Ufake ivalvu entsha yebhola yePVC kwaye ulindele ukuba isebenze iminyaka. Kodwa ukusilela ngequbuliso kunokubangela izikhukula, konakalise izixhobo, kwaye kumise imisebenzi.

Umgangatho ophezuluIvalvu yebhola yePVCinokuhlala iminyaka engama-20 kwiimeko ezifanelekileyo. Nangona kunjalo, ubomi bayo bokwenyani buxhomekeke kwizinto ezifana nokuvezwa yi-UV, ukudibana kweekhemikhali, ubushushu bamanzi, uxinzelelo lwenkqubo, kunye nokuba isetyenziswa kangaphi.

Elo nani leminyaka engama-20 lisiqalo, hayi isiqinisekiso. Impendulo yokwenyani ithi “kuxhomekeke.” Bendithetha ngale nto noBudi, umphathi wokuthenga endisebenza naye eIndonesia. Ubona uluhlu olupheleleyo. Abanye babathengi bakhe baneevalvu zethu ezisebenza ngokugqibeleleyo kwiinkqubo zezolimo emva kweminyaka eli-15. Abanye, ngelishwa, baye baphulukana neevalvu ngaphantsi kweminyaka emibini. Umahluko awukho kwivalvu ngokwayo, kodwa yindawo ehlala kuyo. Ukuqonda ezi zinto zendalo yindlela ekuphela kwayo yokuqikelela ukuba ivalvu yakho iya kuhlala ixesha elingakanani kwaye uqinisekise ukuba ifikelela kwisakhono sayo esipheleleyo.

Ingakanani ixesha lokuphila kwevalvu yebhola yePVC?

Ufuna inombolo elula yesicwangciso sakho seprojekthi. Kodwa ukusekela ixesha lakho kunye nohlahlo-lwabiwo mali kuqikelelo kuyingozi, ingakumbi ukuba ivalvu iyasilela kudala ngaphambi kokuba ulindele.

Ixesha lokuphila kwevalvu yebhola yePVC liqala kwiminyaka embalwa ukuya kwiminyaka engamashumi amabini. Oku akukamiselwanga. Ixesha lokugqibela lokuphila lixhomekeke ngokupheleleyo kwiimeko zokusebenza kwayo kunye nomgangatho wezinto zayo.

Cinga ngobomi bevalvu njengetanki epheleleyo yegesi. Uqala ngeminyaka engama-20. Yonke imeko enzima oyibeka kuyo isebenzisa loo mafutha ngokukhawuleza. Izinto eziphambili yimitha ye-UV evela elangeni kunye nokusetyenziswa rhoqo. Ivalvu efakwe ngaphandle ngaphandle kokhuseleko iya kuba buthathaka njengokoImitha ye-UV iphula iplastiki yePVCEmva kweminyaka embalwa, inokuba buthathaka kangangokuba ukungqongqoza nje kunokuyiqhekeza. Ivalvu kumzi-mveliso evulwa kwaye ivalwe izihlandlo ezingamakhulu ngemini iya kutshabalalisa izitywino zayo zangaphakathi ngokukhawuleza kakhulu kunokuvala umzila omkhulu ojikwa kabini ngonyaka. Amaqondo obushushu aphezulu, nokuba angaphantsi komda osemthethweni wama-60°C, aya kuqhubeka efinyeza ubomi bayo ngokuhamba kwexesha xa kuthelekiswa nevalvu kwindawo epholileyo nemnyama. Ubomi obude bokwenyani buvela ekufaniseni i-ivalvu esemgangathwenikwindawo ethambileyo.

Iivalvu zebhola zePVC zihlala ixesha elingakanani?

Uvile ukuba zinokuhlala amashumi eminyaka. Kodwa ukhe wabona ezinye eziqhekekileyo nezimthubi emva kwexesha elithile. Oku kwenza kube nzima ukuzithemba.

Kwimeko ekhuselekileyo nengenaxinzelelo luninzi njengomgca wokufaka amanzi ngaphakathi, ivalvu yebhola yePVC inokuhlala ixesha elide ngaphezu kweminyaka engama-20. Nangona kunjalo, xa ibekwe elangeni ngqo kwaye isetyenziswa kakhulu, ubomi bayo bokusebenza bunokuncipha bube yiminyaka emi-3-5 kuphela.

Lo mahluko yinto endiyixoxa noBudi ngalo lonke ixesha. Unomthengi omnye, umlimi, owafaka iivalvu zethu kwindlu yokumpompa evaliweyo yenkqubo yakhe yokunkcenkceshela kwiminyaka eli-15 eyadlulayo. Zikhuselekile elangeni nakwimozulu, kwaye zisebenza ngokugqibeleleyo nanamhlanje. Unomthengi omnye ofaka imibhobho yamanzi echibini lophahla. Iiprojekthi zakhe zokuqala zasebenzisa iivalvu ezingakhuselekanga. Kwilanga elinamandla lase-Indonesia, ezo valve zaba buthathaka zaza zaqala ukungasebenzi kwiminyaka emine. Yayiyivalvu efanayo yomgangatho ophezulu. Umahluko kuphela yayikukusingqongileyo. Oku kubonisa ukuba umbuzo awungowokuba “Ivalvu ihlala ixesha elingakanani?” kodwa “Iza kuhlala ixesha elingakanani?”kule ndawo ithile"Ukukhusela ivalvu yePVC kutshaba lwayo oluphambili, ilanga, yeyona nto ibalulekileyo onokuyenza ukuqinisekisa ukuba ifikelela kwixesha layo elide lobomi. Umbala olula weipeyinti yelatexokanyeibhokisi yevalvuinokongeza iminyaka yobomi.

Zithembeke kangakanani iivalvu zebhola zePVC?

I-PVC yiplastiki nje, kwaye ingavakala ngathi ayomelelanga njengentsimbi. Uxhalabile ukuba ingaqhekeka okanye ivuze phantsi koxinzelelo lokwenyani, nto leyo eyenza ibonakale ingathembekanga njengevalvu yobhedu enzima.

Iivalvu zebhola zePVC ezikumgangatho ophezulu zithembeke kakhulu kwiindlela ezicetywayo. Ukwakhiwa kwazo ngeplastiki kuthetha ukuba azinawo umhlwa kunye nokwakheka kweeminerali okubangela ukuba iivalvu zesinyithi zingasebenzi okanye zibambeke ngokuhamba kwexesha.

Ukuthembeka kungaphezulu nje kwamandla angaqhelekanga; kumalunga nokusebenza rhoqo. Ivalvu yesinyithi ibonakala iqinile, kodwa kwiinkqubo ezininzi zamanzi, ukuthembeka kwayo kuncipha ngokuhamba kwexesha. Iiminerali emanzini, okanye iikhemikhali ezifana ne-chlorine, zinokubangela ukugqwala kunye nokwakheka kobukhulu ngaphakathi. Oku kwenza ivalvu iqine kwaye kube nzima ukuyijika. Ekugqibeleni, inokubamba ngokupheleleyo, okwenza ingasebenzi kwimeko engxamisekileyo. Iivalvu zePVC azinalo eli ngxaki. Zingangenisi khemikhali emanzini kwaye zezona zongezo zixhaphakileyo. Azinakuba nomhlwa okanye zibole. Umphezulu wangaphakathi uhlala uthambile, kwaye ibhola iyaqhubeka nokujika ngokulula, nokuba emva kweminyaka elishumi yenkonzo. Olu luthembeko lokwenyani endithetha ngalo nabathengi bakaBudi. Ngalo naluphi na usetyenziso lwamanzi abandayo, ukusuka kumachibi ukuya kunkcenkceshelo ukuya ekukhuliseni amachibi, ivalvu yePVC inikezela ngenqanaba lokuthembeka kwexesha elide, eliqikelelwayo elinokuthi isinyithi singakwazi ukulilingana kuba asizukubamba.

Ivalvu yePVC ihlala ixesha elingakanani?

Ivalvu yakho iyekile ukusebenza kakuhle. Uzibuza ukuba ingaba igugile ngenxa yokwaluphala, okanye kukho into ethile ebangele ukuba ingasebenzi ukuze ukwazi ukuyithintela ukuba ingenzeki kwakhona.

Ubomi bevalvu yePVC buphela xa icandelo eliphambili lingaphumeleli. Oku kusoloko kungenxa yenye yezinto ezintathu: izitywino zangaphakathi ezigugileyo, ukonakala kwe-UV okwenza umzimba ube buthathaka, okanye umonakalo womzimba ngenxa yokuqina kakhulu.

Iivalvu azifi nje “ngokwaluphala”; inxalenye ethile iyaphela. Ukusilela kokuqala nokuqhelekileyo zizitywini. Iiringi ze-PTFE ezimhlophe ezivala ibhola kwaye iiringi ze-EPDM O ezimnyama kwisiqu ziyaguga ngenxa yamawaka emijikelo evulekileyo nevaliweyo. Oku kukhokelela ekuvuzeni okuncinci, nokuba kudlula kumbhobho okanye ngaphandle kwesiphatho. Oku kukuguga okuqhelekileyo. Ukusilela kwesibini kumzimba ngokwawo. Ukukhanya kwe-UV kwenza i-PVC ibe buthathaka ngokuhamba kweminyaka. Ivalvu esebenza kakuhle inokuqhekeka ngequbuliso kwihamile yamanzi okanye impembelelo encinci. Ukusilela kwesithathu okuqhelekileyo kwenzeka ngexesha lokufakwa. Abantu badla ngokusebenzisa amandla amaninzi okanye iteyiphu yentambo xa beqhagamshela iivalvu ezinentambo. Oku kudala uxinzelelo olukhulu kwisiphelo sevalvu esinentambo yesifazane, okubangela ukuqhekeka kweenwele okunokungaphumeleli kwiiveki okanye kwiinyanga kamva. Ukuqonda ezi ndlela zokusilela kubonisa ukuba ubomi bevalvu yinto onokuyilawula kwaye uyandise.

Isiphelo

Ivalvu yePVC esemgangathweni inokuhlala amashumi eminyaka. Ubomi bayo buxhomekeke kancinci kwixesha kodwa buxhomekeke kakhulu ekusetyenzisweni ngokufanelekileyo, ukhuseleko ekukhanyeni kwe-UV, kunye noyilo olufanelekileyo lwenkqubo yokusetyenziswa kwayo.