Umgomo wokukhetha amavalvu
(1) Ukuphepha nokuthembeka. Izidingo zokukhiqiza ze-Petrochemical, isiteshi sikagesi, i-metallurgy kanye nezinye izimboni ukuze kuqhutshekwe nokusebenza okuqhubekayo, okuzinzile, nomjikelezo omude. Ngakho-ke, i-valve edingekayo kufanele ibe nokuthembeka okuphezulu, isici esikhulu sokuphepha, ayikwazi ukubangela ukuphepha okukhulu kokukhiqiza kanye nokulimala komuntu siqu ngenxa yokwehluleka kwe-valve, ukuze kuhlangatshezwane nezidingo zokusebenza kwesikhathi eside kwedivayisi. Ngaphezu kwalokho, nciphisa noma ugweme ukuvuza okubangelwa ama-valve, dala ifektri ehlanzekile, ephucukile, ukuqaliswa kwezempilo, ukuphepha, nokuphathwa kwemvelo.
(2) Hlangana nezidingo zokukhiqiza inqubo. I-valve kufanele ihlangabezane nezidingo zokusebenzisa ingcindezi ephakathi nendawo, yokusebenza, izinga lokushisa lokusebenza kanye nokusetshenziswa, okubuye kube yimfuneko eyisisekelo yokukhetha i-valve. Uma i-valve idingeka ukuvikela ukucindezela ngokweqile nokukhipha i-medium eyengeziwe, i-valve yokuphepha kanye ne-valve yokugcwala kufanele kukhethwe; ukuvimbela i-valve yokubuya ephakathi ngesikhathi senqubo yokusebenza, yamukelaivalvu yokuhlola; susa ngokuzenzakalelayo amanzi anomswakama, umoya kanye negesi engavundisi ekhiqizwa epayipini lomusi kanye nemishini, ngenkathi kuvimbela ukuphuma komusi, kufanele kusetshenziswe ivalvu yokukhipha amanzi. Ngaphezu kwalokho, lapho i-medium iguga, kufanele kukhethwe izinto ezinhle zokumelana nokugqwala.
(3) Ukusebenza okulula, ukufakwa kanye nokugcinwa. Ngemva kokufakwa kwevalvu, umqhubi kufanele akwazi ukubona kahle indlela yevalvu, uphawu lokuvula kanye nesignali yenkomba, ukuze abhekane nezinkinga ezahlukene eziphuthumayo. Ngesikhathi esifanayo, isakhiwo sohlobo lwevalvu esikhethiwe kufanele sibe lula ngangokunokwenzeka, ukufakwa kanye nokugcinwa okulula.
(4) Umnotho. Ngaphansi kwesisekelo sokuhlangabezana nokusetshenziswa okuvamile kwamapayipi enqubo, amavalvu anezindleko zokukhiqiza eziphansi kakhulu kanye nesakhiwo esilula kufanele akhethwe ngangokunokwenzeka ukuze kuncishiswe izindleko zedivayisi, kugwenywe ukumoshwa kwezinto zokusetshenziswa kwamavalvu futhi kuncishiswe izindleko zokufakwa nokugcinwa kwamavalvu esigabeni esilandelayo.
Izinyathelo zokukhetha ivalvu
1. Nquma isimo sokusebenza sevalvu ngokuya ngokusetshenziswa kwevalvu kudivayisi noma epayipini lenqubo. Isibonelo, indawo yokusebenza ephakathi, ingcindezi yokusebenza kanye nezinga lokushisa lokusebenza, njll.
2. Nquma izinga lokusebenza kokuvala kwevalvu ngokuya ngendawo yokusebenza, indawo yokusebenza kanye nezidingo zomsebenzisi.
3. Nquma uhlobo lwevalvu kanye nemodi yokushayela ngokwenhloso yevalvu. Izinhlobo ezifanaivalvu yebhabhathane eqinile, ivalvu yokuhlola, ivalvu yesango,ivalvu yokulinganisa, njll. Imodi yokushayela njenge-worm wheel worm, kagesi, umoya, njll.
4. Ngokuya ngepharamitha yegama levalvu. Ingcindezi yegama kanye nosayizi ojwayelekile wevalvu kufanele kuhambisane nepayipi lenqubo elifakiwe. Amanye amavalvu anquma usayizi ojwayelekile wevalvu ngokuya ngesilinganiso sokugeleza noma ukukhishwa kwevalvu ngesikhathi esilinganiselwe sendawo ephakathi.
5. Nquma uhlobo lokuxhumanisa lwendawo yokugcina ivalvu kanye nepayipi ngokuya ngezimo zokusebenza zangempela kanye nosayizi ojwayelekile wevalvu. Njenge-flange, i-welding, i-clip noma intambo, njll.
6. Nquma isakhiwo kanye nesimo sohlobo lwevalvu ngokuya ngendawo yokufaka, isikhala sokufaka, kanye nosayizi ojwayelekile wevalvu. Njengevalvu yesango lenduku emnyama, ivalvu yembulunga ye-angle, ivalvu yebhola elungisiwe, njll.
Ngokwezici zendlela ephakathi nendawo, ingcindezi yokusebenza kanye nokushisa kokusebenza, ekukhetheni okulungile nokufanelekile kwegobolondo le-valve nezinto zangaphakathi.
Isikhathi sokuthunyelwe: Julayi-05-2024
