Kutheni kufunekaivalvu yeglobhuNgaba ingayilwa njengevalvu yeglobhu engaphantsi, i-outlet ephezulu kunye ne-diameter encinci? Kwinkqubo yoyilo kunye nokufakela, i-inlet ephantsi kunye ne-outlet ephezulu zihlala zisetyenziswa, oko kukuthi, i-globe valve ihamba ukusuka ngaphantsi kwe-valve flap ukuya ngaphezulu kwe-valve flap. I-globe valve encinci ine-stem torque encinci kakhulu kunye ne-opening kunye ne-closing torque encinci yokusebenza. Nokuba phantsi kwempembelelo yoxinzelelo olusebenzayo, impembelelo ekusebenzeni incinci, kuba impembelelo yecala lokuhamba kwe-medium kubunzima bokusebenza inokungahoywa. I-globe valve encinci iyamkelwa Zonke ziyizakhiwo ezingalinganiyo. Kutheni i-globe valve kufuneka iyilwe nge-inlet ephantsi kunye ne-outlet ephezulu ene-inlet ephantsi kunye ne-outlet ephezulu? Xa ivaliwe, uxinzelelo oluphakathi lunempembelelo encinci kwi-valve stem kwaye aluyi kuchaphazela i-valve stem.
Isiqu sevalvu sikwantywiliselwa kwisixhobo, esingelulanga ukungcoliswa sisixhobo, esikhusela ngempumelelo isiqu sevalvu; isakhiwo sokupakisha sikwahlulwe ngempumelelo kwisixhobo, siqinisekisa impembelelo yesixhobo kwisixhobo sokupakisha, kwaye sandisa ubomi besixhobo sokupakisha isiqu sevalvu ngempumelelo.
Eyona nto ibalulekileyo kukhuseleko. Ukuba isiqu sevalvu siyaphuka okanye kukho ezinye iingxaki, ivalvu inokuvuleka ngokuzenzekelayo ukuthintela uxinzelelo olugqithisileyo lwenkqubo.
Ukusetyenziswa kokungena okuphantsi kunye nendawo yokuphuma ephezulu kunokuthintela ngempumelelo isiganeko sehammer yamanzi sevalvu yokuvala. Xa ivaliwe, phantsi kwesenzo soxinzelelo oluphakathi, isantya sokuhamba phantsi kweflephu yokuthambisa asinakuba sikhawulezileyo, kwaye ixesha lokuvala lide kakhulu, kwaye akulula ukubangela ihammer yamanzi ngokuthanda kwayo, okubangela ukungcangcazela kombhobho kunye nokuthintela umonakalo kwizixhobo zonke ezinxulumene nombhobho.