Ma valve owunika ndi ma valve odzichitira okha omwe amatseguka ndikuyenda kutsogolo ndikutseka ndi reverse flow.
Kuthamanga kwa madzi omwe akudutsa mu dongosolo kumatsegula valavu, pamene kutembenuka kulikonse kudzatseka valve.Ntchito yeniyeni idzasiyana malinga ndi mtundu wa makina a Check valve.Mitundu yodziwika bwino ya Check mavavu ndi swing, lift (pistoni ndi mpira), butterfly, stop and tilting-disk.
Apa wopanga RXVAL amawonetsa kusiyana pakati pa Swing Check Valve ndi Lift Check Valve.
Swing Check Valve
Chovala choyambira Choyang'ana chimakhala ndi thupi la valve, boneti, ndi disk yomwe imalumikizidwa ndi hinge.Diskiyo imasuntha kuchoka pampando wa valve kuti ilole kuyenda kutsogolo, ndikubwerera kumpando wa valve pamene kutuluka kwa mtsinje kumayimitsidwa, kuteteza kubwerera kumbuyo.
Chimbale chomwe chili mumtundu wa swing Check valve sichimayendetsedwa pomwe chimatsegula kapena kutseka.Pali mapangidwe ambiri a disk ndi mipando omwe alipo, kuti akwaniritse zofunikira za mapulogalamu osiyanasiyana.Valavu imalola kuyenda kwathunthu, kosasunthika ndikutseka basi pamene kupanikizika kumachepa.Ma valve awa amatsekedwa kwathunthu pamene kuthamanga kufika pa zero, kuti ateteze kubwereranso.Kuthamanga ndi kuthamanga kwa valve mu valve ndizochepa kwambiri.
Swing check valve, swing yang'anani valavu kumpando wa valavu ya disc mozungulira njira yozungulira, chifukwa njira ya valve imakhala yosasunthika, yosasunthika, yosasunthika kusiyana ndi cheke chaching'ono chokweza valavu, yoyenera pazochitika zazikulu zowonongeka ndipo palibe kutuluka nthawi zambiri. , koma sayenera kugwiritsidwa ntchito potulutsa mpweya, kusindikiza kumakhala kochepa kuposa kukweza.
Lift Check Valve
Mapangidwe a mpando wa valavu yonyamula-Check ndi ofanana ndi valavu ya Globe.Chimbale nthawi zambiri chimakhala ngati pisitoni kapena mpira.
Ma valve a Lift Check ali oyenerera kwambiri ntchito yothamanga kwambiri komwe kuthamanga kwathamanga kuli kokwera.Mu lift Check ma valves, chimbalecho chimawongoleredwa ndendende ndipo chimalowa bwino mu dashpot.Ma valve a Lift Check ndi oyenera kuyika mu mizere yopingasa kapena yoyima ya mapaipi omwe amatuluka mmwamba.
Mayendedwe okweza Onani mavavu ayenera kulowa pansi pa mpando nthawi zonse.Pamene kuthamanga kumalowa, pisitoni kapena mpira umakwezedwa mkati mwa zitsogozo kuchokera pampando ndi kukakamizidwa kwa kutuluka mmwamba.Kuthamanga kukayima kapena kutembenuka, pisitoni kapena mpira umakakamizika pampando wa valve ndi kubwereranso ndi mphamvu yokoka.
Chimbalecho chingagwiritsidwe ntchito pamagetsi ang'onoang'ono ang'onoang'ono.Thupi la valve la valve yowunikira ndilofanana ndi valavu yodulidwa (yomwe ingagwiritsidwe ntchito ndi valve yoyimitsa), choncho imakhala ndi mphamvu yaikulu yamadzimadzi.Mapangidwewo ndi ofanana ndi valavu yodulidwa, thupi la valve ndi disc ndi ofanana ndi valavu yodulidwa.Mbali yapansi ya valavu yapamwamba ndi manja opangira chivundikiro cha valve, valavu mu valavu yonyamula kalozera yosavuta yosavuta yoyendetsedwa, pamene sing'anga pansi, valavu imatsegulidwa ndi atolankhani, pamene ma TV amasiya kutuluka, valavu ndi kudzikonda ofukula ikamatera pa mpando, kuteteza TV kumtunda kwenikweni.
Valavu yowongoka yowongoka, mayendedwe olowera ndi kutuluka kwa sing'anga ndi perpendicular kumayendedwe ampando wa valve.
Chovala choyang'ana chowongolera chimakhala ndi njira yofanana ndi mpando wa valve ndi njira yolowera ndi kutuluka kwa valavu, ndipo kukana kwa kayendedwe kake kumakhala kochepa kusiyana ndi valavu yowongoka.
Nthawi yotumiza: Apr-29-2022