Ivalvu yokujonga imboni ekumgangatho ophezulu Umvelisi womthengisi wefektri waseTshayina
Yintoni ivalvu yokujonga?
Ivalvu yokujonga luhlobo lwevalvu eyenzelwe injongo enye, ikwayivalvu ezingabuyisiyo.
Jonga iValveyivalvu elula nethembekileyo enebhola engqukuva njengeyona nto ishukumayo yokuthintela ukuhamba okungasemva. Ngenxa yoyilo lwayo olulula lokuhamba olusebenzayo nolungagcini manzi, ivalvu idla ngokuchazwa kwaye isetyenziswa kwizikhululo zokuphakamisa amanzi amdaka angaphantsi komhlaba. Isihlalo sevalvu esigcweleyo senzelwe ngokukodwa ukuvumela ibhola ukuba ihlale iqine ngaphandle kokungena kwisihlalo sevalvu. Kwi-vacuum okanye ivalvu yokulwa nokukhukula, kusetyenziswa ibhola "edadayo" endaweni "etshonayo".
iivalvu zokujongaIqulethe 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.
Iimpawu eziphambili zevalvu yokujonga
Iimpawu kunye neenzuzo zeJonga iValve
- vimba ukuhamba okungasemva,uyilo olungenalondolozo, i-suitbale yezikhululo zokunyusela amanzi amdaka angaphantsi komhlaba.
- *Isihlalo sevalvu esigcweleyo senzelwe ngokukodwa ukuvumela ibhola ukuba ihlale ingena imvula ngaphandle kokungena kwivalvu.
- *INortechJonga iValveziyazicoca, 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 yokujonga
Iinkcukacha zobugcisa zeIvalvu yokujonga ibhola
| 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 yokujonga
Usetyenziso lwevalvu yokujonga
Olu hloboivalvu yokujongaisetyenziswa 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 zibonwe.
