Ngivame ukuhlangana nemibuzo yamakhasimende kanje: "Sawubona Beria, ngidinga i-valve yesango, ungasicaphunela?" Ama-valve esango ayimikhiqizo yethu, futhi sijwayelene kakhulu nawo. Isilinganiso asiyona inkinga, kodwa ngingamnika kanjani isilinganiso ngokusekelwe kulo mbuzo? Indlela yokucaphuna ingasiza amakhasimende ukuthola ama-oda, noma ukuthenga imikhiqizo amakhasimende ayidingayo? Ngokusobala, le datha yodwa ayanele. Ngalesi sikhathi, ngivame ukubuza ikhasimende ukuthi "luhlobo luni lwe-valve yesango oludingayo, luyini umfutho, ungakanani usayizi, unawo yini usayizi ophakathi nendawo kanye nokushisa?" Amanye amakhasimende azocasuka kakhulu, ngifuna nje intengo, ungibuza imibuzo eminingi, ukuthi awungochwepheshe kangakanani. Abanye abazange babuze mibuzo, futhi banginike isilinganiso nje. Kodwa, ingabe ngempela asingochwepheshe? Ngokuphambene nalokho, kungenxa yokuthi singochwepheshe futhi sinesibopho kuwe ukuthi sibuza le mibuzo. Yebo, kulula ukucaphuna, kodwa akulula ukusiza amakhasimende ukuthola ama-oda. Manje, ake sihlaziye amaphuzu okudingeka anakwe ekuphenyweni nasekucaphuneni kwama-valve esango kusukela kulezi zici ezilandelayo.
Ngokuvamile, izakhi zengcaphuno zamavalvu esango zifaka phakathi ukuma (induku evulekile noma induku emnyama), ingcindezi, ububanzi, izinto zokwakha kanye nesisindo. Kulesi sihloko, sixoxa kuphela ngamavalvu esango avaliwe kalula.
1. Ifomu: Kunezinhlobo ezimbili zamavalvu esango avaliwe kalula, ivalvu yesango lesiqu esikhuphukayo kanye nevalvu yesango lesiqu esifihliwe. Ivalvu yesango lesiqu esikhuphukayo idinga indawo enkulu yokusebenza futhi ifaneleka kakhulu kumaphrojekthi epayipi phansi. Isiqu sevalvu asihambi phezulu naphansi, ngakho-ke sifanele amaphrojekthi epayipi angaphansi komhlaba.
2. Ingcindezi: Kuma-valve esango avaliwe kamnandi, ingcindezi evame ukusetshenziswa yi-PN10-PN16, Class150. Kungakhathaliseki ukuthi ingcindezi iphakeme kangakanani, ipuleti elimbozwe ngerabha lizophazamiseka. Asincomi ukusetshenziswa kwama-valve esango avaliwe kamnandi;
3. Usayizi: Lokhu kulula kakhulu, uma ubukhulu be-caliber bukhulu, i-valve ibiza kakhulu;
4. Izinto: Ngokuphathelene nezinto, kunemininingwane eminingi. Ngokuvamile sikhuluma ngezinto ezivela kulezi zici ezilandelayo, umzimba we-valve, ipuleti le-valve, umshafti; kuma-valve esango avaliwe kahle, izinto zomzimba we-valve ezisetshenziswa kakhulu umzimba we-ductile iron. Ipuleti le-valve liyipuleti lerabha elimbozwe nge-ductile iron. Kunezinketho eziningi ze-shaft ye-valve, umshafti wensimbi yekhabhoni, umshafti we-2cr13, umshafti wensimbi engagqwali, kanti i-gland ye-valve yesango ihlukile kwi-gland yensimbi kanye ne-brass gland. Ngezinto ezimbozwayo, ngokuvamile Kunconywa ukusebenzisa amantongomane ethusi kanye nezindlala zethusi, ezingenazo izinto ezimbozwayo, futhi amantongomane ensimbi ajwayelekile kanye nezindlala zensimbi zanele.
5. Isisindo: Isisindo lapha sibhekisela esisindweni sevalvu eyodwa, okuyisici esilula ukunganakwa. Ingabe izinto ezisetshenziswayo ziyanqunywa, futhi intengo inqunywa yevalvu yesango enobukhulu obufanayo? Impendulo imbi. Ukuze kuhlangatshezwane nezidingo ezahlukene zemakethe, abakhiqizi bamavalvu benza ubukhulu bamavalvu buhluke, okuholela ekutheni noma ngabe izinto ziyafana, ubukhulu buyafana, ubude besakhiwo buyafana, ububanzi bangaphandle beflange kanye nebanga eliphakathi lembobo yeflange kuyafana, kodwa ubukhulu bomzimba wevalvu abufani, futhi isisindo sevalvu yesango enobukhulu obufanayo sizohluka kakhulu. Isibonelo, ivalvu yesango ye-DN100 efanayo, DIN F4 emnyama, sinezinhlobo eziyisithupha zesisindo, 10.5kg, 12kg, 14kg, 17kg, 19kg, 21kg, kusobala ukuthi, uma isisindo sisinda, intengo ibiza kakhulu. Njengomthengi ochwepheshe, udinga ukwazi ukuthi umkhiqizo owudingayo usetshenziswa kuluphi uhlobo lwesimo sokusebenza, ikhwalithi edingwa yikhasimende, kanye nentengo elamukelayo ikhasimende. Embonini yethu, ngokuqinisekile sifuna amakhasimende athenge imikhiqizo esezingeni eliphezulu, ukuze ukuthengisa ngemva kokuthengisa kube kuncane kakhulu. Kodwa-ke, ngenxa yesidingo semakethe, kumele sihlukanise imikhiqizo yethu ukuze sithole isabelo semakethe esengeziwe.
Ngokuhlaziya izici ezingenhla, ngikholwa ukuthi kumele ube nokuqonda okungcono kokuthenga ama-valve esango avaliwe kahle. Uma usenemibuzo mayelana nokuthenga ama-valve esango, sicela uxhumane ne-Zhongfa Valve, futhi sizokwenza konke okusemandleni ethu ukukusiza ukuxazulula izinkinga.
Isikhathi sokuthunyelwe: Disemba-28-2022