Amavalvu e-Butterfly ayizingxenye ezibalulekile zokulawula ukuhamba kwamapayipi ezimbonini ezahlukene. Phakathi kwezinhlobo ezahlukene ezitholakalayo, amavalvu e-butterfly e-wafer ne-flange kanye namavalvu e-butterfly ane-flange eyodwa avelele ngezici zawo ezihlukile kanye nezinhlelo zokusebenza. Kulokhu kuhlaziywa kokuqhathanisa, sizohlola ukwakheka, ukusebenza, izinzuzo, kanye nemikhawulo yalezi zinhlobo ezintathu ukuze siqonde ukufaneleka kwazo ezimweni ezahlukene.
Qaphela: Lapha sibhekisela ku-Centerline Valve,I-Concentric Valve.
OKUNYE. Isingeniso
1. Iyini ivalvu yebhabhathane eliyi-wafer
I-Wafer Butterfly Valve: Lolu hlobo lwevalvu lwenzelwe ukufakwa phakathi kwama-flange amabili epayipi, ngokuvamile i-flange ye-wafer. Inephrofayili encane enepuleti levalvu elijikeleza ku-shaft ukulawula ukugeleza.
Izinzuzo ze-valve ye-wafer butterfly:
· Ivalvu yebhabhathane yohlobo lwe-wafer inobude obufushane besakhiwo, okusho ukuthi iyisakhiwo esincane, okwenza ifaneleke kakhulu ezindaweni ezinesikhala esincane.
· Zihlinzeka ngokuvala okuqinile okunezinhlangothi ezimbili futhi zifanele izinhlelo ezinezidingo zokucindezela okuphansi kuya kokuphakathi.
· Inzuzo eyinhloko yevalvu yebhabhathane ye-wafer ukwakheka kwayo okufushane.
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2. Iyini i-flange butterfly valve
I-valve yebhabhathane ye-Flange: Ivalvu yebhabhathane yeflange inamaflange ahlanganisiwe kuzo zombili izinhlangothi futhi ingaboshwa ngqo phakathi kwamaflange asepayipini. Uma kuqhathaniswa namavalvu okuncinza, anobude obude bokwakhiwa.
Izinzuzo ze-flange butterfly valve:
· I-flange butterfly valve inesiphetho se-flange esiboshwe ngqo kwi-flange yepayipi. Lo mklamo wandisa ukuqina nokuqina, okwenza ifaneleke ukusetshenziswa kwamandla aphezulu lapho ukuxhumana okuphephile kubalulekile khona.
· Amavalvu e-flange butterfly kulula ukuwafaka nokuwahlukanisa, okwenza kube lula ukugcinwa kwawo futhi konge izindleko.
· Ivalvu yebhathane eliyi-flange ingafakwa ekugcineni kwepayipi futhi isetshenziswe njengevalvu yokugcina.
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3. Iyini ivalvu yebhabhathane elilodwa le-flange
Isakhiwo se-ivalvu yebhabhathane elilodwa le-flangeukuthi kukhona i-flange eyodwa phakathi nendawo ye-longitudinal yomzimba we-valve, edinga ukuqiniswa ku-flange yepayipi ngamabhawodi amade.
Izinzuzo ze-single flange butterfly valve:
· Inobude besakhiwo sevalvu yovemvane eboshwe futhi ithatha indawo encane.
· Izici zokuxhuma eziqinile zifana neze-flange butterfly valves.
· Kufanelekela izinhlelo zokucindezela okuphakathi nokuphansi.
OKUBILI. umehluko
1. Izindinganiso zokuxhuma:
a) I-valve ye-butterfly ye-Wafer: Le valve ngokuvamile iyindinganiso yokuxhumana okuningi futhi ingahambisana ne-DIN PN6/PN10/PN16, ASME CL150, JIS 5K/10K, njll.
b) I-Flange butterfly valve: ngokuvamile uxhumano olulodwa olujwayelekile. Sebenzisa kuphela uxhumano olujwayelekile lwe-flange oluhambisanayo.
c) I-valve yebhabhathane eliyi-flange eyodwa: ngokuvamile inokuxhumana okujwayelekile okukodwa.
2. Ububanzi besayizi
a) Ivalvu yebhabhathane eliyi-wafer: DN15-DN2000.
b) Ivalvu yebhabhathane yeFlange: DN40-DN3000.
c) Ivalvu yebhabhathane eliyi-flange eyodwa: DN700-DN1000.
3. Ukufakwa:
a) Ukufakwa kwamavalvu e-wafer butterfly:
Ukufakwa kulula njengoba kungafakwa phakathi kwama-flange amabili kusetshenziswa ama-stud bolts amane amade. Ama-bolts adlula emzimbeni we-flange kanye ne-valve, lokhu kusetha kuvumela ukufakwa nokususwa okusheshayo.
b) Ukufakwa kwe-flange butterfly valve:
Njengoba kunezingqimba ezihlanganisiwe ezinhlangothini zombili, amavalvu e-flange makhulu futhi adinga isikhala esengeziwe. Anamathele ngqo ku-flange yepayipi enezikhonkwane ezimfushane.
c) Ukufakwa kwevalvu yebhabhathane elilodwa le-flange:
kudinga amabhawodi amade anamakhanda amabili ahlanganiswe phakathi kwama-flange amabili epayipi. Inani lamabhawodi adingekayo liboniswe kuthebula elingezansi.
| I-DN700 | I-DN750 | I-DN800 | I-DN900 | I-DN1000 |
| 20 | 28 | 20 | 24 | 24 |
4. Izindleko:
a) I-valve ye-butterfly ye-Wafer: Uma iqhathaniswa nama-valve e-flange, ama-valve e-wafer avame ukusebenza kahle kakhulu. Ubude bawo obufushane bokwakha budinga izinto ezincane futhi budinga ama-bolts amane kuphela, ngaleyo ndlela kunciphisa izindleko zokukhiqiza nezokufaka.
b) I-Flange Butterfly Valve: Ama-Flange valve avame ukubiza kakhulu ngenxa yokwakhiwa kwawo okuqinile kanye ne-integral flange. Ama-bolts kanye nokufakwa okudingekayo ekuxhunyweni kwe-flange kuholela ezindlekweni eziphezulu.
c) Ivalvu yebhabhathane elilodwa le-flange:
Ivalvu yebhabhathane ene-flange eyodwa ine-flange eyodwa encane kunevalvu yebhabhathane ene-flange ephindwe kabili, futhi ukufakwa kwayo kulula kunevalvu yebhabhathane ene-flange ephindwe kabili, ngakho intengo iphakathi nendawo.
5. Izinga lokucindezela:
a) I-valve ye-butterfly ye-Wafer: Uma iqhathaniswa ne-flange valve, izinga lokucindezela elifanele le-valve ye-butterfly ye-wafer liphansi. Zifanele ukusetshenziswa kwe-PN6-PN16 ene-voltage ephansi.
b) Ivalvu yebhathane yeFlange: Ngenxa yesakhiwo sayo esiqinile kanye neflange ehlanganisiwe, ivalvu yeflange ifanele amazinga aphezulu okucindezela, i-PN6-PN25, (amavalvu ebhathane avaliwe kanzima angafinyelela ku-PN64 noma ngaphezulu).
c) Ivalvu yebhabhathane eliyi-flange eyodwa: phakathi kwevalvu yebhabhathane eliyi-wafer nevalvu yebhabhathane eliyi-flange, efanelekile ukusetshenziswa kwe-PN6-PN20.
6. Isicelo:
a) I-Wafer Butterfly Valve: Isetshenziswa kakhulu ezinhlelweni ze-HVAC, ezitshalweni zokwelashwa kwamanzi kanye nasezisetshenzisweni zezimboni ezinomfutho ophansi lapho isikhala silinganiselwe futhi ukusebenza kahle kwezindleko kubalulekile. Ukusetshenziswa ezinhlelweni zamapayipi lapho isikhala silinganiselwe khona kanye nokwehla komfutho ophansi kuyamukeleka. Zinikeza ukulawula ukugeleza okusheshayo nokusebenzayo ngentengo ephansi kunezivalo ezigobile.
b) I-Flange butterfly valve: Ama-Flange valve asetshenziswa ezimbonini ezifana namafutha negesi, ukucubungula amakhemikhali kanye nokukhiqizwa kwamandla, lapho amazinga aphezulu okucindezela kanye nokusebenza kahle kokuvala kubalulekile khona. Ngoba ama-flange butterfly valve angaletha amazinga aphezulu okucindezela kanye nokuvala okungcono kanye nokuxhumeka okuqinile. Futhi i-flange butterfly valve ingafakwa ekugcineni kwepayipi.
c) Ivalvu yebhabhathane elilodwa le-flange:
Amavalvu e-butterfly e-single flange avame ukusetshenziswa ezinhlelweni zamanzi zasemadolobheni, ezinhlelweni zezimboni ezifana namakhemikhali, imikhiqizo kaphethiloli kanye namanzi angcolile ezimbonini, alawula ukufudumeza noma ukupholisa amanzi ezinhlelweni ze-HVAC, ukwelashwa kwendle, izimboni zokudla neziphuzo kanye neminye imikhakha.
OKUTHATHU. ekuphetheni:
Amavalvu e-wafer butterfly, amavalvu e-flange butterfly kanye namavalvu e-single flange butterfly anezinzuzo ezihlukile futhi afaneleka ezinhlelweni ezahlukene. Amavalvu e-wafer butterfly ayathandwa ngenxa yobude bawo obufushane besakhiwo, ukwakheka okufushane, ukusebenza okubiza kakhulu kanye nokufakwa okulula. Amavalvu e-single flange butterfly nawo afaneleka ezinhlelweni zokucindezela eziphakathi nendawo neziphansi ezinesikhala esincane ngenxa yesakhiwo sawo esifushane. Ngakolunye uhlangothi, amavalvu e-Flanged asebenza kahle kakhulu ekusetshenzisweni kokucindezela okuphezulu okudinga ukusebenza kahle kokuvala kanye nokwakhiwa okuqinile, kodwa abiza kakhulu.
Ngamafuphi, uma imvume yepayipi ilinganiselwe futhi ingcindezi inguhlelo lwe-DN≤2000 olunomfutho ophansi, ungakhetha i-valve ye-wafer butterfly;
Uma indawo yokungena kwepayipi ilinganiselwe futhi ingcindezi ingumfutho ophakathi noma ophansi, 700≤DN≤1000, ungakhetha ivalvu eyodwa yeflange butterfly;
Uma imvume yepayipi yanele futhi ingcindezi inguhlelo lwe-DN≤3000 oluphakathi noma oluphansi, ungakhetha i-flange butterfly valve.