Umgangatho ophezulu woShishino ongabuyisiyo ivalvu yokujonga ivalve yevalufa yaseTshayina umnikezeli wemveliso
Yintoni ivalve engabuyiyo ?
AIvalve engabuyiyoyivalve elula nethembekileyo enebhola engqukuva njengeyona ndawo ishukumayo ukuvala umva.Ngenxa yokuhamba kwayo okulula okusebenzayo kunye noyilo olungenalulondolozo lwevalve iqhele ukuchazwa kwaye isetyenziswe kwizikhululo zokuphakamisa amanzi amdaka angaphantsi kwamanzi.
Ivalve engabuyiyoqulathe ibhola ehlala esitulweni, enomngxuma omnye wokuphumela.Isebenza ngebhola ehla inyuka ngaphakathi kwevalve.Isihlalo senziwe ngoomatshini ukuze silingane ibhola, kwaye igumbi limiliselwe ukukhokela ibhola kwisihlalo ukuze itywine kwaye imise ukujikeleza okubuyela umva.Xa uxinzelelo olusemva kwesihlalo ludlula olo lungaphezu kwebhola, ulwelo luvumelekile ukuba luhambe ngevalve.Kodwa xa uxinzelelo olungaphezulu kwebhola lugqithise uxinzelelo olungaphantsi kwesihlalo, ibhola ibuyela ekuphumleni esihlalweni, yenze itywina elithintela ukubuya ngasemva.Ibhola ishukuma inyuka iphantsi ngaphakathi kwevalve ngokuxhomekeke ekuhambeni kwaye itywine ngokuchasene nesihlalo somatshini xa kungekho mpompoza okanye umva owenzekayo kwaye itywina ngokuchasene nesihlalo ukumisa umva.iivalvu zokutshekisha ezinebhola efakwe i-Buna-N njengomgangatho kunye neebhola zephenolic ezinganyangekiyo kwi-corrosion ye-abrasive media.
Iimpawu eziphambili zevalve engabuyiyo
Iimpawu kunye nezibonelelo zeIvalve engabuyiyo
- *Ivalve yokukhangela ibhola yi-aIvalve elula nethembekileyo enebhola engqukuva njengeyona ndawo ishukumayo ukuthintela ukubuya umva,uyilo olungenalo ugcino, olulungele izikhululo zokuphakamisa amanzi amdaka angaphantsi kwamanzi.
- *NortechIbhola Hlola iValveziyazicoca, njengoko ibhola ijikeleza ngexesha lokusebenza nto leyo esusa umngcipheko wokungcola okuxinga ebholeni.
- *I-bore epheleleyo kunye negudileyo iqinisekisa ukuhamba okupheleleyo kunye nokulahlekelwa kwengcinezelo ephantsi kwaye isusa umngcipheko weediphozithi ezantsi ezinokuthi zithintele ukuvalwa okuqinileyo.Ibhola eliqhelekileyo liyilwe nge-NBR ye-rubber ene-metal core, kwaye ukuqina kwerabha kulungiselelwe ukukhusela ibhola ekubeni ixinge esitulweni.Iibhola ze-polyurethane zifanelekile kwimidiya ye-abrasive kwaye xa iibhola ezahlukeneyo zobunzima zifunekayo ukukhusela ingxolo kunye nehamile yamanzi.
Iinkcukacha zobugcisa zevalve engabuyiyo
Iinkcukacha zobugcisa zeIvalve engabuyiyo
| Uyilo kunye nokuVeliswa | I-BS EN12334 |
| Ubuso ngobuso | I-DIN3202 F6/EN558-1 |
| Ukuphela kweFlange | EN1092-2 PN10,PN16 |
| Umzimba | I-Ductile iron GGG50 |
| Ibhola | Intsimbi ye-Ductile+NBR/i-Ductile iron+EPDM |
| Idayamitha yegama | DN40-DN500 |
| Ukukala koxinzelelo | PN10,PN16 |
| Indawo efanelekileyo | Amanzi, ugutyulo, njl |
| Ubushushu benkonzo | 0~80°C(NBR ibhola),-10~120°C(EPDM ibhola) |
Umboniso weMveliso: Ivalve engabuyiyo
Ukusetyenziswa kwevalve engabuyiyo
Olu hloboIvalve engabuyiyoisetyenziswa kakhulu kwizicelo zamanzi amdaka, kwizityalo zamandla kunye neshishini lenkqubo.Ivalve yokujonga ibhola ikulungele ukusetyenziswa kumajelo angcolisekileyo (ukuya kuthi ga kwi-120˚F) njengoko ivelufa emile okwebhola ithintela ukugcwala kokungcola.Ngokuqhelekileyo isikhululo sokuphakamisa amanzi amdaka siya kuba nevalve yokujonga ibhola ukuthintela ukubuya umva.Ikwasetyenziswa ngokubanzi kwizitishi zokumpompa ezingafane zizinyaswe, kuba zifuna ukulungiswa okunyiniweyo kuphela,
