1. Cacisa umnqopho weivalvungaphakathi kwemitjhini nofana idivayisi
Hlola ubujamo bokusebenza kwevalvu: ubujamo bendawo esebenzako, umfutho wokusebenza, izinga lokutjhisa lokusebenza kanye nendlela yokulawula.
2. Khetha kuhle umhlobo wevalvu
Ukukhetha okufaneleko komhlobo wevalvu kuyimfuneko yokuthi umklami azwisise ngokuzeleko yoke ikambiso yokukhiqiza kanye nobujamo bokusebenza. Lokha nawukhetha umhlobo wevalvu, umklami kufanele aqale azwisise ubujamo besakhiwo nokusebenza kwevalvu ngayinye.
3. Hlola amakhonekhi wokugcina wevalvu
Hlangana nokuhlanganiswa okuneentambo, ukuhlanganiswa kwe-flange, kanye nokuhlanganiswa kwe-welded end, ezimbili zokuthoma ngizo ezisetjenziswa khulu. Amavalvu anentambo ikakhulukazi amavalvu anobubanzi obungaphansi kwama-50mm. Nangabe ububanzi bukhulu khulu, ukufakwa nokuvala ingcenye yokuhlanganisa kuzokuba budisi khulu. Amavalvu anama-flang kulula ukuwafaka nokuwahlukanisa, kodwana abudisi begodu ayabiza ukudlula amavalvu ane-thread, njeke alungele ukuhlanganiswa kwamapayipi anobubanzi obuhlukahlukeneko kanye nokugandeleleka. Iinhlanganisela eziwelelweko zilungele imithwalo ebudisi begodu zithembekile ukudlula iinhlanganisela ezine-flanged. Kodwana, kubudisi ukuhlukanisa nokufaka godu ivalvu exhunywe ngokuwelda, njeke ukusetjenziswa kwayo kukhawulelwe eenkhathini lapho ingasebenza khona ngokuthembeka isikhathi eside, nofana lapho ubujamo bokusetjenziswa bunzima begodu amazinga womtjhiso aphezulu.
4. Ukukhetha izinto zevalvu
Lokha nawukhetha izinto zegobolondo levalvu, iingcenye zangaphakathi kanye nendawo yokuvala, ngaphezu kokucabangela izakhiwo ezibonakalako (amazinga womtjhiso, ukugandeleleka) kanye nezakhiwo zamakhemikhali (ukugqwala) kwendawo yokusebenza, ukuhlanzeka kwendawo (enezinhlayiya eziqinileko namkha ngaphandle kwayo) kufanele kuqalwe. Ukungezelela, kuyatlhogeka ukuqala imithetho efaneleko yombuso nomnyango womsebenzisi. Ukukhetha okufaneleko nokuzwakalako kwezinto zevalvu kungathola ipilo yokonga enengi khulu nokusebenza kuhle kwevalvu. Ukulandelana kokukhethwa kwezinto zomzimba wevalvu: insimbi ephosiweko-insimbi yekhabhoni-insimbi engagqwali, begodu ukulandelana kokukhethwa kwezinto zokuvala indandatho yi: iraba-ithusi-insimbi ye-alloy-F4.
5. Ezinye
Ukungezelela, izinga lokugeleza kanye nezinga lokugandeleleka kwe-fluid egeleza nge-valve kufanele nakho kunqunywe, begodu i-valve efaneleko kufanele ikhethwe kusetjenziswa idatha ekhona (njengeamakhathalogu wemikhiqizo yevalvu, amasampula womkhiqizo wevalvu, njll.).
Isikhathi sokuposa: 11 kuMrhayili 2022
