Ufake ivalve entsha yePVC kwaye ulindele ukuba isebenze iminyaka. Kodwa ukusilela ngequbuliso kunokubangela umkhukula, konakalise izixhobo, kwaye kuvalwe imisebenzi.

Umgangatho ophezuluIvalve yebhola yePVCingahlala ukuya kutsho kwiminyaka engama-20 kwiimeko ezifanelekileyo. Nangona kunjalo, ubomi bayo bokwenyani bumiselwa yimiba efana nokuvezwa kwe-UV, ukunxibelelana neekhemikhali, ubushushu bamanzi, uxinzelelo lwenkqubo, kunye nokuba isetyenziswa kangaphi.

Elo nani leminyaka engama-20 lisiqalo, ayisosiqinisekiso. Impendulo yokwenyani ithi "kuxhomekeke." Bendithetha ngale nto noBudi, umphathi wokuthenga endisebenza naye eIndonesia. Ubona i-spectrum epheleleyo. Abanye babathengi bakhe baneevalvu zethu ezisebenza ngokugqibeleleyo kwiinkqubo zezolimo emva kweminyaka eli-15. Abanye, ngelishwa, baye baba ne-valve engaphumeleli kwiminyaka emibini. Umahluko asilovalvu ngokwayo, kodwa yindawo ehlala kuyo. Ukuqonda ezi meko zokusingqongileyo kuphela kwendlela yokuqikelela ukuba ivalve yakho iya kuhlala ixesha elingakanani kwaye uqiniseke ukuba ifikelela kwisakhono sayo esipheleleyo.

Yintoni ubude bobomi bevalve yebhola yePVC?

Ufuna inombolo elula yesicwangciso sakho seprojekthi. Kodwa ukusekela umda wexesha kunye nohlahlo lwabiwo-mali kuqikelelo kuyingozi, ngakumbi ukuba ivalve isilela ixesha elide ngaphambi kokuba uyilindele.

Ubomi obulindelekileyo bevalve yebhola yePVC busukela kwiminyaka embalwa ukuya ngaphezulu kwamashumi amabini eminyaka. Ayilungiswanga le nto. Ubomi bokugqibela buxhomekeke ngokupheleleyo kwiimeko zayo zokusebenza kunye nomgangatho wezinto zayo.

Cinga ngobomi bevalve njengetanki epheleleyo yegesi. Uqala ngoluhlu lweminyaka engama-20. Yonke imeko enzima oyithobelayo isebenzisa loo mafutha ngokukhawuleza. Eyona miba mikhulu yimitha ye-UV evela ekukhanyeni kwelanga kunye nokusetyenziswa rhoqo. Ivalve efakwe ngaphandle ngaphandle kokhuseleko iya kuba brittle njengokoImitha ye-UV iphula iplastiki yePVC. Emva kweminyaka embalwa, yayinokuba buthathaka kangangokuba ukunkqonkqoza nje ngokulula kwakunokuyiphelisa. Ivalve kumzi-mveliso ovulwayo waze wavalwa amaxesha angamakhulu-khulu ngemini uya kuguga amatywina ayo angaphakathi ngokukhawuleza kunokuvalwa kocingo oluphambili olujikwa kabini kuphela ngonyaka. Amaqondo obushushu aphezulu, kwanalawo angaphantsi komda osemthethweni we-60 ° C, asaya kunciphisa ubomi bayo ngokuhamba kwexesha xa kuthelekiswa nevalve kwindawo epholileyo, emnyama. Ubomi obude bokwenyani buvela ekufaniseni aumgangatho wevalvekwindawo ethambileyo.

Ingaba iivalvu zebhola zePVC zihlala ixesha elingakanani?

Uvile ukuba zingahlala amashumi eminyaka. Kodwa ukhe wazibona ezinye eziqhekekileyo kwaye zityheli emva kwamaxesha ambalwa onyaka. Oku kwenza kube nzima ukubathemba.

Kwindawo ekhuselweyo, enoxinzelelo oluphantsi njengomgca wemibhobho yangaphakathi, ivalve yebhola ye-PVC inokuhlala ngokulula iminyaka engaphezu kwama-20. Nangona kunjalo, xa ibonakaliswe kwilanga elithe ngqo kunye nokusetyenziswa okuphezulu, ubomi bayo bokusebenza bunokunqunyulwa kwiminyaka eyi-3-5 kuphela.

Lo mahluko yinto endixoxa ngayo noBudi ngalo lonke ixesha. Unomthengi omnye, umfama, owafakela iivalve zethu kwindlu yempompo evalekileyo yenkqubo yakhe yokunkcenkceshela kwiminyaka eli-15 eyadlulayo. Zikhuselekile elangeni nakwimozulu, yaye zisebenza ngokugqibeleleyo ukuza kuthi ga kulo mhla. Unomnye umxhasi ofakela imibhobho yamanzi kumachibi aphezu kophahla. Iiprojekthi zakhe zokuqala zasebenzisa iivalve ezingakhuselekanga. Kwilanga eligqats’ ubhobhoyi eIndonesia, ezo zivalo zaba rhabaxa zaza zaqalisa ukungasebenzi kwisithuba seminyaka emine. Yayiyivalve yodidi oluphezulu. Umahluko wawukuphela kwemekobume. Oku kubonisa ukuba umbuzo awukho nje "Ihlala ixesha elingakanani ivalve?" kodwa “Koda kube ninikule ndawo ikhethekileyo?” Ukukhusela ivalve ye-PVC kutshaba lwayo oluphambili, ilanga, yeyona nto ibalulekileyo ongayenza ukuze uqinisekise ukuba ifikelela kubomi bayo obukhuluipeyinti yelatexokanye aibhokisi yevalvuinokongeza iminyaka yobomi.

Zithembeke kangakanani iivalvu zebhola zePVC?

I-PVC yiplastiki nje, kwaye inokuziva yomelele ngakumbi kunentsimbi. Unexhala lokuba inokuqhekeka okanye ivuze phantsi koxinzelelo lwehlabathi lokwenyani, iyenza ibonakale ingathembekanga kangako kunevalve yobhedu enzima.

Iivalvu zebhola zePVC ezikumgangatho ophezulu zithembeke kakhulu kwizicelo ezijolise kuzo. Ukwakhiwa kweplastiki yabo kuthetha ukuba bakhuselekile ngokupheleleyo kwi-rust kunye ne-mineral buildup ebangela ukuba iivalve zentsimbi zingaphumeleli okanye zibambe ngokuhamba kwexesha.

Ukuthembeka kungaphezu kwamandla akhohlakeleyo; imalunga nokusebenza okungaguqukiyo. Ivalve yentsimbi ibonakala yomelele, kodwa kwiinkqubo ezininzi zamanzi, ukuthembeka kwayo ngokwenene kuyehla ngokuhamba kwexesha. Iiminerali emanzini, okanye iikhemikhali ezifana neklorini, zinokubangela ukubola kunye nesikali ukwakha ngaphakathi. Oku kwenza ivalve iqine kwaye kube nzima ukuyijika. Ekugqibeleni, inokuthimba ngokupheleleyo, iyenze ingabi namsebenzi kwimeko kaxakeka. Iivalvu zePVC azinayo le ngxaki. Ziyikhemikhali inert emanzini kunye nezongezo eziqhelekileyo. Azikwazi ukugqwala okanye zidle. Umphezulu wangaphakathi uhlala ugudile, kwaye ibhola iyaqhubeka nokujika ngokulula, nangemva kweminyaka elishumi yenkonzo. Oku kukuthembeka kokwenyani ndithetha nabathengi bakaBudi malunga. Kuso nasiphi na isicelo samanzi abandayo, ukusuka kumachibi ukuya kunkcenkceshelo ukuya kwi-aquaculture, ivalve ye-PVC inikezela ngenqanaba lexesha elide, ukuthembeka okuqikelelwayo ukuba isinyithi sihlala singenako ukuhambelana kuba asiyi kuhlutha.

Ingaba ivalve yePVC ihlala ixesha elingakanani?

Ivalve yakho iyekile ukusebenza ngokuchanekileyo. Uyazibuza ukuba ingaba igugile na ngenxa yokwaluphala, okanye kukho into ethile ebangele ukuba ingaphumeleli ukuze ukwazi ukuyinqanda ukuba ingenzeki kwakhona.

Ubomi bevalve ye-PVC buphela xa icandelo eliphambili lisilela. Oku kusoloko kubangelwa yenye yezinto ezintathu: itywina eligugileyo langaphakathi, ukuthotywa kwe-UV okwenza umzimba ube brittle, okanye umonakalo ngokwasemzimbeni ngenxa yokuqina ngokugqithisileyo.

Iivalvu “azife nje kukwaluphala”; inxalenye ethile inika. Eyokuqala kunye nokungaphumeleli okuqhelekileyo kukutywinwa. Amakhonkco e-PTFE amhlophe atywina ibhola kunye namakhonkco e-EPDM O-omnyama kwi-stem aguga ukusuka kumawaka emijikelezo evulekile-kunye-evaliweyo. Oku kukhokelela ekuvuzeni okuncinci, mhlawumbi ngombhobho okanye ngaphandle komqheba. Oku kunxitywa kunye nokukrazuka okuqhelekileyo. Ukusilela kwesibini ngumzimba ngokwawo. Ukukhanya kwe-UV kwenza i-PVC ibe brittle kwiminyaka. Ivalve esebenza ngokugqibeleleyo inokuqhekeka ngokukhawuleza kwihamile yamanzi okanye impembelelo encinci. Ukusilela kwesithathu okuqhelekileyo kwenzeka ngexesha lofakelo. Abantu bahlala besebenzisa amandla amaninzi okanye iteyiphu yentambo xa bedibanisa iivalve ezinemisonto. Oku kudala uxinzelelo olukhulu kwisiphelo sowesifazane ophothiweyo wevalve, ebangela ukuqhekeka kweenwele ezinokusilela kwiiveki okanye kwiinyanga kamva. Ukuqonda ezi ndlela zokusilela kubonisa ukuba ubomi bevalve yinto onokuthi uyilawule ngokusebenzayo kwaye uyandise.

Ukuqukumbela

Ivalve yePVC esemgangathweni ingahlala amashumi eminyaka. Ubomi bayo buxhomekeke kancinci kwixesha nangaphezulu ekusebenziseni ngokufanelekileyo, ukukhuselwa kwisibane se-UV, kunye noyilo lwenkqubo oluchanekileyo lokusetyenziswa kwayo.