Uzama ukuthola amapayipi bese ubona ukuthi “ipayipi le-poly” kanye “nepayipi le-HDPE” kusetshenziswa kuma-quotes nasemashidini edatha. Lokhu kudala ukungaqiniseki, okwenza ukhathazeke uma uqhathanisa imikhiqizo efanele noma uphuthelwa imininingwane ebalulekile.

Akukho mehluko osebenzayo. Igama elithi “i-Poly pipe” liyisidlaliso esivamile, esingakahleleki embonini yepayipi le-HDPE (High-Density Polyethylene). Uma othile embonini yemisebenzi yamanzi ethi “i-poly pipe,” ubhekisela epayipini le-HDPE elisetshenziselwa ukusetshenziswa komfutho njengamanzi kanye negesi.

Bengisesicongweni sevidiyo nomsabalalisi omusha eSurabaya, futhi wayelokhu ebuza ngamanani ethu “e-poly pipe” uma kuqhathaniswa namanani ethu “e-HDPE”. Ngayimisa ingxoxo ngachaza ukuthi ayilutho olufanayo. Ubuso bakhe babonisa ukukhululeka ngokushesha. Wayecabanga ukuthi uphuthelwa okuthile kobuchwepheshe. Leli iphuzu elivame kakhulu lokudideka. Igama elithi “Poly” limane nje liyigama lesitsotsi okulula ukulisho, kanti elithi “HDPE” liyizinto zobunjiniyela ezithile. Cabanga ngalokhu: ungase ucele “i-Coke,” kodwa umkhiqizo ngokwawo yi-Coca-Cola. Nganoma iyiphi injongo yobungcweti, sikhuluma nge-HDPE, futhi ngokuvamile izinga le-PE100.

Ungakwazi yini ukusebenzisa izinto zokufaka ze-PVC kumapayipi e-HDPE?

Unenqwaba yezinto zokufakelwa ze-PVC kanye nepayipi le-HDPE elidinga uxhumano. Ukusebenzisa lokho onakho kungaba okusheshayo nokushibhile, kodwa ingabe kuphephile noma kungenzeka?

Cha, awukwazi ukusebenzisa izinto ezijwayelekile ze-PVC epayipini le-HDPE. Izinto azihambisani ngamakhemikhali futhi zidinga izindlela ezihluke ngokuphelele zokuhlanganisa. Ukuzama ukunamathisela into yokuhlanganisa i-PVC epayipini le-HDPE kuzodala ijoyinti eliqinisekisiwe ukuthi lizohluleka ngaphansi kwengcindezi.

Lena inkinga ebalulekile yokuphepha nokuthembeka. I-PVC ne-HDPE ziyimindeni emibili ehlukene ngokuphelele yepulasitiki. Ukufakwa kwe-PVC kuhlanganiswa kusetshenziswa usimende we-solvent, okuwuhlobo lweglue yamakhemikhali. Isinyibilikisi sisebenza ngokuthambisa ubuso bepayipi le-PVC ngamakhemikhali nokufakwa, okuvumela ukuthi kuhlangane njengoba isinyibilikisi sihwamuka. Ngakolunye uhlangothi, i-HDPE iyi-polyolefin. Inendawo enjenge-wax, engasebenzi kahle okungekho glue noma usimende we-solvent ongahlangana nayo kahle. Uma uzama ukuyinamathelisa, ubungakha uphawu olubuthakathaka, lwesikhashana oluzoqhuma ngokushesha nje lapho umugqa ucindezelwa. Indlela ewukuphela kwayo efanele yokuxhuma uhlelo lwe-PVC ohlelweni lwe-HDPE ukusebenzisa i-transition fitting ekhethekile, njenge-i-adaptha ye-flangeohlangothini ngalunye oluhlanganiswe ngamabholidi, noma ukuhlanganiswa kokucindezela okuthile okuklanyelwe ukuhlanganisa izinto ezimbili ezahlukene.

Ingabe uyayinamathelisa ipayipi le-HDPE?

Udinga ukuhlanganisa izingcezu ezimbili zepayipi le-HDPE. Nge-PVC, inqubo ilula: faka i-primer ne-glue. Lokhu kukuholela ekuzibuzeni ukuthi ikhona yini ingcina efanayo yepayipi le-HDPE.

Cha, awusoze wasebenzisa iglue epayipini le-HDPE. Ukwakheka kwamakhemikhali kwe-HDPE kwenza kube nzima ukuthi izinamathiseli zakhe isibopho esihlala njalo nesiqinile. Indlela efanele yokujoyina i-HDPE ukuhlanganisa ukushisa okushisayo, okuncibilikisa ipulasitiki uqobo ukuze kwakheke ijoyinti.

Isizathu sokuthi awukwazi ukunamathisela i-HDPE kungenxa yesayensi yayo yezinto ezibonakalayo. I-HDPE ine-ukumelana okuphezulu kakhulu namakhemikhali kanye nezinyibilikisi, okungenye yezinzuzo zayo eziyinhloko. Lesi sici esifanayo sisho ukuthi izinamathiselo zamakhemikhali, njenge-solvent cement esetshenziselwa i-PVC, azisebenzi nje. Azikwazi “ukuluma” ebusweni bepulasitiki ukuze zenze i-weld. Ukuzama ukuthola “i-glue” ye-HDPE kuyiphutha elivamile kumaqembu amasha kule nto. Indlela efanele neyodwa eyamukelekayo embonini yokwakha i-joint ehlala njalo, yesakhiwo ukuhlanganiswa kokushisa. Le nqubo isebenzisa ithuluzi lokushisa elikhethekile ukuncibilikisa ubuso bamapayipi noma izinto ezihlanganiswayo. Uma sezisesimweni sokuncibilika, ziyacindezelwa ndawonye futhi zibanjwe ngaphansi kwengcindezi. Njengoba ipulasitiki iphola, ihlangana ibe yingxenye eyodwa, engenamthungo. I-joint ephumayo akuyona nje uphawu; iyi-weld egcwele i-monolithic enamandla, noma enamandla kakhulu, kunepayipi yokuqala uqobo.

Iyiphi indlela engcono kakhulu yokujoyina i-HDPE?

Njengoba wazi ukuthi awukwazi ukusebenzisa iglue, udinga ukuqonda indlela efanele yobungcweti. Ukukhetha indlela efanele kubalulekile ukuqinisekisa ukuthi ipayipi lakho liqinile, alivuzi, futhi lizohlala amashumi eminyaka.

Indlela engcono kakhulu yokujoyina i-HDPE ukusebenzisa i-heat fusion. Le nqubo idala i-joint ehlala njalo, eqinile njengepayipi uqobo. Izindlela ezimbili eziyinhloko yilezi:ukuhlanganiswa kwezinqengamapayipi amakhulu kanyeukuhlanganiswa kwesokhethingamapayipi amancane kanye nezinto zokufakelwa.

Ukuhlanganiswa kokushisa kuyindinganiso yegolide ye-HDPE ngoba kususa iphuzu elivame kakhulu lokwehluleka kunoma yiliphi ipayipi: i-joint. Esikhundleni sokuthembela ezintweni ezihlukile njenge-gasket noma i-glue, iphendula iziphetho ezimbili zibe yingcezu eyodwa eqinile. Indlela ethile incike kusayizi wepayipi.

Ukuhlanganiswa Kwezinqe

1. Iziphetho ezimbili zamapayipi ziboshelwe emshinini oqinisekisa ukuhambisana kahle.
2. I-trimmer ekhethekile ibheke emaphethelweni, okwenza ahlanzeke ngokuphelele futhi alingane.
3. Ipuleti lesifudumezi elilawulwa izinga lokushisa libekwa phakathi kwemikhawulo, lincibilikise ekujuleni okuthile.
4. Ipuleti lesifudumezi liyasuswa, bese iziphetho ezincibilikisiwe zicindezelwa ndawonye ngaphansi kwengcindezi elawulwayo, okudala ukushintshwa.

Ukuhlanganiswa Kwesokhethi

1. Ithuluzi lokushisa elinamakhanda abesilisa nabesifazane ahambisanayo lifudumeza ingaphandle lepayipi kanye nengaphakathi lokufakwa ngasikhathi sinye.
2. Uma selifudunyeziwe, ithuluzi liyasuswa, bese ipayipi liphonswa ngokushesha kusokhethi lokufakwa.
3. Izingxenye zigcinwa isikhathi esifushane sokupholisa, okuvumela amapulasitiki ukuthi ahlangane unomphela.

Iyini isikhathi sokuphila sepayipi le-HDPE?

Utshala imali enkulu engqalasizinda yakho. Udinga ukuqiniseka ukuthi izinto ozikhethayo ngeke zidinge ukulungiswa okubizayo noma ukushintshwa eminyakeni embalwa nje.

Ipayipi le-HDPE lihlala isikhathi eside lihlala iminyaka engama-50, kodwa izibikezelo zangempela kanye nezifundo zibonisa ukuthi lingahlala iminyaka eyi-100 noma ngaphezulu. Ukuqina kwalo kuvela ekumelaneni kwalo okumangalisayo nokugqwala, ukuhlaselwa ngamakhemikhali, kanye nokukhathala ngokomzimba, okuqinisekisa izindleko eziphansi kakhulu zobunikazi.

Ukuphila isikhathi eside kwepayipi le-HDPE akuyona nje into efunwayo; kungumphumela wezakhiwo zalo eziyinhloko. Lokhu kwenza kube utshalomali oluhlakaniphe kakhulu lwesikhathi eside, okuyisici esibalulekile sokuhlolwa kwanoma yimuphi umphathi wokuthenga. Kunezizathu eziningana zokuthi lihlale isikhathi eside kangaka:

• Akunamakhemikhali:I-HDPE ayigqwali noma ibole njengamapayipi ensimbi. Iphinde imelane kakhulu namakhemikhali, ama-asidi, nama-alkali atholakala enhlabathini nasemanzini, ngakho udonga lwamapayipi aluboli ngokuhamba kwesikhathi.
• Ayikwazi ukukhathala:I-HDPE iyinto eguquguqukayo. Lokhu kuyivumela ukuthi ikwazi ukumunca ngokuphephile ukucindezela, ukudlidliza, kanye nokunyakaza komhlabathi okungabangela ukuthi amapayipi aqinile njenge-PVC noma insimbi aqhekeke futhi ahluleke.
• Iyamelana nokuguguleka:Le nto iqinile kakhulu futhi ibambelela kahle ezintweni ezirhabaxa ezingase zigeleze ngaphakathi kwepayipi, njengesihlabathi noma ulwelwesi, okuyinto evamile kweminye imithombo yamanzi.
• Amalunga Angavuzi:Njengoba sixoxile, amalunga ahlanganiswe nokushisa aqinile njengepayipi. Lokhu kuqeda ukulahleka kwamanzi emalungeni avuzayo, okuyinkinga enkulu yesikhathi eside ngezinhlelo ezindala ezisebenzisa amalunga anegesi noma i-bell-and-spigot.

Isiphetho

Ipayipi le-poly limane nje liyisidlaliso se-HDPE. Liyinto engcono kakhulu ehlanganiswe nokuhlanganiswa kokushisa, hhayi iglue, enikeza impilo yesevisi efinyelela eminyakeni eyi-100 noma ngaphezulu.