Ivalvu yokujonga ibhola ye-valve engabuyisiyo yoMzi-mveliso ePhakamileyo Umthengisi wefektri waseTshayina Umvelisi
Yintoni ivalvu engabuyisiyo?
AIvalvu engabuyisiyoyivalvu elula nethembekileyo enebhola engqukuva njengeyona nto ishukumayo yokuthintela ukuhamba okungasemva. Ngenxa yokuba ukuhamba kwayo kulula kwaye ayidingi kugcinwa, ivalvu idla ngokuchazwa kwaye isetyenziswa kwizikhululo zokunyuswa kwamanzi amdaka angaphantsi komhlaba.
Ivalvu engabuyisiyoIqulethe ibhola ehleli esihlalweni, enomngxuma omnye kuphela. Isebenza ngebhola ehamba phezulu nasezantsi ngaphakathi kwevalvu. Isihlalo senziwe ngomatshini ukuze silingane nebhola, kwaye igumbi lenziwe ngendlela ejikelezayo ukuze likhokele ibhola esihlalweni ukuze livale kwaye limise ukuhamba okungasemva. Ibhola inobubanzi obukhulu kancinci kunobo bomngxuma ongasemva (isihlalo). Xa uxinzelelo olungasemva kwesihlalo ludlula olo lungaphezulu kwebhola, ulwelo luyavunyelwa ukuba ludlule kwivalvu. Kodwa xa uxinzelelo olungaphezulu kwebhola ludlula uxinzelelo olungaphantsi kwesihlalo, ibhola ibuyela esihlalweni, yenze isitywino esithintela ukuhamba okungasemva. Ibhola ihamba phezulu nasezantsi ngaphakathi kwevalvu kuxhomekeke ekuhambeni kwaye ivale isihlalo esenziwe ngomatshini xa kungekho kuhamba okanye ukuhamba okungasemva kwenzekayo kwaye ivale isihlalo ukuze imise ukuhamba okungasemva. Iivalvu zokujonga ezinebhola eneBuna-N njengomgangatho kwaye zineebhola zephenolic ezingamelani nokugqwala zemidiya erhabaxa.
Iimpawu eziphambili zevalvu engabuyisiyo
Iimpawu kunye neenzuzo zeIvalvu engabuyisiyo
- *ivalvu yokujonga ibhola yiivalvu elula nethembekileyo enebhola engqukuva njengeyona nto ishukumayo yokuthintela ukuhamba okungasemva,uyilo olungenalondolozo, i-suitbale yezikhululo zokunyusela amanzi amdaka angaphantsi komhlaba.
- *INortechIvalvu yokujonga ibholaziyazicoca, njengoko ibhola ijikeleza ngexesha lokusebenza nto leyo esusa umngcipheko wokuba ukungcola kubambeke ebholeni.
- *Imbobo epheleleyo negudileyo iqinisekisa ukuhamba ngokupheleleyo kunye nokulahleka koxinzelelo oluphantsi kwaye isusa umngcipheko weediphozithi ezantsi ezinokuthintela ukuvalwa okuqinileyo. Ibhola eqhelekileyo yenzelwe isiseko sesinyithi esinerabha ye-NBR, kwaye ubunzima berabha bulungiselelwe ukuthintela ibhola ukuba ingabambeki esihlalweni. Iibhola ze-polyurethane zifanelekile kwimidiya erhabaxa kwaye xa kufuneka ubunzima beebhola ezahlukeneyo ukuthintela ingxolo kunye nesando samanzi.
Iinkcukacha zobugcisa zevalvu engabuyisiyo
Iinkcukacha zobugcisa zeIvalvu engabuyisiyo
| Uyilo kunye noMveliso | I-BS EN12334 |
| Ubuso ngobuso | I-DIN3202 F6/EN558-1 |
| Isiphelo seFlange | EN1092-2 PN10,PN16 |
| Umzimba | I-Ductile iron GGG50 |
| Ibhola | Intsimbi ye-Ductile + i-NBR / intsimbi ye-Ductile + i-EPDM |
| Ububanzi obuqhelekileyo | DN40-DN500 |
| Uvavanyo loxinzelelo | PN10, PN16 |
| Isixhobo esifanelekileyo | Amanzi, amanzi amdaka, njl.njl. |
| Ubushushu benkonzo | 0~80°C(ibhola ye-NBR),-10~120°C(ibhola ye-EPDM) |
Umboniso weMveliso: Ivalvu engabuyisiyo
Usetyenziso lwevalvu engabuyisiyo
Olu hloboIvalvu engabuyisiyoisetyenziswa kakhulu kwiindawo zokusetyenziswa kwamanzi amdaka, kwizikhululo zamandla nakwimizi-mveliso yenkqubo. Ivalvu yokujonga ibhola ifanelekile ukusetyenziswa kwiindawo ezingcolileyo (ukuya kuthi ga kwi-120˚F) njengoko ivalvu efana nebhola ithintela ukuqokelelana kokungcola. Ngokwesiqhelo isikhululo sokuphakamisa amanzi amdaka siya kuba nevalvu yokujonga ibhola ukuthintela ukuhamba okungasemva. Ikwasetyenziswa kakhulu kwiindawo zokumpompa ezingafane zijongwe, kuba zifuna ulondolozo olulinganiselweyo kuphela,
