1.I-valve butterfly ephakathikanye ne-eccentric butterfly valve
I-Centerline butterfly valve kanye ne-eccentric butterfly valve inezinzuzo zayo kanye nokubi,Lapho ukhetha imodeli, kufanele icatshangelwe ngokugcwele kuhlanganiswa nokusebenza kwayo kwezindleko.Ngokuvamile, i-valve uvemvane yomugqa omaphakathi ishibhile kune-eccentric butterfly valve.Amavalvu uvemvane emaphakathi asetshenziswa kakhulu kumavalvu ovemvane anobubanzi obuncane bezwe lami, futhi umphumela wawo muhle uma kuqhathaniswa.Uphawu lwayo lokuvala luwuphawu lwe-rubber lining squeeze seal, ikakhulukazi eduze kwe-valve shaft igxiliwe kakhulu, ukuze impilo yesevisi ye-valve ithinteke, futhi i-torque yokuvula nokuvala ye-valve inkulu kakhulu.Ukuze unciphise ukushiyeka kwalesi sici, i-valve butterfly eccentric yavela.Isimo sokuvalwa kwesithiyori siyisimo sokuvala othintana naye.Abakhiqizi abaningi baye bahlakulela lesi sici.I-valve uvemvane i-eccentric iqondise ekuthwaleni ukucindezela kwamanzi, ikakhulukazi i-valve uvemvane enezinhlangothi ezintathu.Amandla okuthwala ingcindezi abuthakathaka.Ngenxa yokuthi inethiwekhi yepayipi imise okwendandatho, izidingo ze-valve ukuthwala ukucindezela kuzo zombili izinkomba ziyafana, ngakho le mfuneko kufanele igcizelelwe lapho kukhethwa i-valve.
2.Amavalve evemvane aqondile naqondile
Kumavalvu ovemvane aphakathi nendawo namakhulu, kunomehluko phakathi kwama-valve shafts aqondile navundlile.Ngokuvamile, ama-valve ovemvane aqondile ambozwe inhlabathi ejulile, futhi imfucumfucu emanzini ingase igoqe emaphethelweni e-shaft futhi ithinte ukuvula nokuvala;ibhokisi lokudlulisa isivinini eliguquguqukayo lamavalvu ovemvane avundlile liseceleni.I-valve kahle ithatha indawo ebanzi yendiza emgwaqeni, ethinta ukuhlelwa kwamanye amapayipi.Ngakho-ke, ngenxa yezinkinga ezingenhla, kufanele kucace enqubweni yokukhetha ama-valve: ama-valve evemvane enobubanzi obuphakathi ngokuvamile aqondile, futhi ama-butterfly anobubanzi obukhulu kufanele aqale avundlile uma isimo sendiza sivunyelwe.Lokhu akugcini nje ukuthuthukisa kakhulu izimo zokugeleza kwe-valve, kodwa futhi kuxazulula ngokuphelele inkinga ye-sundries emanzini ahlanganiswe ne-valve shaft.
3.Isigxivizo esithambile nesigxivizo sensimbi.
Iningi lamavalvu ovemvane asetshenziswa embonini yokuphakelwa kwamanzi yiwoama-valve uvemvane avaliwe.Ngenxa yezinkinga ezithile ekusetshenzisweni kwale ndlela yokuvala, abakhiqizi abaningi baye bethula ama-valve uvemvane avalwe ngensimbi ukuze athathele amavalvu ovemvane avaliwe.Uma sikhetha ama-valve ophawu oluthambile kanye nensimbi, sisadinga ukucabangela ukusebenza kahle kwezindleko zalokhu okubili.
①Izinkinga ezinkulu zevalve uvemvane elivalekayo elisetshenziswayo yilezi: ikhwalithi yerabha ephansi, ukuguga kalula, ukuwohloka kokuminyanisa kwesikhathi eside, nokuqhekeka kwe-extrusion.Ngakho-ke, abanye abakhiqizi ngokuvamile bakhetha irabha ye-EPDM nerabha ye-nitrile futhi basebenzisa irabha yemvelo ngamanani amancane.Kwenqatshelwe ngokuphelele ukuxuba irabha egaywe kabusha ukuze kuthuthukiswe ukumelana nokuguga kanye nokumelana nokuguga kwendandatho yokuvala.
②Ivalve uvemvane evalwe ngensimbi ngokuvamile yamukela isakhiwo esingenasici, ikakhulukazi ukwakheka kwe-eccentric enezinhlangothi ezintathu, ngenxa yokunwebeka okuncane kophawu.I-valve uvemvane evalwe ngensimbi ekuqaleni yayisetshenziswa kumapayipi omusi anengcindezi ephezulu, futhi intengo ibiza kakhulu.Indawo yayo yokuvala akulula ukuba yonakaliswe ngesikhathi sokusebenza, kodwa ukunemba kwayo kokukhiqiza kuphezulu, futhi uma ivuza, kuba nzima ukuyilungisa.
Isikhathi sokuthumela: Oct-18-2021