Umgangatho wesizwe osetyenziswa kakhuluivalvu yesangoyivalvu yesango le-wedge. Uphawu lwayo lolwakhiwo kukuba iindawo ezimbini zokutywina kwisango le-wedge kunye neendawo zokutywina zemijelo emibini yokuhamba emzimbeni wevalvu zenza isibini sokutywina ukuze kufezekiswe isiphumo sokutywina. Ulwakhiwo lwayo lulula, kwaye ulwelo luncinci, kwaye luhlala lusetyenziselwa ukuthuthwa komgama omde, imibhobho kunye nezixhobo zamanzi, ioyile, igesi kunye nezinye izinto. Injongo yokusebenzisa isango le-wedge kukunyusa umthwalo wokuncedisa wokutywina, ukuze ivalvu yesango le-metal-sealed mode ikwazi ukutywina zombini uxinzelelo oluphakathi oluphezulu kunye noxinzelelo oluphakathi oluphantsi. Xa uvala, jikelezisa isiqu sevalvu ngokwewotshi ukuze wenze umphezulu wokutywina wevalvu yesango kunye nomphezulu wokutywina womzimba wevalvu usondele ukuze kufezekiswe ukutywina. Nangona kunjalo, uxinzelelo oluthile lwe-seal kwisiphelo sokungena sevalvu yesango le-metal-sealed mode eveliswa sisenzo sokutywina ludla ngokwanelanga ukufikelela kwitywina lokuphela kokungena. Ke ngoko, ivalvu yesango le-metal-sealed mode yitywina ephoqelelweyo ecala linye.
Izihlandlo ezifanelekileyo zevalvu yesango lemowudi:
Ububanzi bokusetyenziswa kunye neempawu zesakhiwo sevalvu ye-wedge esemgangathweni yesizwe, phakathi kweentlobo ngeentlobo zeevalvu, ivalvu yesango yeyona isetyenziswa kakhulu. Ngokuqhelekileyo ifaneleka kuphela xa ivuliwe ngokupheleleyo okanye ivaliwe ngokupheleleyo, kwaye ayinakusetyenziselwa ukulungisa nokuqhobosha.
Iivalvu zesango lemode zihlala zisetyenziswa kwiimeko apho kungekho mfuneko ingqongqo kwimilinganiselo yangaphandle yevalvu, kwaye iimeko zokusetyenziswa zinzima kakhulu. Njengendawo yokusebenza yobushushu obuphezulu kunye noxinzelelo oluphezulu, kufuneka ukuba iindawo zokuvala zivalwe ixesha elide.
Ngokubanzi, iimeko zokusetyenziswa okanye iimfuno zifuna ukusebenza okuthembekileyo kokutywina, uxinzelelo oluphezulu, ukunqunyulwa koxinzelelo oluphezulu (umahluko omkhulu woxinzelelo), ukunqunyulwa koxinzelelo oluphantsi (umahluko omncinci woxinzelelo), ingxolo ephantsi, ukutsalwa kwe-cavitation kunye nokufuma, ubushushu obuphakathi obuphezulu, ubushushu obuphantsi (i-cryogenic), kuyacetyiswa ukusebenzisa i-Wedge gate valve. Ezifana nomzi-mveliso wamandla ombane, ukucocwa kwepetroleum, umzi-mveliso wepetrochemical, ioyile yolwandle, ubunjineli bokubonelela ngamanzi kunye nobunjineli bonyango lwendle kulwakhiwo lwasezidolophini, umzi-mveliso weekhemikhali kunye neminye imimandla.