Ivalvu Yebhabhathane E-Eccentric Ethathu
Iivalvu yebhabhathane engavamile kathathu— eyaziwa nangokuthi i-triple offset butterfly valve — iyi-valve ye-butterfly esebenza kahle kakhulu eyenzelwe ukusetshenziswa kokujikeleza okunomfutho ophezulu, izinga lokushisa eliphezulu, kanye nemvamisa ephezulu. Nakuba ama-butterfly valve ahlanganiswe nerabha aqinile enikeza ukuthembeka okuqinisekisiwe kanye nokusebenza kahle kwezindleko zesevisi evamile, awafaneleki ezimweni ezinzima njengamazinga okushisa aphezulu noma amaza okusebenza aphezulu kakhulu. Ama-butterfly valve avamile aqinile abhekana neminye yale mikhawulo, kodwa ukusebenza kwawo kokuvala ngaphansi kwezimo ezidinga kakhulu bekulokhu kuyinkinga emlandweni. I-butterfly valve e-triple eccentric yathuthukiswa ngqo ukuze kunqotshwe le mikhawulo.
Isihlalo siyingxenye yomzimba wevalvu, sinezingqimba zokuhlala ezilungiselelwe kahle kanye nezingubo zokuvimbela ukugqwala ezifanele izigidi zemijikelezo yokusebenza. Ukwakhiwa kwensimbi engagqwali kunikeza ukumelana nokugqwala, futhi izinto zokushisa okuphezulu ziyatholakala ezindaweni ezishisayo ezidinga kakhulu. Izindandatho zokuvala ezithambile ezinezingqimba eziningi noma izindandatho zokuvala zensimbi eqinile zinamathele kudiski, okwenza ivalvu imelane kakhulu nokushaqeka kokushisa, ukuphakama kwengcindezi, kanye nokugqwala uma kuqhathaniswa namavalvu ebhabhathane avamile.
Akukho ukuvuza okutholakala ngendandatho yokuvala yensimbi engagqwali ehlanganisiwe efakwe kwidiski. I-geometry ehlukile kathathu engavamile ivumela ukujikeleza kwe-engeli yesokudla ngaphandle kokungqubuzana — kususa konke ukuxhumana phakathi kwesihlalo nendandatho yokuvala phakathi nokushaya okungu-90°. Lokhu kunciphisa kakhulu i-torque yokusebenza, okuvumela ukuthi kuchazwe i-actuator encane futhi engabizi kakhulu.
Uma ivala, indlela yokudlulisa ikhulisa i-torque ukuze inikeze ukuvala okuqinile nokunezinxephezelo. Le ndlela yokudlulisa ithuthukisa ukusebenza kokuvala ngasikhathi sinye futhi yandisa impilo yesevisi yevalvu.
- 1Umgodi we-valve ubekwe ngemuva komugqa ophakathi wediski, okuvumela indandatho yokuvala ukuthi ivaleke ngokuphelele esihlalweni se-valve sonke ngaphandle kokuphazamiseka.
- 2Umugqa ophakathi womgodi wevalvu uhlukaniswe kusukela kumugqa ophakathi wepayipi kanye nomugqa ophakathi wevalvu, okususa ukuphazamiseka ngesikhathi sokuvula nokuvala.
- 3I-axis yekhoni yesihlalo iyaphambuka emgqeni ophakathi we-valve shaft, isusa ukungqubuzana kulo lonke uhlaselo oluphelele futhi ifinyelele ukuvalwa kokucindezela okufanayo nxazonke kwesihlalo sonke.
| Umklamo | I-API 609 / ASME B16.34 |
| Qeda uxhumano | I-Wafer / Lug / Flanged / Buttweld |
| Ukusebenza | Okwenziwa ngesandla / Okwenziwa ngomoya / Okusebenza ngogesi |
| Ububanzi bosayizi | I-NPS 2″–60″ (DN50–DN1500) |
| Isilinganiso sokucindezela | Isigaba se-ASME 150 / 300 / 600 / 900 | PN16 / PN25 / PN40 / PN63 / PN100 |
| I-Flange ejwayelekile | EN 1092 / ANSI B16.5 / BS 4504 / BS 10 / AS 2129 |
| Ubuso nobuso | I-ANSI B16.10 / EN 558-1 |
| Izinga lokushisa | −29°C kuya ku-450°C (kuye ngokuthi izinto ezikhethiwe zingakanani) |
| Umzimba | Insimbi yekhabhoni / Insimbi engagqwali / I-Duplex SS |
| Idiski | Insimbi yekhabhoni / Insimbi engagqwali / Insimbi ye-Duplex SS / Insimbi ye-alloy |
| Isiqu | Insimbi engu-17-4PH / Duplex SS / Alloy |
| Isihlalo somzimba | 13Cr / SS304 / SS316 / Stellite enobuso obuqinile |
| Indandatho yokuvala | Izendlalelo eziningi (i-SS + i-Graphite noma i-SS + i-PTFE) / Insimbi ibe yinsimbi |
| Ukupakisha | I-graphite eguquguqukayo |
| I-NACE MR0175 | Ukwaziswa ngesipho |










