Namhlanje, umzi-mveliso weJinbin ugqibezele ukupakisha ivalvu yesango elikhulu le-DN700.ivalvu yesango le-suliceiye yapholishwa kwaye yalungiswa ngocoselelo ngabasebenzi, kwaye ngoku ipakishwe kwaye ilungele ukuthunyelwa kwindawo eya kuyo.

Iivalvu zesango ezinkulu ezinobubanzi obuphezulu zinezibonelelo ezilandelayo:

1.Umthamo wokuhamba ngamandla: Uyilo olukhulu luvumela ukuba ulwelo oluninzi ludlule, lunciphisa ukumelana nolwelo kwaye luqinisekise ukuthuthwa kolwelo okugudileyo.

2. Ukusebenza kakuhle kokuvala: Ukusebenzisa izixhobo zokuvala ezisemgangathweni ophezulu kunokuthintela ngokufanelekileyo ukuvuza kolwelo kwaye kuqinisekise ukusebenza ngokukhuselekileyo kwenkqubo.

3. Kulula ukuyisebenzisa: Idla ngokusebenza nge-handwheel okanye i-electric actuator, ekulula ukuyisebenzisa kwaye inokuvula nokuvala ngokukhawuleza.

4.Ihlala ixesha elide kwaye ithembekile: Isakhiwo siqinile, sinako ukumelana noxinzelelo olukhulu kunye namandla okubetha, kwaye sinobomi obude benkonzo.

Ivalvu yesango lesinyithi elinobubanzi obukhulu idla ngokusetyenziswa kwezi meko zilandelayo:

1. Ubunjineli bokugcinwa kwamanzi: Kumadama amakhulu, kwiindawo zokugcina amanzi nakwezinye iindawo zokugcina amanzi, iivalvu zesango ezinobukhulu obukhulu zisetyenziselwa ukulawula ukungena nokuphuma kwamanzi kunye nokulawula amanqanaba amanzi.

2. Inkqubo yokuhambisa amanzi kunye nokukhupha amanzi: Kwimibhobho yokuhambisa amanzi ezidolophini kunye nokukhupha amanzi, ivalvu enkulu yesango lamanzi ingasetyenziselwa ukulawula indlela kunye nokuhamba kwamanzi, ukuqinisekisa ukusebenza okuqhelekileyo kokuhambisa amanzi kunye nokukhupha amanzi.

3. Ishishini leekhemikhali: Kwiinkqubo zemibhobho kwimizi-mveliso efana nepetroliyam kunye neekhemikhali, iivalvu zesango ezinobukhulu obukhulu zisetyenziselwa ukulawula ukuhamba kolwelo kunye neegesi ezahlukeneyo, ukuthintela ukuvuza kunye neengozi.

4. Ishishini lombane: Kwizikhululo zombane, kwizikhululo zombane nakwezinye iindawo zombane, iivalvu zesango ezinkulu zisetyenziselwa ukulawula ukuhamba kwamanzi anje ngamanzi abandayo kunye nomphunga, ukuqinisekisa ukusebenza okuqhelekileyo kwezixhobo.

5. Unyango lwamanzi amdaka: Kwiindawo zokunyanga amanzi amdaka, ivalvu yesango le-flange enobubanzi obukhulu isetyenziselwa ukulawula ukuhamba kwamanzi amdaka kunye necala eliya kulo, ukuqinisekisa inkqubela phambili ethe tye yenkqubo yokunyanga amanzi amdaka.

Ngoko ke,ivalvu yesango enobubanzi obukhuluixabiso lisetyenziswe kakhulu kwiindawo ezahlukeneyo ezifana nobunjineli bokugcinwa kwamanzi, iinkqubo zokubonelela ngamanzi kunye nokuhambisa amanzi, iikhemikhali zepetrochemicals, ishishini lamandla, kunye nonyango lwelindle ngenxa yomthamo wazo oqinileyo wokuhamba kwamanzi, ukusebenza kakuhle kokuvala, ukusebenza lula, ukuqina, kunye nokuthembeka.