Buku la 304 la chitsulo chosapanga dzimbirivalavu ya chipata cha mpeniNdi valavu yoyendetsera ntchito yoyendetsera mapaipi oyendera matope a mgodi. Yokhala ndi mphamvu ya 1.6MPa, imapezeka mu DN100, DN300 ndi DN350, yoyenera kugwiritsidwa ntchito ndi kutentha kwapakati ≤ 100℃. Yopangidwira makamaka matope a mgodi okhala ndi tinthu tolimba komanso mawonekedwe amphamvu otsukira, valavu iyi imathetsa mavuto ofala a mafakitale monga kutsekeka pafupipafupi, kusweka kwakukulu ndi kulephera kutseka. Ndi magwiridwe antchito okhazikika komanso odalirika, yakhala chipangizo chowongolera madzi chomwe chimakonda kwambiri pa ntchito zoyendetsera migodi padziko lonse lapansi komanso zoyendera matope, zomwe zimagwirizana bwino ndi malo ovuta ogwirira ntchito migodi.

Valavu iyi ili ndi zinthu zaukadaulo komanso kapangidwe kake kopangidwira ntchito yothira matope. Thupi la valavu yachitsulo chosapanga dzimbiri la 304 limapereka kukana dzimbiri komanso magwiridwe antchito oletsa kupukuta, limalimbana bwino ndi kukokoloka ndi kuwonongeka komwe kumachitika chifukwa cha zinthu zosafunika za mchere mu matope, komanso limapewa mavuto a dzimbiri ndi kubowoka kwa mavavu wamba. Kapangidwe ka tsamba lopyapyala komanso lakuthwa kamatha kudula bwino zotsalira zolimba ndi zonyansa za ulusi mkati mwa sing'anga, kuonetsetsa kuti kutsegula ndi kutseka sikukutsekedwa popanda kutsekeka kwa zinthu. Pogwiritsa ntchito handwheel drive yamanja, sikufuna ma mota amagetsi, magwero a mpweya kapena zida zina zothandizira zamagetsi. Ntchito yosavuta komanso yodalirika pamalopo sidzakhudzidwa ndi kuzima kwa magetsi kapena kulephera kwa mpweya, kuonetsetsa kuti mapaipi akugwira ntchito bwino chaka chonse.

Ili ndi magwiridwe antchito abwino kwambiri otsekera komanso kusinthasintha kwa kukhazikitsa. Yokhala ndi kapangidwe kodzitsekera kodziyeretsera yokha, valavu imatha kupukuta zokha malo osungiramo matope ndi zotsalira za mchere pamalo otsekera panthawi yotsegula ndi kutseka, kusunga malo otsekera oyera komanso magwiridwe antchito otsekera kwa nthawi yayitali kuti apewe kutayikira kwapakati. Kulumikizana kokhazikika kwa flange kumapangitsa kukhazikitsa kosavuta komanso kogwira mtima, komwe ndikoyenera kukonza mapaipi opapatiza komanso ovuta m'migodi yapansi panthaka, migodi yotseguka ndi zipinda zopopera. Ndi mulingo wa kuthamanga kwa 1.6MPa, imakwaniritsa mokwanira zofunikira zonyamula kuthamanga kwa mapaipi apakati ndi otsika kuti anyamule matope ndi zinyalala m'migodi.

Pogwiritsidwa ntchito moyenera, ma valve otchingira mipeni awa amachepetsa ndalama zogwirira ntchito ndikuwonjezera magwiridwe antchito a mabizinesi amigodi. Thupi la valve yaying'ono limatenga malo ochepa a mapaipi, ndipo limagwirizana bwino ndi mapulojekiti atsopano a migodi ndi mapulojekiti akale okonzanso mapaipi. Kapangidwe ka ma drive amanja kamachepetsa kwambiri ndalama zogulira ndi kukonza zida popanda njira yovuta yowongolera zamagetsi. Kulephera kwake kochepa kwambiri kumachepetsa bwino kuchuluka kwa kukonza ndi kutayika kwa kupanga. Pokhala ndi ma DN100, DN300 ndi DN350, valavuyi imagwirizana ndi mapaipi okhala ndi matope osiyanasiyana. Imathandizira kusintha kwakukulu ndi kupezeka kwa zinthu zambiri ndi kutumiza kokhazikika kuti ikwaniritse zosowa zogulira za mapulojekiti apadziko lonse lapansi amigodi.

Ma valve onse 304 achitsulo chosapanga dzimbiri opangidwa ndi manja amapangidwa motsatira miyezo yapadziko lonse lapansi ya mafakitale. Valavu iliyonse imayesedwa mwamphamvu ndi hydrostatic, kuyang'aniridwa kotseka ndi kutsimikiziridwa kwa magwiridwe antchito isanaperekedwe kuti iwonetsetse kuti ili ndi khalidwe lokhazikika komanso lodalirika. Monga valavu yotseka yotsika mtengo yogwiritsidwa ntchito pokonza miyala, imagwiritsidwa ntchito kwambiri pakukonza miyala, mayendedwe a slurry ndi kukonza tailings mkati mwa kutentha kwapakati pa 100℃. Timapereka zinthu zokhazikika, ntchito zosankhira zomwe zasinthidwa komanso mayankho athunthu owongolera madzi a m'mapaipi amakampani opanga migodi padziko lonse lapansi a B-end, omwe ndi njira yabwino kwambiri yosinthira ma valve achikhalidwe pantchito yokonza slurry.