Udinga ukuthenga ama-valve e-PVC ephrojekthi, kodwa ikhathalogi iyamangaza. Ibhola, isheke, uvemvane, i-diaphragm—ukukhetha okungalungile kusho uhlelo oluvuzayo, oluhlulekayo, noma olungasebenzi kahle.

Izinhlobo eziyinhloko zamavalvu e-PVC zihlukaniswa ngemisebenzi yazo: amavalvu ebhola okulawula ukuvala/ukuvula, amavalvu okuhlola ukuvimbela ukugeleza kwamanzi emuva, amavalvu ebhabhathane okuvimba amapayipi amakhulu, kanye namavalvu e-diaphragm okuphatha uketshezi olubolayo noma oluhlanzekile.

Lona umbuzo engivame ukuwuxoxa nabalingani bami, okuhlanganisa noBudi, umphathi wokuthenga ophezulu e-Indonesia. Amakhasimende akhe, kusukela kosonkontileka kuya kubathengisi, kudingeka azi ukuthi athola ithuluzi elifanele lomsebenzi.uhlelo lwamapayipiinamandla kuphela njengengxenye yayo ebuthakathaka kakhulu, futhi ukukhetha okulungileuhlobo lwevalvukuyisinyathelo sokuqala sokwakha uhlelo oluthembekile noluhlala isikhathi eside. Ukuqonda lo mehluko akulona nje ulwazi lobuchwepheshe; kuyisisekelo sephrojekthi ephumelelayo.

Ingabe kunezinhlobo ezahlukene zamavalvu e-PCV?

Uzwa igama elithi “i-PVC valve” futhi ungase ucabange ukuthi umkhiqizo owodwa, ojwayelekile. Lokhu kucabanga kungakuholela ekutheni ufake i-valve engakwazi ukusingatha ingcindezi noma ukwenza umsebenzi owudingayo.

Yebo, kunezinhlobo eziningi zamavalvu e-PVC, ngalinye linendlela yangaphakathi ehlukile eyenzelwe umsebenzi othile. Ezivame kakhulu ngezokuqala/ukuyeka ukugeleza (amavalvu ebhola) kanye nokuvimbela ngokuzenzakalela ukugeleza okuphambene (amavalvu okuhlola).

Ukucabanga ukuthi wonke ama-valve e-PVC afana kuyiphutha elivamile. Eqinisweni, ingxenye ethi “PVC” ichaza nje izinto i-valve eyenziwe ngazo—ipulasitiki eqinile, engagqwali. Ingxenye ethi “valve” ichaza umsebenzi wayo. Ukuze sisize uBudi nethimba lakhe baqondise amakhasimende abo, siwahlukanisa ngomsebenzi wawo oyinhloko. Lokhu kuhlukaniswa okulula kusiza wonke umuntu ukukhetha umkhiqizo ofanele ngokuzethemba.

Nasi ukuhlukaniswa okuyisisekelo kwezinhlobo ezivame kakhulu ozohlangana nazo ekuphathweni kwamanzi:

Yiziphi izinhlobo ezine ze-PVC?

Ubona amalebula ahlukene njenge-PVC-U kanye ne-C-PVC bese uzibuza ukuthi ayabalulekile yini. Ukusebenzisa ivalvu ejwayelekile entanjeni yamanzi ashisayo ngoba ubungazi ukuthi umehluko ungabangela ukwehluleka okukhulu.

Lo mbuzo umayelana nezinto zepulasitiki, hhayi uhlobo lwevalvu. Izinto ezine ezivamile zomndeni we-PVC yi-PVC-U (ejwayelekile, yamanzi abandayo), i-C-PVC (yamanzi ashisayo), i-PVC-O (enamandla aphezulu), kanye ne-M-PVC (eguquliwe ngomthelela).

Lona umbuzo omuhle kakhulu ngoba ufinyelela enhliziyweni yekhwalithi yomkhiqizo kanye nokuphepha kokusetshenziswa. Kulula ukuhlanganisa izinhlobo zamavalvu nezinhlobo zezinto zokwakha. Kwa-Pntek, sikholelwa ukuthi umlingani ofundile ungumlingani ophumelelayo, ngakho-ke ukucacisa lokhu kubalulekile. Izinto ezenziwe ngazo ivalvu yakho zinquma imikhawulo yokushisa kwayo, isilinganiso sokucindezela, kanye nokumelana namakhemikhali.

I-PVC-U (i-Polyvinyl Chloride engafakwanga ipulasitiki)

Lolu uhlobo oluvame kakhulu lwe-PVC olusetshenziswa kumapayipi, izinto zokufaka, nama-valve eNyakatho Melika, eYurophu nase-Asia. Luqinile, lungabizi kakhulu, futhi lumelana kakhulu namakhemikhali ahlukahlukene. Luyindinganiso yokusetshenziswa kwamanzi abandayo. Iningi lama-valve ethu ebhola e-Pntek nama-valve okuhlola ama-oda e-Budi enziwe nge-PVC-U yezinga eliphezulu.

I-C-PVC (i-Chlorinated Polyvinyl Chloride)

I-C-PVC idlula enkambisweni eyengeziwe ye-chlorination. Lolu shintsho olulula lukhulisa kakhulu ukumelana kwayo nokushisa. Nakuba i-PVC-U kufanele isetshenziswe kuphela kufika ku-60°C (140°F), i-C-PVC ingaphatha amazinga okushisa afika ku-93°C (200°F). Kumelwe usebenzise amavalvu e-C-PVC emigqeni yamanzi ashisayo.

Ezinye Izinhlobo

I-PVC-O (Eqondiswe) kanye ne-M-PVC (Eguquliwe) azivamile kakhulu kuma-valve kodwa zivame kakhulu kumapayipi okucindezela akhethekile, kodwa kuhle ukwazi ukuthi zikhona. Zenzelwe amazinga aphezulu okucindezela kanye namandla angcono okushaya.

Yiziphi izinhlobo eziyisithupha eziyinhloko zama-valve?

Wakha uhlelo oluyinkimbinkimbi futhi udinga okungaphezu nje kwevalvu elula yokuvula/yokuvala. Ukubona amagama anjengelithi “Globe” noma “Gate” kungaba yinto edidayo uma usebenza kakhulu ngamavalvu ebhola e-PVC.

Imindeni eyisithupha eyinhloko yama-valve asebenzayo yi-Ball, Gate, Globe, Check, Butterfly, kanye ne-Diaphragm valves. Iningi lawo litholakala nge-PVC ukuze liphathe izinhlelo zokusebenza lapho ama-valve ensimbi angagqwala noma abize kakhulu.

Nakuba sigxila ezinhlotsheni ze-PVC ezivame kakhulu, ukuqonda umndeni wonke wama-valve kukusiza wazi ukuthi kungani ama-valve athile ekhethwa kunezinye. Amanye ayizindinganiso zemboni, kanti amanye enzelwe imisebenzi ethile kakhulu. Lolu lwazi olubanzi lusiza ithimba likaBudi ukuphendula ngisho nemibuzo yamakhasimende enemininingwane eminingi.

Ukuphathwa kwamanzi okuvamile,amavalvu ebhola, ama-valve okuhlola, futhiamavalvu ebhabhathaneyizinhlobo ze-PVC ezibaluleke kakhulu okufanele uzazi.

Yiziphi izinhlobo ezahlukene zamavalvu okuhlola e-PVC?

Udinga ivalvu yokuhlola ukuvimbela ukugeleza kwamanzi emuva, kodwa ubona izinketho ezifana nokuthi “swing,” “ball,” kanye “spring.” Ukufaka engalungile kungaholela ekungasebenzini kahle, isando samanzi, noma ivalvu ingasebenzi nhlobo.

Izinhlobo eziyinhloko zamavalvu okuhlola e-PVC ukuhlola ukujiya, ukuhlola ibhola, kanye nokuhlola intwasahlobo. Ngayinye isebenzisa indlela ehlukile yokungasebenzi ukuze imise ukugeleza okubuyela emuva futhi ifanelekela ukuqondiswa kwamapayipi okuhlukile kanye nezimo zokugeleza.

I-valve yokuhlola iyisivikelo esithule sohlelo lwakho, esisebenza ngokuzenzakalelayo ngaphandle kwezibambo noma amandla angaphandle. Kodwa akuwona wonke amasivikelo asebenza ngendlela efanayo. Ukukhetha efanele kubalulekile ekuvikelweni kwephampu kanye nobuqotho bohlelo. Lena imininingwane engihlala ngiyigcizelela kuBudi, njengoba ithinta ngqo ukuthembeka kwesikhathi eside kokufakwa kwamakhasimende akhe.

I-PVC Swing Check Valve

Lolu uhlobo olulula kakhulu. Lune-hinged flap (noma i-disc) evuleka ngokugeleza kwamanzi. Lapho ukugeleza kuma noma kubuyela emuva, amandla adonsela phansi kanye nokucindezela kwangemuva kushintsha i-flap ivaleke esihlalweni sayo. Zisebenza kahle kakhulu kumapayipi avundlile noma kumapayipi aqondile anokugeleza okuphezulu.

I-PVC Ball Check Valve

Lona uhlobo lwethu olukhethekile kwa-Pntek. Ibhola eliyindilinga lihlala ekamelweni. Ukugeleza phambili kusunduza ibhola liphume endleleni yokugeleza. Uma ukugeleza kubuyela emuva, kusunduza ibhola libuyele esihlalweni, kudala uphawu oluqinile. Zithembeke kakhulu, zingafakwa ziqonde phezulu noma zivundlile, futhi azinazo izihibe noma izipilingi ezigugayo.

I-PVC Spring Check Valve

Lolu hlobo lusebenzisa isiphethu ukusiza ukuvala ivalvu ngokushesha lapho ukugeleza kuma. Lesi senzo sokuvala okusheshayo sihle kakhulu ekuvimbeleni isando samanzi—igagasi elilimazayo elidalwa ukuma okungazelelwe kokugeleza. Zingafakwa kunoma yikuphi ukuqondiswa.

Isiphetho

Ukukhetha ivalvu ye-PVC efanele kusho ukuqonda uhlobo lwayo—ibhola lokulawula, ukuhlola ukugeleza kwayo emuva—kanye nezinto zepulasitiki uqobo. Lolu lwazi luqinisekisa ukuthembeka kohlelo, luvimbela ukwehluleka, futhi lwakha ukwethenjwa kwamakhasimende.