Ukukhetha phakathi kwe-CPVC kunye ne-PVC kunokwenza okanye kuphule inkqubo yakho yemibhobho. Ukusebenzisa izinto ezingalunganga kunokubangela ukungaphumeleli, ukuvuza, okanye ukugqabhuka okuyingozi xa uphantsi koxinzelelo.

Umahluko ophambili kukunyamezela ubushushu – i-CPVC iphatha amanzi ashushu ukuya kuthi ga kwi-93°C (200°F) ngelixa i-PVC ilinganiselwe kwi-60°C (140°F).Iivalvu zeCPVCzibiza kancinci kwaye zinokumelana okungcono kweekhemikhali ngenxa yesakhiwo sazo esine-chlorine.

Ekuqaleni, ezi valve zeplastiki zifana kakhulu. Kodwa umahluko wazo weemolekyuli udala izikhewu ezibalulekileyo zokusebenza ekufuneka ziqondwe ngumntu wonke oyila kunye nomfaki. Kumsebenzi wam nabathengi abaninzi abanjengoJacky, lo mahluko udla ngokuvela xa usebenza ngamanzi ashushu apho kuqhelekileyo khona.I-PVCiza kusilela. I-chlorine eyongezelelweyo kwiI-CPVCinika iipropati eziphucukileyo ezithethelela ixabiso layo eliphezulu kwiimeko ezithile, ngelixa i-PVC eqhelekileyo iselukhetho olungabizi kakhulu kwiinkqubo zamanzi ezisemgangathweni.

Kuza kwenzeka ntoni ukuba usebenzisa i-PVC endaweni ye-CPVC?

Umzuzu wokonga iindleko unokukhokelela ekusileleni okukhulu. Ukukhetha i-PVC apho kufuneka khona i-CPVC kuyingozi ekuqhekekeni, ekuqhekekeni, nasekulahlekeni koxinzelelo oluyingozi kwiinkqubo ezishushu.

Ukusebenzisa i-PVC kwiindawo ezishushu (ezingaphezulu kwama-60°C/140°F) kuya kubangela ukuba iplastiki ithambe kwaye iguquguquke, nto leyo ekhokelela ekuvuzeni okanye ekuphelelweni ngokupheleleyo. Kwiimeko ezigqithisileyo, ivalvu ingaqhuma ngenxa yoxinzelelo xa ibuthathaka bubushushu, nto leyo enokubangela umonakalo wamanzi kunye neengozi zokhuseleko.

Ndikhumbula ityala apho umthengi kaJacky wafaka iivalvu zePVC kwinkqubo yokuhlamba izitya yorhwebo ukuze onge imali. Kwiiveki ezimbalwa, iivalvu zaqala ukugoba nokuvuza. Iindleko zokulungisa zidlule kakhulu kuyo nayiphi na imali eyongiweyo yokuqala. Ulwakhiwo lweemolekyuli zePVC alukwazi ukumelana nobushushu obuphezulu obuhlala buhleli - imixokelelwane yeplastiki iqala ukuwohloka. Ngokungafaniyo nemibhobho yesinyithi, oku kuthamba akubonakali de kube kwenzekile ukungasebenzi kakuhle. Yiyo loo nto imithetho yokwakha ilawula ngokungqongqo apho isixhobo ngasinye singasetyenziswa khona.

Ziziphi iingenelo zevalvu yebhola yePVC?

Yonke iprojekthi ijongene noxinzelelo lwebhajethi, kodwa awunakuyityeshela into yokuthembeka.Iivalvu zePVClungelelanisa kakuhle apho iimeko zivuma khona.

Iivalvu zePVC zibonelela ngexabiso elingcono kakhulu, kulula ukuzifakela, kunye nokumelana nokugqwala okuphezulu xa kuthelekiswa nezinye iindlela zesinyithi. Zixabiso eliphantsi ngama-50-70% kune-CPVC ngelixa zibonelela ngokusebenza okuhle kakhulu kwiindawo ezibandayo.

Kwiinkqubo zamanzi abandayo, akukho xabiso lingcono kunePVC. Uqhagamshelo lwazo lwe-solvent-weld ludala iijoyinti ezikhawulezayo nezithembekileyo kunezifakelo zesinyithi ezinemisonto, nto leyo enciphisa iindleko zomsebenzi. Ngokungafaniyo nesinyithi, azidli okanye zakha iidiphozithi zezimbiwa. KwaPntek, siyila i-intanethi yethu.Iivalvu zePVCngemizimba eqinisiweyo egcina ukuthembeka kwayo nangona sele kudlule amashumi eminyaka isetyenziswa. Kwiiprojekthi ezifana nekaJackyiinkqubo zokunkcenkceshela kwezolimoapho ubushushu bungeyongxaki, i-PVC ihlala ilukhetho olukrelekrele.

Kutheni i-CPVC ingasasetyenziswa?

Usenokuva izibhengezo zokuba i-CPVC ayisekho semthethweni, kodwa inyani icacile. Uphuhliso lwezinto eziphathekayo aluzange luzisuse iingenelo zayo ezikhethekileyo.

I-CPVC isasetyenziswa kakhulu kodwa ithathelwe indawo yi-PEX kunye nezinye izinto kwezinye iindawo zokuhlala ngenxa yeendleko. Nangona kunjalo, isabalulekile kwiinkqubo zamanzi ashushu zorhwebo apho izinga layo lobushushu eliphezulu (93°C/200°F) lidlula ezinye iindlela.

Nangona i-PEX ifumene udumo kwimibhobho yamanzi emakhaya, i-CPVC igcina izikhundla eziqinileyo kwiindawo ezintathu eziphambili:

1. Izakhiwo zorhwebo ezineenkqubo zamanzi ashushu ezisetyenziswa kwindawo enye
2. Izicelo zoshishino ezifunaukumelana neekhemikhali
3. Iiprojekthi zokulungisa izinto ezintsha ezihambelana neziseko zophuhliso zeCPVC ezikhoyo

Kwezi meko, ukukwazi kwe-CPVC ukusingatha ubushushu kunye noxinzelelo ngaphandle kweengxaki zokugqwala kwesinyithi kwenza ukuba ingathathelwa indawo. Ingcamango yokuba iyanyamalala imalunga notshintsho lwemarike yezindlu kunokuba iphelelwe lixesha lobuchwephesha.

Ngaba izixhobo zePVC kunye neCPVC ziyahambelana?

Ukuxuba izinto kubonakala ngathi yindlela elula, kodwa ukuhlanganiswa okungafanelekanga kudala iindawo ezibuthathaka ezibeka emngciphekweni iinkqubo ziphela.

Hayi, azihambelani ngokuthe ngqo. Nangona zombini zisebenzisa i-solvent welding, zifuna ii-cement ezahlukeneyo (isamente ye-PVC ayizukuyibopha kakuhle i-CPVC kwaye ngokuchaseneyo). Nangona kunjalo, kukho izixhobo zokutshintsha ezikhoyo ukuze zidibanise ngokukhuselekileyo ezi zinto zimbini.

Umahluko kwiikhemikhali ubonisa ukuba i-solvent cement zabo azikwazi ukutshintshaniswa:

• Isamente yePVC iyanyibilikisa umphezulu wePVC ukuze idityaniswe
• Isamente ye-CPVC inamandla ngakumbi xa ithelekiswa nesakhiwo sayo esiqinileyo

Ukuzama ukunyanzela ukuhambelana kukhokelela ekubeni amalungu abuthathaka anokuthi aphumelele uvavanyo loxinzelelo ekuqaleni kodwa angaphumeleli ngokuhamba kwexesha. Apha ePntek, sisoloko sicebisa:

1. Ukusebenzisa isamente echanekileyo kuhlobo ngalunye lwento
2. Ukufakela izixhobo zokutshintsha ezifanelekileyo xa kufuneka uqhagamshelo
3. Ukulebhelisha ngokucacileyo zonke izinto ukuthintela ukudibana kwezinto

Isiphelo

Iivalvu zebhola zePVC kunye neCPVC zisebenza indima eyahlukileyo kodwa ebaluleke ngokulinganayo—iPVC kwiinkqubo zamanzi abandayo ezingabizi kakhulu kunye neCPVC ekusebenziseni amanzi ashushu ngokufuna imali. Ukukhetha ngokuchanekileyo kuqinisekisa ukusebenza okukhuselekileyo nokuhlala ixesha elide. Soloko ufanisa ivalvu neemfuno ezithile zobushushu kunye neekhemikhali zenkqubo yakho ukuze ufumane iziphumo ezilungileyo.