Umthethomgomo wokukhetha ivalvu
(1) Ukuphepha nokuthembeka. Iimfuneko zokukhiqiza ze-Petrochemical, isitetjhi samandla, i-metallurgy nezinye iimboni zokusebenza okuragela phambili, okuzinzileko, kwesikhathi eside. Ngalokho-ke, ivalvu etlhogekako kufanele ibe nokuthembeka okuphezulu, isici esikhulu sokuphepha, angeze yabanga ukuphepha okukhulu kokukhiqiza nokulimala komuntu mathupha ngebanga lokuhluleka kwevalvu, ukuhlangabezana neemfuneko zokusebenza kwesikhathi eside kwedivayisi. Ukungezelela, yehlisa nofana ukugwema ukuvuza okubangelwa mavalvu, yenza ifemu ehlanzekileko, ephucukileko, ukusetjenziswa kwezamaphilo, ukuphepha, ukulawulwa kwebhoduluko.
(2) Ukuhlangabezana neemfuneko zokukhiqiza kwenqubo. Ivalvu kufanele ihlangabezane neendingo zokusebenzisa isilinganiso, umfutho wokusebenza, izinga lokutjhisa lokusebenza nokusetjenziswa, okubuye kube sidingo esiyisisekelo sokukhetha ivalvu. Nangabe ivalvu itlhogeka ukuvikela ukugandeleleka okukhulu nokukhupha umtjhini ongaphezu kwalokho, ivalvu yokuphepha nevalvu yokuphuphuma kuzokukhethwa; ukukhandela ivalvu yokubuya ephakathi ngesikhathi senqubo yokusebenza, yamukelaivalvu yokuhlola; ngokuzenzakalelako ukuqeda amanzi, umoya nezinye irhasi ezingaphephiko ezikhiqizwa emaphayiphini womtjhiso nemitjhini, lokha nakuvimbela ukuphunyurha komtjhiso, kuzokusetjenziswa ivalvu yokudonsa. Ukungezelela, lokha umkhakha nawugugako, kufanele kukhethwe izinto ezijamelana nokugqwala ezihle.
(3) Ukusebenza okulula, ukufakwa nokugcinwa. Ngemva kokuthi ivalvu ifakwe, umsebenzisi kufanele akghone ukukhomba kuhle indlela yevalvu, itshwayo lokuvula kanye nesibonakaliso sokutjengisa, ukwenzela bona akghone ukuqalana namaphutha ahlukahlukeneko wesikhathi esiphuthumako. Ngesikhathi esifanako, isakhiwo somhlobo wevalvu esikhethiweko kufanele sibe kude ngangokunokwenzeka, ukufakwa okulula nokugcinwa.
(4)Umnotho. Ngaphasi kwesisekelo sokuhlangabezana nokusetjenziswa okujayelekileko kwamapayipi wenqubo, amavalvu aneendleko eziphasi zokukhiqiza kanye nesakhiwo esilula kufanele akhethwe ngendlela ekungakghoneka ngayo ukwehlisa iindleko zedivayisi, ukubalekela ukulahlwa kwezinto ezisetjenziswako zamavalvu begodu ukwehlisa iindleko zokufakwa nokugcinwa kwamavalvu esigabeni sokugcina.
Amagadango wokukhetha ivalvu
Hlola ubujamo bokusebenza kwevalvu ngokuya ngokusetjenziswa kwevalvu kudivayisi nofana iphayiphi yenqubo. Ukwenza isibonelo, isilinganiso sokusebenza, umfutho wokusebenza kanye namazinga womtjhiso wokusebenza, njll.
Hlola izinga lokuvala kwevalvu ngokuya ngendlela yokusebenza, indawo yokusebenza kanye neemfuneko zomsebenzisi.
Hlola umhlobo wevalvu kanye nendlela yokutjhayela ngokuya ngenjongo yevalvu. Imihlobo efanaivalvu yevithamini eqinileko, ivalvu yokuhlola, ivalvu yesango,ivalvu yokulinganisa, njll. Indlela yokutjhayela efana ne-worm wheel worm, igezi, i-pneumatic, njll.
Ngokuya ngepharamitha yevalvu. Umfutho omncani nobukhulu obuncani bevalvu kufanele bufaniswe nepayipi lendlela efakiweko. Amanye amavalvu anquma ubukhulu bevalvu ngokuya ngezinga lokugeleza nofana ukuphuma kwevalvu ngesikhathi esilinganisiweko se-medium.
Hlola indlela yokuhlanganisa indawo yokuphela kwevalvu nepayipi ngokuya ngobujamo bokusebenza kanye nobukhulu bevalvu. Njenge-flange, ukuwelda, isiqeshana noma intambo, njll.
Hlola isakhiwo nefomu lomhlobo wevalvu ngokuya ngendawo yokufaka, isikhala sokufaka, kanye nobukhulu bevalvu. Njengevalvu yesango le-rod emnyama, ivalvu ye-angle globe, ivalvu yebholo engatjhugulukiko, njll.
Ngokuya ngobujamo bendawo, umfutho wokusebenza kanye nokutjhisa kokusebenza, ukukhetha okufaneleko nokuzwakalako kwegobolondo levalvu nezinto zangaphakathi.
Isikhathi sokuposa: Jul-05-2024
