Yenziwe ngentsimbi eshayinayo izinto
Ngelixa ukhetho olubiza kakhulu kunobhedu, isinyithi sisinyithi esihlala ixesha elide, esomeleleyo. Ngelixa ubhedu ingumxube wobhedu, intsimbi engenasici yintsimbi exutywe ne-chromium kunye ne-nickel.
Uhlobo lwento leyo ithetha ukuba ezi zivalo ziyakwazi ukumelana nokuvuza. Isinyithi siyakwazi ukusebenza kumaqondo obushushu angaphezulu kobhedu kwaye sihlala ixesha elide. Ivalves zensimbi ezingenasici zezona zikhetho zibalaseleyo zoxinzelelo oluphezulu kunye neemeko zobushushu. Zizinto ezintle zokumelana nokubola.
I-316 yentsimbi engenasici, ingakumbi umhlwa ngenxa yokuba ine-nickel eninzi kwaye ine-molybdenum. Le indibanisela yentsimbi, i-nickel kunye ne-molybdenum yenza iivalves ingakumbi ezinganyangekiyo kwii-chloride kwaye ziluncedo kakhulu kwiindawo zaselwandle.
Izinto zobhedu
I-Brass yintsimbi yobhedu ethetha ukuba yomelele kuneplastiki. La mandla ongezelelweyo ayazenza, nangona ingezizo ezona ndlela zibiza kakhulu kwiivelufa, ezibiza kakhulu kunePVV okanye iipvaluva zevalufa.
I-Brass ngumxube wobhedu kunye ne-zinc, kwaye ngamanye amaxesha nezinye izinyithi. Ngenxa yobume bayo njengentsimbi ethambileyo, iyakwazi ukumelana nokubola kakhulu ngokuchasene nezivalo zeplastiki.
Iimveliso zeBrass zinexabiso elincinci lokukhokela. Uninzi lwexesha iimveliso zobhedu zenziwe ngaphantsi kwe-2% ekhokelayo, nangona kunjalo oku kubangela ukuthandabuza kwabaninzi. Ngapha koko, i-FDA ayivumi ukuba kusetyenziswe iivalve zobhedu ngaphandle kokuba ziqinisekisiwe ukuba azikho lead. Sebenzisa ukuqonda xa ukhetha izinto zevalve zeprojekthi yakho elandelayo.
Umehluko phakathi kwentsimbi engenasici kunye nobhedu
Olu thelekiso lwezivalo zentsimbi ezingenasici kunye neevalvu zobhedu lusinike inani lokwahluka okubalulekileyo ekufuneka sikuqwalasele.
Iindleko: Iivalvu zensimbi engenasici zibiza kakhulu kunezivalo zobhedu. Ukuba zombini ezi zinto ziya kuhlangabezana neemfuno zeprojekthi kunye nohlahlo-lwabiwo mali luxhalabisa, cinga ngokusebenzisa iivevhe zobhedu ukugcina imali.
Ukuvunywa kwe-FDA: I-FDA ayizamkeli izivalo zobhedu ngaphandle kokuba ziqinisekisiwe ukuba azinazikhokelo, nto leyo ebenza bakhethe kakubi ekusetyenzisweni kweshishini lokutya. Insimbi engenasici, nangona kunjalo, yamkelwe yi-FDA ukuba isetyenziswe kolu shishino.
Ukuxhathisa umhlwa: I-Brass iyakwazi ukumelana nokubola kuneplastikhi. Nangona kunjalo, i-stainless steel iseyeyona isemgangathweni kwisebe lokumelana nokubola, ngakumbi kwiindawo zaselwandle.
Ixesha Post: Jul-19-2021