Insimbi engagqwali impahla
Ngenkathi inketho ebiza kakhulu kunethusi, insimbi iyinsimbi ehlala isikhathi eside, eqinisayo. Ngenkathi ithusi liyingxubevange yethusi, insimbi engagqwali iyinhlanganisela yensimbi exutshwe ne-chromium ne-nickel.
Ubunjalo bokubalulekile kusho ukuthi la ma-valve akwazi ukumelana kahle nokuvuza. Insimbi nayo iyakwazi ukusebenza emazingeni okushisa amaningi ukwedlula ithusi futhi ivame ukuhlala isikhathi eside. Amaphayiphu wensimbi angenazinsimbi yizona ongakhetha kuzo ezimweni zokucindezela nokushisa okuphezulu. Futhi ziyizinto ezinhle zokumelana nokugqwala.
Insimbi engenasici 316, imelana nokugqwala ikakhulukazi ngoba ine-nickel eningi futhi iqukethe i-molybdenum. Le nhlanganisela yensimbi, i-nickel ne-molybdenum yenza ama-valve amelane ikakhulukazi nama-chloride futhi alusizo kakhulu ezindaweni zasolwandle.
Izinto zethusi
I-Brass ingxubevange yethusi okusho ukuthi inamandla kuneplastiki. La mandla angeziwe abenza, yize kungeyona inketho ebiza kakhulu ye-valve, ebiza kakhulu kune-PVC noma ama-valve epulasitiki.
I-Brass iyinhlanganisela yethusi ne-zinc, futhi kwesinye isikhathi nezinye izinsimbi. Ngenxa yobunjalo bayo njengensimbi ethambile, iyakwazi ukumelana nokugqwala kahle kakhulu uma kuqhathaniswa nama-valve epulasitiki.
Imikhiqizo yethusi iqukethe inani elincane lomthofu. Isikhathi esiningi imikhiqizo yethusi yakhiwa ngaphansi kokuhola okungu-2%, kepha lokhu kubangela ukungabaza kwabaningi. Eqinisweni, i-FDA ayivumi ukuthi kusetshenziswe ama-valve wethusi ngaphandle kokuthi aqinisekisiwe ukuthi awunawo umkhondo. Sebenzisa ukuqonda lapho ukhetha okokusebenza kwe-valve kuphrojekthi yakho elandelayo.
Umehluko phakathi kwensimbi engagqwali nethusi
Lokhu kuqhathaniswa kwamaphayiphu wensimbi engagqwali namaphayiphu ethusi kusinikeze umehluko omningi obalulekile okufanele siwubheke.
Izindleko: Amaphayiphu wensimbi angenasici abiza kakhulu kunama-valve wethusi. Uma zombili izinto zizohlangabezana nezidingo zephrojekthi yakho nesabelomali kuyinkinga, cabanga ukusebenzisa ama-valve wethusi ukonga emalini.
Ukuvunyelwa kwe-FDA: I-FDA ayiwamukeli ama-valve wethusi ngaphandle kokuthi aqinisekisiwe ukuthi awunawo umkhondo, okwenza kube inketho embi yokusetshenziswa embonini yokudla. Insimbi engagqwali, noma kunjalo, ivunywa yi-FDA ukuthi isetshenziswe embonini.
Ukumelana Nokugqwala: I-Brass iyakwazi ukumelana nokugqwala kangcono kunepulasitiki. Kodwa-ke, insimbi engagqwali iseyiyona ehamba phambili emnyangweni wokumelana nokugqwala, ikakhulukazi ezindaweni zasolwandle.
Isikhathi Iposi: Jul-19-2021