Ukukhetha phakathi kwe-CPVC ne-PVC kungenza noma kuphule uhlelo lwakho lwamapayipi. Ukusebenzisa izinto ezingalungile kungaholela ekuhlulekeni, ekuvuzeni, noma ngisho nasekuqhumeni okuyingozi ngaphansi kwengcindezi.

Umehluko omkhulu ukubekezelela izinga lokushisa - i-CPVC iphatha amanzi ashisayo afinyelela ku-93°C (200°F) kuyilapho i-PVC inqunyelwe ku-60°C (140°F).Amavalvu e-CPVCfuthi zibiza kancane futhi zinokumelana okungcono kwamakhemikhali ngenxa yesakhiwo sazo esine-chlorine.

Uma uqala ukubona, la ma-valve epulasitiki abukeka cishe efana. Kodwa umehluko wawo wama-molecule udala izikhala zokusebenza ezibalulekile okufanele wonke umklami nomfaki aziqonde. Emsebenzini wami namakhasimende amaningi afana noJacky, lo mehluko uvame ukuvela lapho kukhulunywa ngokusetshenziswa kwamanzi ashisayo lapho kujwayelekile khona.I-PVCizohluleka. I-chlorine eyengeziwe kuI-CPVCikunikeza izakhiwo ezithuthukisiwe ezivumela intengo yayo ephezulu ezimweni ezithile, kuyilapho i-PVC evamile isalokhu iyisinqumo esingabizi kakhulu sezinhlelo zamanzi ezijwayelekile.

Kwenzekani uma usebenzisa i-PVC esikhundleni se-CPVC?

Isikhathi sokonga izindleko singaholela ekwehlulekeni okukhulu. Ukukhetha i-PVC lapho kudingeka khona i-CPVC kuyingozi ekushintsheni, ekuqhekekeni, nasekulahlekelweni yingcindezi okuyingozi ezinhlelweni ezishisayo.

Ukusebenzisa i-PVC ezindaweni zokusetshenziswa kwamanzi ashisayo (ngaphezu kuka-60°C/140°F) kuzokwenza ipulasitiki ithambe futhi iguge, okuholela ekuvuza noma ekuhlulekeni ngokuphelele. Ezimweni ezimbi kakhulu, ivalvu ingaqhuma ngenxa yengcindezi uma ibuthakathaka ngenxa yokushisa, okungase kubangele umonakalo wamanzi kanye nezingozi zokuphepha.

Ngikhumbula icala lapho iklayenti likaJacky lafaka amavalvu e-PVC ohlelweni lomshini wokuwasha izitsha wezohwebo ukuze longe imali. Phakathi namasonto ambalwa, amavalvu aqala ukugoba nokuvuza. Izindleko zokulungisa zidlule kakhulu noma yikuphi ukonga kokuqala. Isakhiwo sama-molecule e-PVC asikwazi ukubhekana namazinga okushisa aphezulu aqhubekayo - amaketanga epulasitiki aqala ukuwohloka. Ngokungafani namapayipi ensimbi, lokhu kuthamba akubonakali kuze kube yilapho kwenzeka ukwehluleka. Yingakho imithetho yokwakha ilawula ngokuqinile lapho impahla ngayinye ingasetshenziswa khona.

Yiziphi izinzuzo zevalvu yebhola le-PVC?

Yonke iphrojekthi ibhekene nokucindezeleka kwesabelomali, kodwa awukwazi ukuyekethisa ekuthembekeni.Amavalvu e-PVCthola ibhalansi ephelele lapho izimo zivuma khona.

Amavalvu e-PVC anikeza ukusebenza kahle kakhulu kwezindleko, ukufakwa okulula, kanye nokumelana nokugqwala okuphezulu uma kuqhathaniswa nezinye izindlela zensimbi. Ashibhile ngo-50-70% kune-CPVC ngenkathi enikeza ukusebenza okuhle kakhulu ekusetshenzisweni kwamanzi abandayo.

Kumasistimu amanzi abandayo, akukho lutho olungcono kune-PVC. Ukuxhumeka kwabo kwe-solvent-weld kudala amajoyinti asheshayo nathembekile kunezinsimbi zensimbi ezinentambo, okunciphisa izindleko zomsebenzi. Ngokungafani nensimbi, azilokothi zigqwale noma zakhe ama-deposit amaminerali. Kwa-Pntek, siklame i-Amavalvu e-PVCngemizimba eqinisiwe egcina ubuqotho bayo ngisho nangemva kwamashumi eminyaka isetshenziswa. Ngemisebenzi efana nekaJackyizinhlelo zokunisela zezolimolapho izinga lokushisa lingeyona inkinga, i-PVC ihlala iyisinqumo esihlakaniphile kakhulu.

Kungani i-CPVC ingasasetshenziswa?

Ungase uzwe izimangalo zokuthi i-CPVC isiphelelwa yisikhathi, kodwa iqiniso licacile. Ukuthuthuka kwezinto ezibonakalayo akuziqedanga izinzuzo zayo eziyingqayizivele.

I-CPVC isasetshenziswa kabanzi kodwa ithathelwe indawo yi-PEX nezinye izinto kwezinye izinhlelo zokusebenza zokuhlala ngenxa yezindleko. Kodwa-ke, isabalulekile ezinhlelweni zamanzi ashisayo ezentengiselwano lapho izinga layo lokushisa eliphezulu (93°C/200°F) lidlula ezinye izindlela.

Nakuba i-PEX isithole ukuthandwa kwamapayipi asekhaya, i-CPVC igcina izikhundla eziqinile ezindaweni ezintathu ezibalulekile:

1. Izakhiwo zezentengiselwano ezinezinhlelo zamanzi ashisayo eziphakathi
2. Izicelo zezimboni ezidingaukumelana namakhemikhali
3. Amaphrojekthi okuvuselela kabusha ahambisana nengqalasizinda ye-CPVC ekhona

Kulezi zimo, ikhono le-CPVC lokusingatha kokubili ukushisa kanye nengcindezi ngaphandle kwezinkinga zokugqwala kwensimbi lenza ingabi yinto engathathelwa indawo. Umbono wokuthi iyanyamalala umayelana kakhulu nokushintsha kwemakethe yezindlu kunokungasasebenzi kobuchwepheshe.

Ingabe ukufakwa kwe-PVC kanye ne-CPVC kuyahambisana?

Ukuxuba izinto kubonakala kuyindlela elula yokunqamulela, kodwa ukuhlanganiswa okungafanele kudala amaphuzu abuthakathaka abeka engcupheni izinhlelo zonke.

Cha, azihambisani ngqo. Nakuba zombili zisebenzisa ukushisela kwe-solvent, zidinga ama-cement ahlukene (i-PVC cement ngeke ibophe i-CPVC kahle futhi okuphambene nalokho). Kodwa-ke, kukhona ama-transition fittings atholakalayo ukuze axhume ngokuphephile izinto ezimbili.

Umehluko wokwakheka kwamakhemikhali usho ukuthi ama-solvent cement awo awakwazi ukushintshaniswa:

• Usimende we-PVC uncibilikisa ubuso be-PVC ukuze buhlangane
• Usimende we-CPVC uqine kakhulu uma kubhekwa isakhiwo sawo esiqinile

Ukuzama ukuphoqelela ukuhambisana kuholela emalungeni abuthakathaka angase aphumelele ekuhlolweni kwengcindezi ekuqaleni kodwa ahluleke ngokuhamba kwesikhathi. Kwa-Pntek, sincoma njalo:

1. Ukusebenzisa usimende ofanele uhlobo ngalunye lwezinto zokwakha
2. Ukufaka ama-transition fittings afanele lapho kudingeka ukuxhumeka
3. Ukulebula ngokusobala zonke izingxenye ukuvimbela ukuxubana

Isiphetho

Amavalvu ebhola e-PVC kanye ne-CPVC anendima ehlukene kodwa ebaluleke ngokulinganayo—i-PVC yezinhlelo zamanzi abandayo ezingabizi kakhulu kanye ne-CPVC yezinhlelo zamanzi ashisayo ezidingakalayo. Ukukhetha kahle kuqinisekisa ukusebenza okuphephile nokuhlala isikhathi eside. Njalo fanisa ivalvu nezidingo ezithile zokushisa kanye namakhemikhali zesistimu yakho ukuze uthole imiphumela emihle kakhulu.