Ii-wafer dual plate check valvegodu mhlobo we-valve yokuhlola enokusebenza okujikajikako, kodwana yi-disc ephindwe kabili begodu ivala ngaphasi kwesenzo se-spring. Idiski ivuleka nge-fluid evela phasi, i-valve inesakhiwo esilula, i-clamp ifakwe hlangana nama-flange amabili, begodu ubukhulu obuncani nobunzima obulula buphasi.
Ii-wafer dual plate check valveine-disc ezimbili ezine-spring ezimise okwe-D ezibekwe phezu kweshafti eneembambo ngaphetjheya kwebhore yevalvu. Isakhiwo lesi sifinyeza ibanga lapho isikhungo se-gravity sediski sihamba khona. Ukwakhiwa lokhu kubuye kwehlise ubudisi bediski ngama-50% nayimadaniswa nevalvu yokuhlola enediski eyodwa efanako. Ngebanga lomthwalo we-spring, ivalvu isabela msinya khulu ekugelezeni emuva.
Ukwakhiwa okulula kwe-wafer dual plate check valve's double lobe kwenza ukuvalwa kwesihlalo nokusebenza kuhle.
Isenzo se-spring ye-arm ede yevivane eliphindwe kabiliivalvu yokuhlolaivumela idiski bona ivuleke begodu ivale ngaphandle kokuhlikihla isihlalo, begodu intwasahlobo isebenza ngokuzijamela ukuvala idiski (DN150 nangaphezulu).
Umkhono wokusekela one-hinge wevivane elinamaflebhu amabiliivalvu yokuhlolayehlisa ukutjhayisana begodu yehlisa isando samanzi lokha nayikhishwa nge-disc ehlukileko (umgodi omkhulu).
Nayiqathaniswa nejwayelekilekoamavalvu wokuhlola ajikijela,i-wafer dual plate check valveukwakhiwa kuvamise ukuba namandla, kulula, kuncani, kusebenza kuhle, begodu kungabizi khulu. Ivalvu le ihlangabezana nezinga le-API 594, emadimitha amanengi, ubukhulu bobuso nobuso bevalvu buyi-1/4 yevalvu ejayelekileko, begodu ubudisi bayo buyi-15%~20% yevalvu ejayelekileko, njeke itjhiphile ukudlula ivalvu yokuhlola i-swing. Kulula nokufaka hlangana nama-gasket ajwayelekileko nama-flange wamapayipi. Ngombana kulula ukuyiphatha begodu itlhoga isethi yinye kwaphela yamabhawudo wokuhlanganisa i-flange, ibuye isindise iingcenye ngesikhathi sokufaka, isindisa iindleko zokufaka kanye neendleko zokulondoloza qobe langa.
Ivalvu yokuhlola ivithamini enamaflebhu amabili nayo inezinto ezikhethekileko zokwakha ezenza ivalvu le ibe yivalvu yokuhlola esebenza kuhle khulu. Iimfanelo lezi zifaka hlangana ukuvuleka okungakahlanzeki, ukwakhiwa kwe-spring okuzijameleko kwamavalvu amanengi we-bore, kanye namasistimu wokusekela ama-disc azijameleko. Ezinye zezinto lezi azitholakali ngamavalvu wokuhlola. I-wafer dual plate check valve nayo ingaklanywa ngama-lugs, ama-flange amabili kanye nomzimba onabileko.
Kokuthoma, ikambiso yokuvula nokuvala
Ukwakhiwa kwamadiski amabili kufaka hlangana amadiski amabili afakwe iintwasahlobo (amadiski angama-semi) alengiswe ephinini ene-hinged emile phakathi. Lokha i-fluid nayithoma ukugeleza, idiski ivuleka ngamandla aphumelako (F) asebenza phakathi nendawo yokuvala. I-counteract spring support force (FS) isetjenziswa endaweni engaphandle kwesikhungo sobuso be-disc, okwenza bona umrabhu we-disc uvuleke qangi. Lokhu kugwema ukutjhayisana ebusweni bokuvala okwenzekako lokha idiski nayivulwa emavalvu amadala avamileko, okuqeda ukuguga nokudabuka kweengcenye.
Lokha izinga lokugeleza nalithobako, i-torsion spring iyaphendula ngokuzenzakalelako, okwenza bona idiski ivale bese itjhidela eduze nesihlalo somzimba, okwenza bona ibanga lokukhamba nesikhathi sokuvala sinciphise. Lokha i-fluid nayigeleza ibuyela emuva, idiski iyatjhidela kancanikancani esihlalweni somzimba, begodu ukuphendula okunamandla kwe-valve kukhawuleza khulu, ukwehlisa umphumela wesando samanzi begodu kuzuze ukusebenza okunganamthelela.
Lokha nakuvalwa, isenzo sephuzu lokusebenza kwamandla we-spring senza bona phezulu kwediski kuvale kuqala, kuvimbele ukuluma nokutjhayisana empandeni yediski, ukwenzela bona ivalvu igcine ubuqotho besivalo isikhathi eside.
2. Isakhiwo esizijameleko sentwasahlobo
Ukwakhiwa kwentwasahlobo (i-DN150 nangaphezulu) kuvumela bona kusetjenziswe amandla amakhulu kudiski ngayinye begodu idiski iyavala ngokuzijamela njengombana ukugeleza kwebubulo kutjhuguluka. Iimhloliso zitjengise bona umphumela lo ubangele ukwanda okungu-25% kwepilo yevalvu kanye nokwehla okungu-50% kwesando samanzi.
Isigaba ngasinye sediski ephindwe kabili sineziphethu zaso ezinikela amandla wokuvala azijameleko begodu zibekelwe ukutjhuguluka okuncani kwe-140° (umfanekiso 3) esikhundleni se-350° yesiphetho esijayelekileko esinamabhakede amabili.
3. Isakhiwo sokumiswa kwediski esizijameleko
Isakhiwo esizijameleko se-hinge sinciphisa ukutjhayisana ngama-66%, okwenza ngcono khulu ukusabela kwevalvu. Umkhono wokusekela ufakwa ukusuka e-hinge yangaphandle ukwenzela bona i-hinge ephezulu ikghone ukusekelwa ngokuzijamela mkhono ongezansi ngesikhathi sokusebenza kwevalvu. Lokhu kuvumela bona amadiski womabili asabele msinya begodu avale ngesikhathi sinye, lokho kuzuze ukusebenza okuhle khulu.
Okwesine, indlela yokuxhumana ngepayipi
Amavalvu wokuhlola amapuleti amabili we-waferbegodu amapayipi angahlanganiswa ngama-clamps, ama-lugs, ama-flanges, nama-clamps.
Ungachofoza kuwebhusayithi yethu ukuthola ilwazi elinabilekoI-Butterfly Valve, ukugeleza okulawulwa yi-TWS Valve (tws-valve.com)
Isikhathi sokuposa: Okthoba-24-2024
