Kufuneka ufake ivalvu yebhola yePVC, kodwa ukunamathela kakubi kunokubangela ukuvuza. Le mpazamo ilula inokonakalisa iprojekthi yakho, ichithe izinto ezibizayo, kwaye yonakalise igama lakho kubathengi bakho.

Ukuze uncamathisele ivalvu yebhola yePVC, faka iprimer emfusa kwisiphelo sepayipi nangaphakathi kwesokhethi yevalvu. Landelela ngokukhawuleza ngomaleko omkhulu wesamente yePVC kuzo zombini iindawo. Faka umbhobho ngokupheleleyo kwisokhethi ngokujika kwekota uze uwubambe ngokuqinileyo imizuzwana engama-30.

Kwiminyaka edlulileyo, ndibone ukufakelwa okuninzi, kwaye ivalvu elungileyo inokungaphumeleli ngenxa yejoyinti enye embi. Ngumceli mngeni oqhelekileyo abaphathi bokuthenga abanjengoBudi kunye namaqela akhe okufakela abajongene nawo yonke imihla. Inkqubo ngokwayo ilula, kodwa inyathelo ngalinye libalulekile ekudaleni ibhondi eya kuhlala amashumi eminyaka. Ukutsiba inyathelo elinye, okanye ukukhawulezisa inkqubo, ngumahluko phakathi kweinkqubo engavuziyokunye nokufowunelwa kwakhona. Masihlalutye iinkcukacha ukuqinisekisa ukuba lonke unxibelelwano olwenzayo lugqibelele.

Ngaba iivalvu zebhola zePVC zingavuza?

Uthembe iivalvu zebhola zePVC ukuze zivale ngokuthembekileyo. Kodwa ukuthontsiza okucothayo nokufihlakeleyo kunokungabonakali kangangeeveki, okubangela umonakalo wamanzi okanye ukulahleka koxinzelelo olubalulekileyo kwinkqubo okubangela ukudideka nokubiza kakhulu ukukufumana.

Ewe, iivalvu zebhola zePVC zinokuvuza ngokupheleleyo. Ukuvuza kudla ngokuvela kwiindawo ezidityaniswe nge-solvent ngenxa yokuncamathiselwa okungafanelekanga. Zinokuvuza nakwi-valve stem packing ngokuhamba kwexesha, okanye zingasebenzi ngaphakathi ukuba izitywino zonakele.

Xa ivalvu ivuza, phantse isoloko ifikelela kwelinye lamanqaku amathathu abuthathaka. Eyona ixhaphakileyo endiyibonayo yijoyinti ngokwayo. Le phantse isoloko iyimpazamo yokufaka. Mhlawumbi umfaki akasebenzisanga iprimer, okanye akafakanga isamente eyaneleyo, okanye akakwazanga ukubamba ijoyinti ixesha elide ngokwaneleyo ukuze i-chemical weld iqine. Kwa-Pntek, sifaka iisokhethi zethu zevalvu nge-ukunyamezelana okuqinileyoukunceda ukuqinisekisa ukuba ilingana kakuhle, nto leyo enceda ekunciphiseni ezi mpazamo. Indawo yesibini yokuvuza sisiqu. Ii-O-rings ezivala isiphatho zinokuguga ngenxa yokusetyenziswa rhoqo okanye ziwohloke ziikhemikhali.Iivalvu zethusebenzisa umgangatho ophezuluIiringi ze-EPDM Okwaye zihlala zinesakhiwo esitywinwe kabini ukubonelela ngokhuseleko olongezelelekileyo ekuvuthweni kwesiqu. Ingxaki yesithathu kukuvuzangokusebenzisaivalvu xa ivaliwe. Oku kwenzeka xa inkunkuma efana nesanti ibanjwa ize ikrwele izihlalo zangaphakathi, okanye izihlalo ziphela xa ivalvu ingekho semgangathweni.

Ngaba i-PVC ayingeni manzi nge-100%?

Ucinga ukuba ekubeni i-PVC iyiplastiki, ayingeni manzi kwaphela. Kodwa le ngcinga inokuba yingozi ukuba awuqondi imida yayo, nto leyo ekhokelela ekubeni wenze iinkqubo ezinokungaphumeleli ekugqibeleni.

Izinto eziqinileyo zePVC ngokwazo azinamanzi ngokupheleleyo kwaye azinamibhobho. Nangona kunjalo, iPVC egqityiweyoinkquboayingeni manzi kuphela njengengongoma yayo ebuthathaka—izihlanganisi ezidityaniswe ngesinyibilikisi. Ijoyinti eyenziwe ngokugqibeleleyo iyimfuneko ngokupheleleyo ukuze kudalwe inkqubo engangeni manzi eyi-100%.

Lo ngumahluko obaluleke kakhulu phakathi kwezinto kunye nenkqubo. Ungathatha iqhekeza lombhobho wePVC uze ulishiye limanzi amashumi eminyaka, kwaye izinto ngokwazo aziyi kufunxa amanzi okanye zonakale. Yipolymer eqinileyo, engenamibhobho. Ubuthathaka abuyonto yombhobho okanye izinto zokudibanisa, kodwa lunxibelelwano phakathi kwazo oludalwe liqela lakho.inkqubo yesamente yesinyibilikisiNgokwenyani yi-weld yekhemikhali. I-primer ihlambulula umphezulu kwaye isamente inyibilikisa okwethutyana iziqwenga ezibini zeplastiki, izidibanise zibe yinto enye. Ukuba loo weld ayiphelelanga ngenxa yokungcola, ukungabikho kwesamente, okanye ukungayibambi ngokuqinileyo, inokwenza umjelo omncinci, omncinci. Le mjelo isenokungavuzi xa kuxinzelelo oluphantsi, kodwa xa inkqubo icinezelwe ngokupheleleyo, amanzi aya kufumana indlela yokungena. Kumaqela kaBudi eIndonesia, kubalulekile ukukhumbula ukuba imozulu efudumeleyo nefumileyo iyayichaphazela.amaxesha okunyangaIlungu kufuneka lihlale lingaphazanyiswa ixesha elide ngokwaneleyo ukuze liqine ngokupheleleyo ngaphambi kokuba kufakwe uxinzelelo.

Kutheni iivalvu zebhola zePVC zibambeka?

Kufuneka uvale amanzi xa kukho imeko engxamisekileyo, kodwa isiphatho sevalvu asizukushukuma. Ivalvu ebambekileyo ayisebenzi kwaphela xa uyidinga kakhulu kwaye ingaguqula ukugcinwa okulula kube yiprojekthi enkulu.

Iivalvu zebhola zePVC zihlala zibambeka ngenxa yokusetyenziswa rhoqo, nto leyo evumela ukuba iidipozithi zeeminerali zakheke phakathi kwebhola kunye nezitywino zayo. Ukuqinisa kakhulu ii-union nuts kwi-union valve yokwenyani kunokubangela ukuba ibopheke kwaye kube nzima ukuyijika.

Esi sisikhalazo senkonzo yokuqala malunga neevalvu zebhola zayo nayiphi na into. Isizathu esiqhelekileyo silula—ivalvu ayisetyenziswa. Amanzi, ingakumbi amanzi aqinileyo, aqulethe iiminerali ezinyibilikisiweyo ezifana necalcium. Xa ivalvu ihleli kwindawo enye evulekileyo unyaka wonke, ezi minerali zinokunyuka kancinci kwaye zakheke phakathi kwebhola kunye nezihlalo zePTFE, zisebenza njengesamente. Eyona ndlela ilula yokuthintela oku “kukuzilolonga” ivalvu ngokuyicima kwaye uyivule kanye kwiinyanga ezimbalwa. Oku kuphelisa naluphi na ulwakhiwo oluncinci. Esinye isizathu esiqhelekileyo, ngakumbiiivalvu zomanyano lokwenyani, iqina kakhulu. Ii-union nuts ezinkulu zikho ukuze zivale umzimba wevalvu kusetyenziswa ii-O-rings. Zifuna ukuba ziqiniswe ngesandla kuphela kunye nokujika okuncinci ngesitshixo. Xa umfaki ewacinezela ngesitshixo esikhulu, ucinezela umzimba wonke wevalvu, ucinezele ibhola kwizihlalo kwaye kwenze kube nzima kakhulu ukuyijika.Iivalvu zePntekzenzelwe ukutywina ngokugqibeleleyo ngaphandle kolu hlobo lwamandla agqithisileyo.

Ungazi njani ukuba ivalvu yePVC ayilunganga?

Ivalvu engasebenziyo ingabonakala ilungile ngokupheleleyo ngaphandle. Ukungazazi iimpawu zesilumkiso ezifihlakeleyo kunokukhokelela ekuweleni ngequbuliso nakwintlekele, okubangela umonakalo wepropathi kunye nokuphazamisa inkonzo yabathengi bakho.

Ivalvu yePVC ayilunganga ukuba ivuza kwiindawo zayo okanye esiqwini, ayiyeki ngokupheleleyo ukuhamba kwamanzi xa ivaliwe, okanye ukuba isiphatho asikwazi ukujika. Naziphi na iintanda ezibonakalayo emzimbeni wevalvu nazo ziluphawu olucacileyo lokuba ifuna ukutshintshwa ngokukhawuleza.

Kubalulekile ukuba amaqela akho azi ukuba ajonge ntoni ngexesha lokuhlolwa rhoqo. Ukuhlolwa okumbalwa okulula kunokuthintela ingxaki enkulu kamva. Okokuqala, yenza uhlolo olucokisekileyo olubonakalayo. Khangela naziphi na iimfanta zeenwele, ingakumbi ezijikeleze izikhonkwane apho umbhobho ufakwe khona. Ezi zibangelwa luxinzelelo kwaye ziluphawu lokusilela okuzayo. Kwakhona, jonga naluphi na utshintsho olubalulekileyo lombala, olunokuthetha ukuba i-PVC yonakala ngenxa yokuvezwa ziikhemikhali okanye ukukhanya kwe-UV. Okulandelayo, yenza uvavanyo olusebenzayo. Vala ivalvu kwaye ubone ukuba amanzi asadlula na. Olu "kuvuza" luthetha ukuba izihlalo zangaphakathi zonakele. Jonga naziphi na iimfanta ezivela kwisiqu sesiphatho okanye kwiikhonkco ezincamathelisiweyo. Okokugqibela, vavanya isenzo sesiphatho. Kufuneka siqine kodwa sijike kakuhle. Ukuba siqandisiwe ngokupheleleyo okanye siqinile kangangokuba usengozini yokuphula isiphatho, asithembekanga kwaye kufuneka sitshintshwe. Ivalvu esemgangathweni evela kumenzi othembekileyo njengoPntek iya kuba neendonga ezityebileyo kunye noyilo lwesiqu oluqinileyo, okwenza ezi ntsilelo zingabi nokwenzeka kakhulu.

Isiphelo

Ukuncamathisela ivalvu yePVC ngokuchanekileyo kubalulekile kwinkqubo engavuziyo. Qaphela ukuba iivalvu zinokuvuza okanye zibambeke, kwaye wazi iimpawu ezibonakalayo zevalvu embi ukuthintela ukungaphumeleli kwixesha elizayo.