Uzama ukufumana umvelisi weevalvu zePVC “omkhulu”, ucinga ukuba lolona khetho lukhuselekileyo. Kodwa olu phando ludla ngokukhokelela kwiinkampani ezinkulu ezinamaxabiso aphezulu, inkonzo engaguqukiyo, kunye nomdla omncinci kwiimfuno zakho ezithile zemarike.

Akukho mvelisi mnye “omkhulu” kwihlabathi liphela. Imakethi yahlulwe phakathiiimpawu ezinkulu zaseNtshona ezifana noGeorg Fischer kunye noSpears, kwaye uninzi olukhulu,abavelisi abakhethekileyo eTshayina naseAsiaezikhonza iindawo ezahlukeneyo kunye namanqanaba omgangatho. Igama elikhulu alisoloko lifanelekile.

Ndithethe nabaphathi abaninzi bokuthenga abafana noBudi ngale nto kwiminyaka engama-20 edlulileyo. Badla ngokuqala ngokukhangela igama lebhrendi elikhulu, becinga ukuba ubungakanani bulingana nomgangatho kunye nokuthembeka. Kodwa "enkulu" ayisoloko "ingcono," ingakumbi kwimarike eguqukayo efana ne-Indonesia. Umbuzo wokwenyani asingowokuba ngubani omkhulu, kodwa ngubanikuneneiqabane lokuvelisa kwishishini lakho. Makhe sihlolisise ukuba kuthetha ukuthini ngokwenene "okona kulungileyo" kumthengi oqeqeshiweyo ofuna ukulinganisela ukusebenza, ukuthembeka kunye neendleko.

Yeyiphi ivalvu ye-pvc yenkampani engcono?

Udinga ivalvu "engcono" ukuqinisekisa iiprojekthi zakho kwaye uphephe ukungaphumeleli. Kodwa ukukhetha ngokusekelwe kwigama lebhrendi elidumileyo kuphela kuthetha ukuba uhlawula kakhulu kwiimpawu ongazidingiyo kwisicelo sakho.

Inkampani "eyona ilungileyo" ixhomekeke ngokupheleleyo kwisicelo sakho esithile. Kwiimveliso ezikumgangatho ophezulu, iimpawu ezifana noGeorg Fischer zezona ziphezulu. Kwiinkqubo zamanzi ezithembekileyo nezingabizi kakhulu kunye nokunkcenkceshela, umenzi-qabane ozinikeleyo ofana noPntek unikezela ngebhalansi engcono yokusebenza, iziqinisekiso kunye nexabiso.

Igama elithi “eyona nto ilungileyo” alikho jikelele; lilungelelaniso lwezinto ezithile kulo msebenzi. Kumthengi onamava njengawe, Budi, ukukhetha umthengisi ofanelekileyo kuthetha ukufanisa imveliso nosetyenziso. Ivalvu “eyona nto ilungileyo” kwisityalo seekhemikhali ibiza kakhulu kwaye ibiza kakhulu kwinkqubo yokunkcenkceshela. Ndicinga ngale nto kwiindidi ezintathu eziphambili.

Amanqanaba ezicelo kunye neNkampani "eBalaseleyo"

Kwabaninzi bamaqabane am eMzantsi-mpuma Asia, udidi lwesithathu lolona lubalulekileyo. Bafuna amashumi amawaka eevalvu ezithembekileyo kwiiprojekthi zeziseko zophuhliso. Kule meko, inkampani "eyona ilungileyo" asiyiyo enebhajethi enkulu yokuthengisa, kodwa yileyo inefektri esebenza kakuhle, ulawulo lomgangatho olungqongqo ngexabiso layo, kunye nokuqonda okunzulu iimfuno zemarike yakho.

Ngowuphi uphawu lwevalvu yePVC olungcono?

Ubona uninzi lwee-valve brands kwimiboniso yorhwebo nakwiimarike zasekuhlaleni. Zonke zithi zezona zibalaseleyo, nto leyo eyenza kube nzima ukwazi ukuba zeziphi ezibonelela ngomgangatho wokwenyani ngokuchasene nokuthengisa okukrelekrele.

Uphawu "olubalaseleyo" lolona luhlala luzalisekisa izithembiso zalo kwaye luneziqinisekiso zokungqina oko. Khangela iimpawu ezicacileyo malunga nezixhobo zazo kunye neenkqubo zokuvelisa, njengoko oku kubonisa ukuzinikela ngokwenene kumgangatho, kungekuphela nje kwilogo.

Njengomvelisi, ndiyazi ukuba uphawu lungaphezulu kakhulu kunegama elibhalwe kwivalvu. Uphawu sisithembiso sethu sokuhlala sihleli kuwe. Xa uthenga ivalvu kuphawu oluthembekileyo, ulindele ukuba ivalvu yewaka ukuze ifane ngokugqibeleleyo ngomgangatho, umsebenzi, kunye nobukhulu bohlobo lokuqala. Oko kuthembana yikona okwenza uphawu lube luncedo. Nantsi into endiyixelela amaqabane am ukuba ayijonge ukuze agwebe ukuba uphawu "lungcono" ngokwenene.

Okokuqala, khangelaukufana. Ngaba umbala, ubunzima, kunye nokuziva okugudileyo kwesiphatho kuhlala kufana ukusuka kolunye ulwalathiso ukuya kolunye? Iimveliso ezingaguquguqukiyo zibonisa ulawulo olubi kwizinto ezikrwada kunye nemveliso. Okwesibini, khangelaukucaca. Ngaba uphawu luchaza ngokucacileyo ukuba lusebenzisa i-PVC eyi-100% engabonakaliyo? Okanye bathule ngayo? Uphawu oluzithembileyo luyazingca ngezinto zalo. Okwesithathu, khangela ukubaiziqinisekisoNgaba banayoizatifikethi ezaziwayo kwihlabathi liphela ezifana ne-ISO, okanye ezihambelana nemveliso ethile njenge-WRAS okanye i-NSF? Olu bubungqina obuzimeleyo bokuba ziyahlangabezana nomgangatho ophezulu. Okokugqibela, yintoniudumo lwemarikeBathini abanye abakhi abanamava e-Indonesia ngale bhrendi? Ibhrendi enamandla yakha udumo lwayo ngeminyaka yokusebenza okuthembekileyo kweli candelo.

Loluphi uhlobo olulungele ukunkcenkceshela kwezolimo?

Iiprojekthi zakho zokunkcenkceshela zixhomekeke kumawaka eevalvu. Ukukhetha uphawu olungabizi kakhulu nolubuthathaka kunokukhokelela ekuvuthweni okubanzi kunye nokuqhekeka kwelanga elishushu, okubangela ukusilela kwesivuno kunye nelahleko enkulu yemali kubathengi bakho.

Uhlobo olubalaseleyo lokunkcenkceshela kwezolimo ludibanisa ukuqina, ukumelana okunamandla kwe-UV, kunye nexabiso elihle kakhulu. Uhlobo lomenzi olufana nePntek ludla ngokuba lolona lufanelekileyo kuba sigxile ekuveliseni inani elikhulu leevalvu ezithembekileyo nezisemgangathweni ezine-UV inhibitors ngexabiso elikhuphisanayo.

Ukunkcenkceshela kubeka iimfuno ezikhethekileyo kwivalvu yePVC, kwaye le yindawo apho ndigxile khona kakhulu kwimizamo yefektri yethu. Iimfuno zahlukile kakhulu kumsebenzi wokufaka amanzi ngaphakathi endlini. Okokuqala nokubalulekileyo kukubaUkumelana ne-UVIivalvu zichatshazelwa lilanga elinamandla lasetropiki imini yonke, yonke imihla. Ngaphandle kwezongezo ezikhethekileyo ezithintela i-UV kwizinto eziluhlaza zePVC, ivalvu iya kuba buthathaka kwaye iqhekeke kungakapheli unyaka okanye emibini. Uphawu oluhle lokunkcenkceshela luhlala lusebenzisa izinto ezizinzileyo ze-UV.

Okulandelayo nguUkuqina. Iivalvu zokunkcenkceshelazidla ngokuvulwa nokuvalwa rhoqo, maxa wambi yonke imihla. Isiphatho, isiqu, kunye nezitywino zangaphakathi kufuneka zomelele ngokwaneleyo ukumelana nokusetyenziswa rhoqo. Sisebenzisa iziphatho eziqinisiweyo kunye neeringi ze-EPDM O-rings zodidi oluphezulu ngokukodwa ngenxa yesi sizathu, njengoko zibambelela ngcono kunerabha eqhelekileyo. Okokugqibela, kukho ingxaki yokubaIxabiso kwiSikali. Iprojekthi yokunkcenkceshela ingasebenzisa amawaka eevalvu. Uphawu "olubalaseleyo" alulona olunexabiso eliphantsi kakhulu—njengoko ngokuqinisekileyo luya kusilela—kodwa lolona phawu lufikelelekayo oluqinisekisiweyo ukuba luza kuhlala ixesha elide. Luphathelele ukubonelela ngexabiso eliphantsi kakhulu lobunini, ingcamango endiyaziyo ibalulekile kuwe, Budi.

Ingaba ibalulekile na ivalvu yePVC endiyisebenzisayo?

Ivalvu yePVC ibonakala ngathi yinxalenye elula yempahla. Kulula ukucinga ukuba zonke ziyafana, kodwa oku kunokubangela ukuba uthenge ivalvu ekumgangatho ophantsi eqhekekayo phantsi koxinzelelo, nto leyo ebangela ukusilela okukhulu kwenkqubo.

Ewe, kubaluleke kakhulu ukuba usebenzisa yiphi ivalvu yePVC. Umgangatho wevalvu yakho uchaphazela ngokuthe ngqo ukhuseleko kunye nokuthembeka kwenkqubo yonke yemibhobho. Ivalvu engabizi kakhulu, eyenziwe kakubi yeyona ndawo ixhaphakileyo yokusilela kwaye iya kukubiza kakhulu xa ulungisa kwixesha elizayo.

Lo ngumbuzo obaluleke kakhulu kuyo yonke. Ngokweminyaka yam engama-20 yamava okuvelisa, ndingakuxelela ukuba umahluko mkhulu kakhulu. Konke kuxhomekeke kwizinto ezintathu ezingabonakaliyo ngaphandle.

1. Umgangatho wezinto eziphathekayo

Le yeyona nto iphambili. Abavelisi abaphezulu basebenzisa i-resin ye-PVC eyi-100% eyi-virgin. Abavelisi abaxabisa kancinci badla ngokuxuba izizalisi ezifana ne-calcium carbonate. Le filler yenza ivalvu ingabizi kwaye ibe nzima, nto leyo enokukhohlisa umthengi ongenamava ukuba acinge ukuba iqinile. Kodwa yenza iplastiki ibe buthathaka kwaye ibe buthathaka. Iya kuqhekeka phantsi koxinzelelo, ukubetheka, okanye utshintsho lobushushu. Sisebenzisa i-PVC eyi-100% eyi-virgin kuphela, kwaye olu xanduva lusisiseko somgangatho wethu.

2. Ukuchaneka kweMveliso

Ukulingana kwangaphakathi phakathi kwebhola kunye nezihlalo zePTFE kuko okudala isitywino esigqibeleleyo, esingavuziyo. Ubukhulu beesokhethi zeevalvu zezona zivumela i-solvent weld enamandla. Sityale imali eninzi kwiimolds ezichanekileyo kakhulu kunye ne-automated assembly ukuqinisekisa ukuba ivalvu nganye iyahlangabezana nale migaqo ichanekileyo. Umzi-mveliso onemolds ezindala, ezigugileyo uya kuvelisa iindawo ezingahambelaniyo ezinokuthi zingasebenzi.

3. Ulawulo loMgangatho

Ngaba umenzi uyayivavanya yonke ivalvu? Okanye bajonga nje enye kwikhulu nganye? Ivalvu enye embi inokubangela intlekele. Yiyo loo nto ePntek, senza umsebenzi wethu.Uvavanyo loxinzelelo lomoya lwe-100% kwivalvu nganyengaphambi kokuba ipakishwe. Eli linyathelo elingenakuphikiswa kuthi.Xa ukhetha ivalvu, ukhetha ukuzinikela komenzi kwimigangatho.

Isiphelo

Umvelisi “omkhulu” asingowona njongo. Ukhetho “olungcono” liqabane elithembekileyo lokuvelisa elibonelela ngomgangatho ohambelanayo, izixhobo eziqinisekisiweyo, kunye nokusebenza okufanelekileyo kwisicelo sakho esithile kunye nemarike.