Udidwe yizo zonke izinketho zokufaka ipulasitiki? Ukukhetha okungalungile kungaholela ekubambezelekeni kwephrojekthi, ukuvuza, nokulungiswa okumba eqolo. Ukuqonda ukufakwa kwe-PP kuyisihluthulelo sokukhetha ingxenye efanele.

Ukufakwa kwe-PP yizixhumi ezenziwe nge-polypropylene, i-thermoplastic eqinile futhi eguquguqukayo. Ngokuyinhloko asetshenziselwa ukujoyina amapayipi ezinhlelweni ezidinga ukubekezelelana kokushisa okuphezulu kanye nokumelana okuhle kakhulu namakhemikhali, okuwenza alungele ukusetshenziswa kwezimboni, ilabhorethri, kanye nezicelo zamanzi ashisayo.

Ngisanda kuthola ucingo no-Budi, umphathi wokuthenga e-Indonesia. Uyingcweti ku-PVC kodwa unekhasimende elisha elicela “Ukufakwa kokucindezela kwe-PP” ukuze kulungiswe ilabhorethri. U-Budi wayengenaso isiqiniseko esiphelele mayelana nomehluko oyinhloko nokuthi kufanele atuse nini i-PP phezu kwe-PVC ayazi kahle kakhulu. Wayekhathazeke ngokunikeza iseluleko esingalungile. Isimo sakhe sivamile. Ochwepheshe abaningi bajwayele uhlobo olulodwa noma ezimbili zezinto zamapayipi kodwa bathola ukuhlukahluka okukhulu kwamapulasitiki. phula lokho okwenza ukufakwa kwe-PP kube yingxenye ebalulekile yamapayipi esimanje.

Iyini i-PP efanelekile?

Udinga ukuxhuma amapayipi ukuze uthole umsebenzi onzima, kodwa awunaso isiqiniseko sokuthi i-PVC ingakwazi yini ukuwenza. Ukusebenzisa izinto ezingalungile kuzoholela nakanjani ekuhlulekeni kwesistimu nasekusebenzeni kabusha okubizayo.

Ukufakwa kwe-PP ucezu lokuxhumana olwenziwe ngepulasitiki ye-polypropylene. Izici zayo eziyinhloko ukuzinza kwezinga lokushisa eliphezulu (kufika ku-180°F noma 82°C) nokumelana okuphakeme nama-asidi, ama-alkali, namanye amakhemikhali abolayo, yingakho ikhethwa ngaphezu kwe-PVC evamile ezindaweni ezithile.

Uma sibheka eduze kokufakwa kwe-PP, sibheka ngempela izakhiwo ze-polypropylene ngokwayo. NgokungafaniI-PVC, engase ibe brittle ngamakhemikhali athile noma yonakale emazingeni okushisa aphakeme, i-PP igcina ubuqotho bayo besakhiwo. Lokhu kuyenza ibe yinto yokuya ezintweni ezifana nemigqa yemfucuza yamakhemikhali elebhu yasenyuvesi noma amalophu okuhambisa amanzi ashisayo esakhiweni sezentengiselwano. Ngachazela uBudi ukuthi ngenkathi kokubili i-PVC kanyeImikhiqizo ye-PPxhuma amapayipi, imisebenzi yabo ihluke kakhulu. Usebenzisa i-PVC kumapayipi amanzi abandayo ajwayelekile. Usebenzisa i-PP uma kubandakanyeka ukushisa noma amakhemikhali. Waqonda masinyane. Akukhona ngokuthi yikuphi “okungcono,” kodwa yikuphiithuluzi elilungilengomsebenzi othize ikhasimende lakhe okudingeka liwenze.

I-PP vs. Ukufakwa kwe-PVC: Ukuqhathanisa Ngokushesha

Ukwenza ukukhetha kucace kakhudlwana, nansi incazelo elula yokuthi impahla ngayinye ikhanya kuphi.

Isho ukuthini i-PP ekufakeni amapayipi?

Ubona izinhlamvu “PP” kukhathalogi yomkhiqizo, kodwa zisho ukuthini ngempela ohlelweni lwakho? Ukuziba amakhodi abalulekile kungaholela ekutheni uthenge umkhiqizo ongafanele.

Emapayipini, i-PP imele i-Polypropylene. Yigama le-polymer ye-thermoplastic esetshenziselwa ukwenza ipayipi noma ukufaka. Le lebula ikutshela ukuthi umkhiqizo wakhelwe ukuqina, ukumelana namakhemikhali, nokusebenza emazingeni okushisa aphakeme, iwuhlukanisa kwamanye amapulasitiki afana ne-PVC noma i-PE.

I-Polypropylene iyingxenye yomndeni wezinto ezibizwa ngokuthithermoplastics. Ngamagama alula, lokhu kusho ukuthi ungayishisisa ifike ezingeni elincibilikayo, uyipholise, bese uyishisa kabusha ngaphandle kokuwohloka okukhulu. Lesi sakhiwo senza kube lula ukwenza izimo eziyinkimbinkimbi ezifana nama-tee-fittings, izindololwane, nama-adaptha ngokubumba umjovo. Kumphathi wokuthenga njengoBudi, ukwazi ukuthi “PP” kusho i-polypropylene isinyathelo sokuqala. Okulandelayo ukuqonda ukuthi kunezinhlobo ezahlukene ze-PP. Okubili okuvame kakhulu kukhonaPP-H(Homopolymer) kanye ne-PP-R (I-Copolymer engahleliwe). I-PP-H iqinile futhi ivame ukusetshenziselwa izicelo zezimboni. I-PP-R ivumelana nezimo futhi iyindinganiso yakho kokubili amasistimu amapayipi amanzi ashisayo nabandayo ezakhiweni. Lolu lwazi lumsiza ukuthi abuze amakhasimende akhe imibuzo engcono ukuze aqinisekise ukuthi athola umkhiqizo oqondile awudingayo.

Izinhlobo zePolypropylene kuPiping

Liyini ipayipi le-PP?

Udinga ipayipi lamanzi ashisayo noma umugqa wamakhemikhali futhi ufuna ukugwema ukugqwala kwensimbi. Ukukhetha impahla yepayipi engalungile kungaholela ekungcola, ukuvuza, kanye nempilo yesevisi emfushane.

Ipayipi le-PP ishubhu elakhiwe ngepulasitiki ye-polypropylene, elakhelwe ngokuqondile ukuthutha uketshezi olushisayo, amanzi okuphuzwayo, namakhemikhali ahlukahlukene ngokuphepha. Ayisindi, ayigqwali, futhi inikeza indawo yangaphakathi ebushelelezi emelana nokwakheka kwesikali, iqinisekisa ukugeleza okungaguquki ngokuhamba kwesikhathi.

Amapayipi e-PP asetshenziswa kanye nokufakwa kwe-PP ukuze kwakheke uhlelo oluphelele, olulinganayo. Enye yezinzuzo ezinkulu ukuthi ahlanganiswa kanjani. Ukusebenzisa indlela ebizwa ngokuthiukushisa fusion welding, ipayipi nokufakwa kuyashisisa futhi kuhlanganiswe unomphela. Lokhu kudala ukuqina,inhlanganisela engavuzieliqine njengepayipi ngokwalo, lisusa amaphuzu abuthakathaka atholakala ku-glued (PVC) noma izinhlelo ze-threaded (metal). Ngake ngasebenza nekhasimende endaweni entsha yokucubungula ukudla. Bakhetha okugcweleUhlelo lwe-PP-Rngamanzi ashisayo kanye nemigqa yokuhlanza. Kungani? Ngenxa yokuthi impahla yayingeke ingenise noma yimaphi amakhemikhali emanzini, futhi amalunga ahlanganisiwe asho ukuthi yayingekho imifantu ukuze kukhule amagciwane. Lokhu kwaqinisekisa ubumsulwa bomkhiqizo wabo kanye nokuphepha kwenqubo yabo. Kubo, izinzuzo zepayipi le-PP zadlula amapayipi alula; kwakuyindaba yokulawulwa kwekhwalithi.

Kuyini ukufakwa kwe-PB?

Uzwa ngokufakwa kwe-PB futhi uzibuze ukuthi ingabe kungenye ye-PP. Ukudida lezi zinto ezimbili kungaba yiphutha elikhulu, njengoba umuntu enomlando wokuhluleka okusabalele.

Ukufakwa kwe-PB kuyizixhumi zamapayipi e-Polybutylene (PB), into yamapayipi eguquguqukayo eyake yavamile kumapayipi okuhlala. Ngenxa yamazinga aphezulu okuhluleka okuvela ekuwohlokeni kwamakhemikhali, amapayipi e-PB nokufakwa kwawo akusavunywa amakhodi amaningi okufaka amapayipi futhi kuthathwa njengokungasasebenzi futhi kungathembeki.

Leli iphuzu elibalulekile lemfundo kunoma ubani osembonini. Nakuba i-PP (i-Polypropylene) iyinto yesimanje, ethembekile, i-PB (I-Polybutylene) ngumanduleli wayo oyinkinga. Kusukela ngeminyaka yawo-1970 kuya ko-1990, i-PB yafakwa kabanzi olayini bamanzi ashisayo nabandayo. Nokho, kwatholakala ukuthi amakhemikhali avamile emanzini kamasipala, njenge-chlorine, ahlasela i-polybutylene nezinsimbi zayo zepulasitiki, ezenza zibe brittle. Lokhu kwaholela ekuqhekekeni okungazelelwe kanye nokuvuza okuyinhlekelele, okwabangela izigidigidi zamaRandi emonakalweni wamanzi ezindlini ezingenakubalwa. Uma u-Budi ethola isicelo ngezikhathi ezithile sokufakwa kwe-PB, ngokuvamile esokulungisa. Ngimqeqeshe ukuthi atshele ikhasimende ngokushesha mayelana nezingozi zalo lonke uhlelo lwe-PB futhi ngincome ukushintshwa okugcwele ngezinto ezinzile, zesimanje ezifanaPP-R or I-PEX. Akukhona mayelana nokwenza ukuthengisa okukhulu; imayelana nokuvikela ikhasimende ekwehlulekeni kwesikhathi esizayo.

I-Polypropylene (PP) vs. I-Polybutylene (PB)

Isiphetho

Ukufakwa kwe-PP, okwenziwe nge-polypropylene ehlala isikhathi eside, kuyindlela yokuzikhethela emanzini ashisayo nezinhlelo zamakhemikhali. Ziyisisombululo sesimanje, esithembekile, ngokungafani nezinto ezindala, ezihlulekile njenge-polybutylene.