Ivalvu yokujonga ibhola ye-NBR ekumgangatho ophezulu yoMzi-mveliso waseTshayina Umvelisi womzi-mveliso
Yintoni ivalvu yokujonga ibhola ye-NBR?
AIvalvu yokujonga ibhola ye-NBRyivalvu 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".
Ivalvu yokujonga ibhola ye-NBRIqulethe 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 ze-NBR ball check valve
Iimpawu kunye neenzuzo zeIvalvu yokujonga ibhola ye-NBR
- *Isihlalo sevalvu esigcweleyo senzelwe ngokukodwa ukuvumela ibhola ukuba ihlale ingena imvula ngaphandle kokungena kwivalvu.
- *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 ze-NBR ball check valve
Iinkcukacha zobugcisa zeIvalvu yokujonga ibhola ye-NBR
| 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: I-NBR ball check valve
Usetyenziso lwe-NBR ball check valve
Olu hloboIvalvu yokujonga ibhola ye-NBRIsetyenziswa 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 emile okwebhola ithintela ukuqokelelana kokungcola. Ikwasetyenziswa kakhulu kwiindawo zokumpompa ezingafane zijongwe, kuba zifuna ulondolozo olulinganiselweyo kuphela, ngesiqhelo ukuba ibhola yenza ingxolo ebangelwa kukunganeli komthamo wepompo okanye isando samanzi.
