Izinyathelo zokukhetha i-valve:
1. Chaza ukusetshenziswa kwe-valve kumishini noma idivayisi, thola izimo zokusebenza ze-valve: i-medium efanelekile, ingcindezi yokusebenza, izinga lokushisa lokusebenza nokunye.
2. Thola i-diameter yegama kanye nemodi yokuxhuma yepayipi exhuma ne-valve: i-flange, intambo, i-welding, ijazi, ukulungiswa okusheshayo, njll.
3. Thola indlela yokusebenzisa i-valve: i-manual, i-electric, i-electromagnetic, i-pneumatic noma i-hydraulic, ukuxhuma kukagesi noma i-hydraulic, njll.
4. Ngokwesisetshenziswa esidluliswa ngamapayipi, ingcindezi yokusebenza kanye nezinga lokushisa lokusebenza, izinto zokwakha zegobolondo le-valve nezingxenye zangaphakathi ziyakhethwa: insimbi empunga, insimbi egayiwe ethambile, insimbi eyi-nodular cast, i-carbon steel, i-alloy steel, insimbi engagqwali engamelana ne-asidi. , ingxubevange yethusi, njll.
5. Khetha izinhlobo zama-valve: ama-valve avaliwe, ama-valve alawulayo, ama-valve okuphepha, njll.
6. Thola izinhlobo zama-valve: ama-valve esango, ama-globe valves, ama-valve amabhola, ama-butterfly valves, ama-throttle valves, ama-valve okuphepha, ama-valve okunciphisa ukucindezela, izicupho ze-steam, njll.
7. Thola imingcele yama-valve: Kuma-valve azenzakalelayo, ukumelana nokugeleza okuvumelekile, amandla okuphuma, ukucindezela emuva, njll. kunqunywa kuqala ngokwezidingo ezihlukene, bese kunqunywa ububanzi obuncane bepayipi kanye nobubanzi bembobo yesihlalo se-valve.
8. Thola imingcele yejometri ye-valve ekhethiwe: ubude besakhiwo, ifomu lokuxhuma i-flange nobukhulu, isiqondiso sokuphakama kwe-valve ngemva kokuvula nokuvala, ubukhulu bembobo ye-bolt kanye nenombolo yokuxhumana, ubukhulu bomumo we-valve yonke, njll.
9.Sebenzisa ulwazi olukhona: Ikhathalogi yomkhiqizo we-valve, amasampula omkhiqizo we-valve, njll. ukuze ukhethe imikhiqizo efanelekile yamavalvu.
Isisekelo sokukhetha i-valve:
1. Ukusetshenziswa, izimo zokusebenza kanye nemodi yokulawula ye-valve ekhethiwe.
2. Izakhiwo zendlela yokusebenza: ingcindezi yokusebenza, izinga lokushisa lokusebenza, ukusebenza kokugqwala, kungakhathaliseki ukuthi izinhlayiya eziqinile ziqukethwe, kungakhathaliseki ukuthi i-medium inobuthi, kungakhathaliseki ukuthi iyavutha, i-explosive medium, i-viscosity ephakathi nokunye.
3. Izidingo zezici ze-valve fluid: ukumelana nokugeleza, umthamo wokukhipha, izici zokugeleza, ibanga lokuvala, njll.
4. Ubukhulu bokufaka nezidingo zobukhulu bohlaka: i-diameter yegama, imodi yokuxhuma enepayipi nobukhulu bokuxhuma, ubukhulu bohlaka noma ukulinganiselwa kwesisindo, njll.
5. Izidingo ezengeziwe zokuthembeka kwemikhiqizo yamavalvu, impilo yesevisi kanye nokusebenza kokuvikela ukuqhuma kwamadivayisi kagesi. (Ukunakwa kufanele kukhokhwe lapho kukhethwa amapharamitha: uma i-valve izosetshenziselwa izinjongo zokulawula, imingcele eyengeziwe kufanele inqunywe kanje: indlela yokusebenza, izidingo eziphezulu nezincane zokugeleza, ukwehla kokucindezela kokugeleza okujwayelekile, ukwehla kwengcindezi ngesikhathi sokuvalwa, umkhawulo kanye ukucindezela okuncane kokungena kwe-valve.)
Ngokwesisekelo esibalulwe ngenhla kanye nezinyathelo zokukhetha ama-valve, lapho ukhetha ama-valve ngokunengqondo nangendlela efanele, kuyadingeka ukuba nokuqonda okuningiliziwe kwesakhiwo sangaphakathi sezinhlobo ezihlukahlukene zama-valve ukuze wenze ukukhetha okufanele kuma-valve athandwayo. Ukulawula kokugcina kwepayipi i-valve. Isivuli sevalvu silawula iphethini yokugeleza kokuphakathi epayipini. Ukuma komgijimi we-valve kwenza i-valve ibe nezici ezithile zokugeleza. Lokhu kufanele kucatshangelwe lapho kukhethwa i-valve efaneleka kakhulu yokufakwa ohlelweni lwamapayipi.