhi asebenza kahle kuze kube namuhla. Unelinye iklayenti elifaka amapayipi amanzi kumachibi ophahleni. Amaphrojekthi akhe okuqala asebenzisa ama-valve angavikelekile. Elangeni elishubile lase-Indonesia, lawo ma-valve aba brittle futhi aqala ukungasebenzi phakathi neminyaka emine. Kwakuyivalvu yekhwalithi ephezulu efanayo ncamashi. Umehluko kuphela kwakuyindawo ezungezile. Lokhu kukhombisa ukuthi umbuzo awugcini nje ngokuthi “I-valve ihlala isikhathi esingakanani?” kodwa “Kuyoze kube ninikule ndawo ethile?” Ukuvikela i-valve ye-PVC esitheni sayo esikhulu, ilanga, into eyodwa ebaluleke kakhulu ongayenza ukuze uqinisekise ukuthi ifinyelela ubude bayo besikhathi esiphezuluupende we-latexnoma aibhokisi le-valveangangeza iminyaka yokuphila.

Athembeke kangakanani ama-valve ebhola e-PVC?

I-PVC iyipulasitiki nje, futhi ingazizwa iqinile kunensimbi. Ukhathazeka ngokuthi ingase iqhekeke noma ivuze ngaphansi kwengcindezi yomhlaba wangempela, iyenze ibonakale ingathembeki kangako kunevalvu yethusi esindayo.

Amavalvu ebhola ekhwalithi ephezulu e-PVC athembeke ngokwedlulele ezinhlelweni zawo ezihlosiwe. Ukwakhiwa kwazo kwepulasitiki kusho ukuthi azivikeleki ngokuphelele ekugqwaleni nakuma-mineral buildup okwenza ama-valve ensimbi ahluleke noma abambe ngokuhamba kwesikhathi.

Ukwethenjelwa kungaphezu nje kwamandla anonya; imayelana nokusebenza okungaguquki. I-valve yensimbi ibonakala iqinile, kodwa ezinhlelweni eziningi zamanzi, ukwethembeka kwayo empeleni kuncipha ngokuhamba kwesikhathi. Amaminerali asemanzini, noma amakhemikhali afana ne-chlorine, angabangela ukugqwala kanye nesikali sakhe ngaphakathi. Lokhu kwenza i-valve iqine futhi kube nzima ukuyijika. Ekugcineni, ingabamba ngokuphelele, iyenze ingabi nalusizo esimweni esiphuthumayo. Amavalvu e-PVC awanayo le nkinga. Ziyakwazi ukungena emanzini emanzini kanye nezithasiselo ezivame kakhulu. Azikwazi ukugqwala noma ukugqwala. Ingaphezulu langaphakathi lihlala libushelelezi, futhi ibhola liyaqhubeka nokujika kalula, ngisho nangemva kweminyaka eyishumi yesevisi. Lokhu ukwethembeka kweqiniso engikhuluma ngakho namakhasimende kaBudi. Kunoma isiphi isicelo samanzi abandayo, kusukela emachibini kuya ekucheleleni kuya ekutshalweni kwezilwane zasemanzini, ivalvu ye-PVC inikeza izinga lesikhathi eside, ukwethembeka okubikezelwe ukuthi insimbi ngokuvamile ayikwazi ukufana ngoba ngeke ibambeke.

Ivalve ye-PVC ihlala isikhathi esingakanani?

I-valve yakho iyeke ukusebenza ngendlela efanele. Uyazibuza ukuthi ivele yaguga yini ngenxa yokuguga, noma kukhona okudale ukuthi ihluleke ukuze ukwazi ukuyivimba ukuthi ingenzeki futhi.

Impilo yevalvu ye-PVC iyaphela lapho ingxenye ebalulekile yehluleka. Lokhu cishe kubangelwa enye yezinto ezintathu: izimpawu zangaphakathi ezigugile, ukuwohloka kwe-UV okwenza umzimba ube brittle, noma ukulimala ngokomzimba ngenxa yokuqina ngokweqile.

Ama-valve awagcini nje “ukufa ngenxa yokuguga”; ingxenye ethile iyakhipha. Ukwehluleka kokuqala nokuvame kakhulu yizimpawu. Amaringi e-PTFE amhlophe avala ibhola kanye namaringi e-EPDM O-omnyama esiqwini ayaguga ezinkulungwaneni zemijikelezo yokuvula nokuvala. Lokhu kuholela ekuvuzeni okuncane, kungaba ngepayipi noma ngaphandle kwesibambo. Lokhu ukuguga okuvamile. Ukwehluleka kwesibili umzimba ngokwawo. Ukukhanya kwe-UV kwenza i-PVC ibe brittle ngokuhamba kweminyaka. I-valve esebenza kahle ingaqhekeka kungazelelwe isando samanzi noma umthelela omncane. Ukwehluleka kwesithathu okuvamile kwenzeka phakathi nokufakwa. Abantu bavame ukusebenzisa amandla amaningi kakhulu noma itheyiphu yochungechunge lapho bexhuma ama-valve anentambo. Lokhu kudala ingcindezi enkulu ekugcineni kwevalvu wesifazane, okubangela ukuqhekeka kwezinwele okungase kuhluleke amasonto noma izinyanga kamuva. Ukuqonda lezi zindlela zokwehluleka kukhombisa ukuthi ubude besikhathi se-valve yinto ongayilawula futhi uyinwebe ngenkuthalo.

Isiphetho

I-valve yekhwalithi ye-PVC ingahlala amashumi eminyaka. Ukuphila kwayo kuncike kancane esikhathini nangaphezulu ekusetshenzisweni okufanele, ukuvikela ekukhanyeni kwe-UV, kanye nedizayini yesistimu efanele yokusetshenziswa kwayo.