Umgangatho oPhezulu weBhola yoShishino engabuyiyo ivalvu yokukhangela ivalve yaseTshayina umnikezeli wemveliso
Yintoni ivalve engabuyiyo yeBhola ?
AIvalve yebhola engabuyiyoyivalve elula nethembekileyo enebhola engqukuva njengeyona ndawo ishukumayo ukuvala umva.Ngenxa yokuhamba kwayo okulula kunye noyilo olungenalo ukugcinwa kwevalve ngokuqhelekileyo ichazwe kwaye isetyenziswe kwizikhululo zokunyusa amanzi amdaka angaphantsi kwamanzi.Isihlalo sevalve esigcweleyo senziwe ngokukodwa sivumela ibhola ukuba ihlale ivuza-iqinile ngaphandle kokungena kwi-wedge kwisihlalo sevalve.Xa kusenziwa ivacuum okanye ivalve yokuchasa amanzi, kusetyenziswa ibhola "edadayo" endaweni "ezikileyo".
Ivalve yebhola 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 kwaye ihla ngaphakathi kwevalve ngokuxhomekeke ekuhambeni kwaye itywine ngokuchasene nesihlalo somatshini xa kungekho mpompoza okanye ukubuya umva okwenzekayo kwaye itywine 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 yeBhola
Iimpawu kunye nezibonelelo zeIvalve yebhola 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.
- *Isitulo sevalve esigcweleyo siyilwe ngokukodwa sivumela ibhola ukuba ihlale ivuza-iqinile ngaphandle kokungena kwi-wedge kwivalve.
- *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 yeBhola
Iinkcukacha zobugcisa zeIvalve yebhola 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 yebhola engabuyiyo
Ukusetyenziswa kwevalve yeBhola engabuyiyo
Olu hloboIvalve yebhola 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 ulondolozo olunyiniweyo kuphela.
