Indlela yokukhetha okulungilei-butterfly valve manualimpahla yokuvala?
Amavalvu ovemvane okwenziwa ngesandla awuhlobo olujwayelekile lwamavalvu, ikakhulukazi asetshenziselwa ukulawula ukugeleza nokulawula uketshezi kumapayipi. Izinto zokuvala zidlala indima ebalulekile ekusebenzeni kokuvala kwe-valve ye-butterfly eshintshwayo, ngakho-ke lapho ukhetha i-valve, kuyadingeka ukuqonda ukusebenza nobubanzi bokusetshenziswa kwezinto ezihlukahlukene zokuvala ukuze ukhethe into efanelekile yokuvala i-valve butterfly.
1. Irabha ye-Fluorine (FKM)
Irabha ye-fluorine inokumelana namakhemikhali okuhle kanye nezindawo zokushisa okuphezulu, futhi ingakha uphawu olungcono emazingeni okushisa aphansi. Ifanele imidiya ewuketshezi equkethe ama-asidi, ama-alkali, amafutha nama-oxidants. Kodwa-ke, impahla yokuvala irabha ye-fluorine ibiza kakhulu futhi ayifanele ukusetshenziswa ngaphansi kwezimo ze-steam.
2.NBR irabha
Izinzuzo zezinto zokuvala irabha ze-NBR ziyinani eliphansi nokusebenza okuzinzile. Kodwa-ke, ukumelana kwayo nokushisa okuphezulu, ukumelana ne-oxidation kanye nokumelana nokugqwala kubuthakathaka, ikakhulukazi kulungele izicelo zokucindezela ezincane neziphakathi nendawo ezifana namanzi, uwoyela, umusi kanye ne-metal brine.
3. Irabha ye-Neoprene (CR)
I-Neoprene inokumelana nowoyela okuhle kanye nezindawo zokulwa nokuguga, futhi ingasetshenziswa phezu kwebanga lokushisa elibanzi. Ifanele uwoyela, ikhabhoni ekloriniwe nezinye izincibilikisi endaweni emaphakathi, kodwa ayifanele izinga lokushisa eliphezulu lendawo yesitimu.
4. Irabha Ye-Silicone (Si)
Izinto zokuvala zenjoloba ye-Silicone inokumelana okuhle nokushisa okuphezulu, ukumelana nemisebe kanye nokushaqeka nokumelana nokuqhekeka, ifanele ukubekwa uphawu endaweni yokushisa ephezulu. Kodwa-ke, ukuqina nokumelana nokukhala kwerabha ye-silicone endaweni yokushisa ephansi kubi kakhulu.
5.PTFE
Inzuzo ye-PTFE ukuthi inokumelana nokugqwala okuhle nokumelana nezinga lokushisa eliphezulu, kodwa ukunwebeka kwayo nokumelana nokugqoka akukuhle, futhi ayifaneleki ukusetshenziswa ezindaweni eziwuketshezi ezinamazinga okugeleza okusheshayo.
6. I-Polyimide (PI)
I-Polyimide iwuhlobo lokushisa okuphakeme kanye nezinto zepulasitiki ezinamandla amakhulu, ezisebenza kahle ekushiseni okuphezulu kanye nokumelana nokugqwala kwamakhemikhali okuhle kakhulu, okulungele izinga lokushisa eliphezulu kanye nemvelo yokucindezela okuphezulu njengento yokuvala uphawu.
Lapho ukhetha into yokuvala i-butterfly valve, kuyadingeka ukuthi ucabangele uhlobo loketshezi olusepayipini, izinga lokugeleza, izinga lokushisa, ingcindezi nezinye izici, bese ukhetha into efanele yokuvala ukuze kuqinisekiswe ukusebenza okuzinzile kanye nokusebenza okuphephile kwebhukwana. uvemvane valve. Kubalulekile ukuqaphela ukuthi ngaphambi kokusebenzisa noma iyiphi into yokuvala uphawu, kunconywa ukuhlola ukuqina kwayo nokusebenza kokuvala endaweni yoketshezi okuhlosiwe.
Isikhathi sokuthumela: Jun-15-2023
