Kumene ma cheki ma valve amagwira ntchito

Cholinga chogwiritsa ntchito achekeni valavundikuletsa kuyenda mobwerera kwa sing'anga, ndi achekeni valavunthawi zambiri imayikidwa potulukira pampu.Komanso, achekeni valavuimayikidwa pamtunda wa compressor.Mwachidule, pofuna kupewa kubwereranso kwa sing'anga,fufuzani ma valveziyenera kuikidwa mu zipangizo, zipangizo kapena mapaipi.

Nthawi zambiri, kukweza molunjikafufuzani ma valveamasankhidwa pa mapaipi yopingasa ndi awiri mwadzina 50mm.Kukwera molunjikafufuzani ma valveikhoza kukhazikitsidwa pamizere yopingasa komanso yowongoka.Valavu ya phazi nthawi zambiri imayikidwa pamzere woyima wa polowera, ndipo sing'anga imayenda kuchokera pansi kupita pamwamba.

Thevalavu yoyenderaimatha kupangidwa ndi kuthamanga kwambiri, PN mpaka 42MPa, ndipo DN imathanso kukhala yayikulu kwambiri, mpaka 2000mm.Kutengera ndi zinthu zanyumba ndi zisindikizo, sing'anga iliyonse yogwirira ntchito ndi mtundu uliwonse wa kutentha wogwirira ntchito ungagwiritsidwe ntchito.Sing'anga ndi madzi, nthunzi, gasi, sing'anga zowononga, mafuta, chakudya, mankhwala, ndi zina zotero. Kutentha kwapakati pa -196 ~ 800 ° C.

Swing ma valveikhoza kukhazikitsidwa m'malo opanda malire ndipo nthawi zambiri imayikidwa pamizere yopingasa, koma imatha kukhazikitsidwa pamizere yowongoka kapena yokhotakhota.

Thevalavu ya butterflyndi oyenera kuthamanga otsika ndi m'mimba mwake lalikulu, ndi unsembe zinthu ndi ochepa.Chifukwa kupanikizika kwa ntchito yavalavu ya butterflysangakhale okwera kwambiri, koma m'mimba mwake mwadzina akhoza kukhala wamkulu kwambiri, amatha kufika kupitirira 2000mm, koma kuthamanga mwadzina kuli pansipa 6.4MPa.Thevalavu ya butterflyZitha kupangidwa kukhala mtundu wazitsulo ziwiri, zomwe nthawi zambiri zimayikidwa pakati pa ma flanges awiri a payipi, ndikutenga mawonekedwe olumikizirana awiri.

Thevalavu ya butterflyikhoza kukhazikitsidwa mopanda malire ndipo ikhoza kukhazikitsidwa pamzere wopingasa, woyima kapena wokhotakhota.

Diaphragmfufuzani ma valvendi oyenera mapaipi omwe amakonda nyundo yamadzi, ndipo diaphragm imatha kuthetsa nyundo yamadzi pamene sing'anga imayenda motsutsana ndi kutuluka.Chifukwa kutentha ntchito ndi ntchito kuthamanga diaphragmfufuzani ma valveali ochepa ndi zipangizo diaphragm, iwo zambiri ntchito otsika-anzanu kutentha mapaipi wamba, makamaka oyenera mapaipi madzi.Nthawi zambiri, kutentha kwa sing'anga kumakhala pakati pa -20 ~ 120 ° C, ndipo kuthamanga kwa ntchito ndi <1.6MPa, koma diaphragmchekeni valavuamatha kukwaniritsa zokulirapo, ndipo DN imatha kukhala yopitilira 2000mm.

Diaphragmfufuzani ma valveZakhala zikugwiritsidwa ntchito kwambiri m'zaka zaposachedwa chifukwa chakuchita bwino kosalowa madzi, kapangidwe kake kosavuta komanso mtengo wotsika wopanga.

Mpirachekeni valavuchifukwa chisindikizo ndi mpira wokutidwa ndi mphira, kotero ntchito yosindikiza ndi yabwino, ntchitoyo ndi yodalirika, komanso kukana kugwedezeka kwa madzi ndikwabwino;Ndipo chifukwa chisindikizocho chikhoza kukhala mpira umodzi, kapena chikhoza kupangidwa kukhala mipira ingapo, kotero chikhoza kupangidwa kukhala lalikulu lalikulu.Komabe, zisindikizo zake zimakhala zozungulira zomwe zimakutidwa ndi mphira, zomwe sizoyenera mapaipi othamanga kwambiri, oyenera mapaipi apakati komanso otsika.

Popeza nyumba zakuthupi mpirachekeni valavuchitha kupangidwa ndi chitsulo chosapanga dzimbiri, ndipo mpira wopanda pake wa chisindikizocho ukhoza kukhala wokutidwa ndi pulasitiki yaukadaulo ya PTFE, itha kugwiritsidwanso ntchito popanga ma media ambiri owononga.

Kutentha kogwira ntchito kwa mtundu uwu wa valve cheke kuli pakati pa -101 ~ 150 ° C, kuthamanga kwake mwadzina ndi ≤4.0MPa, ndipo m'mimba mwake mwadzina ndi pakati pa 200 ~ 1200mm.