Amavalvu ovemvane ayizingxenye ezibalulekile zokulawula ukuhamba kwamapayipi ezimbonini ezihlukahlukene.Phakathi kwezinhlobo ezahlukene ezitholakalayo, amavalvu ovemvane ayisilutshwana nama-flange namavalve uvemvane ane-flange elilodwa agqama ngezici nezici zawo ezihlukile.Kulokhu kuhlaziya okuqhathanisayo, sizohlola ukuklama, ukusebenza, izinzuzo, kanye nemikhawulo yalezi zinhlobo ezintathu ukuze siqonde ukufaneleka kwazo ezimeni ezahlukene.
ENYE.Isingeniso
1. Iyini ivalve yevemvane eyilucwecwana
I-Wafer Butterfly Valve: Lolu hlobo lwe-valve luklanyelwe ukufakwa phakathi kwama-flange amapayipi amabili, ngokuvamile i-wafer flange.Inephrofayili encane ene-valve plate ezungeza ku-shaft ukulawula ukugeleza.
Izinzuzo ze-wafer butterfly valve:
· I-valve ye-butterfly yohlobo lwe-wafer inobude obufushane besakhiwo, okusho ukuthi iyisakhiwo esincane, esiyenza ifaneleke kakhulu ezindaweni ezinendawo elinganiselwe.
· Ahlinzeka ngezindlela ezimbili, ukuvalwa okuqinile futhi afanele amasistimu anezidingo zokucindezela okuphansi kuya kokuphakathi.
· Inzuzo eyinhloko ye-valve ye-butterfly eyi-wafer design yayo ehlangene.
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2. Iyini i-valve butterfly valve
I-valve ye-butterfly ye-flange: I-valve uvemvane lwe-flange inama-flange abalulekile nhlangothi zombili futhi ingaboshelwa ngokuqondile phakathi kwama-flange epayipini.Uma kuqhathaniswa nama-valve e-pinch, anobude obude bokwakha.
Izinzuzo ze-valve ye-butterfly ye-flange:
· I-valve uvemvane lwe-flange inomkhawulo we-flange oboshwe ngokuqondile ku-flange yepayipi.Lo mklamo ukhulisa ukuqina nokuzinza, okuwenza ulungele izinhlelo zokusebenza ezinamandla kagesi lapho ukuxhumana okuphephile kubalulekile.
Ama-valve ovemvane be-Flange nawo kulula ukuwafaka nokuwahlakaza, ngaleyo ndlela kube lula ukunakekela nokonga izindleko.
· Ivalve yevemvane ye-flange ingafakwa ekugcineni kwepayipi futhi isetshenziswe njengevalve yokuvala.
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3.Iyini ivalve yevemvane ye-flange eyodwa
Isakhiwo se-i-valve ye-butterfly eyodwa ye-flangeukuthi kukhona i-flange eyodwa phakathi kwe-longitudinal yomzimba we-valve, okudingeka ilungiswe ku-flange yepayipi ngamabholithi amade.
Izinzuzo ze-valve ye-butterfly eyodwa ye-flange:
· Inobude besakhiwo sevalve uvemvane eboshwe futhi ithatha indawo encane.
· Izici zokuxhuma eziqinile ziyefana nalezo zamavalve ovemvane be-flange.
· Ifanele izinhlelo zokucindezela okuphakathi nendawo neziphansi.
OKUBILI.umehluko
1. Amazinga okuxhumana:
a) I-valve uvemvane olucwebezelayo: Le valve ngokuvamile iyindinganiso yokuxhumana okuningi futhi ingahambisana ne-DIN PN6/PN10/PN16, ASME CL150, JIS 5K/10K, njll.
b) I-valve uvemvane lwe-Flange: ngokuvamile ukuxhumana okujwayelekile okukodwa.Sebenzisa kuphela ukuxhumana okuhambisanayo kwe-flange okujwayelekile.
c) I-valve ye-butterfly ye-flange eyodwa: ngokuvamile futhi inokuxhumana okujwayelekile okukodwa.
2. Ibanga losayizi
a) I-Wafer butterfly valve: DN15-DN2000.
b) I-valve ye-butterfly ye-Flange: DN40-DN3000.
c) I-valve ye-butterfly ye-flange eyodwa: DN700-DN1000.
3. Ukufakwa:
a) Ukufakwa kwamavalvu evemvane eyisicwecwana:
Ukufaka kulula njengoba kungafakwa phakathi kwama-flange amabili kusetshenziswa amabhawodi amade ama-4.Amabhothi adlula emzimbeni we-flange kanye ne-valve, lokhu kusetha kuvumela ukufakwa nokususwa ngokushesha.
b) Ukufakwa kwe-valve butterfly valve:
Njengoba kukhona ama-flange abalulekile ezinhlangothini zombili, ama-valve e-flange makhulu futhi adinga indawo eyengeziwe.Zilungiswe ngqo ku-flange yepayipi enezikhonkwane ezimfushane.
c) Ukufakwa kwe-valve ye-butterfly eyodwa ye-flange:
idinga amabhawodi amade anamakhanda akabili 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) Ivalve uvemvane olulucwecwana: Uma kuqhathaniswa namavalve e-flange, amavalvu amaluli ngokuvamile awonga kakhulu.Ubude babo obufushane bokwakha budinga impahla encane futhi budinga amabhawodi amane kuphela, ngaleyo ndlela kunciphisa izindleko zokukhiqiza nokufaka.
b) I-Flange Butterfly Valve: Ama-valve e-Flange avame ukubiza kakhulu ngenxa yokwakhiwa kwawo okuqinile kanye ne-flange ebalulekile.Amabhawodi nokufakwa okudingekayo ekuxhumekeni kwe-flange kubangela izindleko eziphakeme.
c) Ivalve yevemvane ye-flange eyodwa:
I-valve ye-butterfly eyodwa-flange ine-flange eyodwa encane kune-valve ye-butterfly ephindwe kabili, futhi ukufakwa kulula kune-valve ye-butterfly ephindwe kabili, ngakho intengo iphakathi.
5. Izinga lokucindezela:
a) I-valve uvemvane olulucwecwana: Uma kuqhathaniswa nevalve ye-flange, izinga lokucindezela elisebenzayo le-valve uvemvane oluyisicwecwana liphansi.Zifanele izicelo eziphansi ze-voltage PN6-PN16.
b) I-valve ye-butterfly ye-Flange: Ngenxa yesakhiwo sayo esiqinile kanye ne-flange ebalulekile, i-valve ye-flange ifanele amazinga aphezulu okucindezela, i-PN6-PN25, (ama-butterfly valves avaliwe kanzima angafinyelela ku-PN64 noma ngaphezulu).
c) I-valve yevemvane ye-flange eyodwa: phakathi kwe-valve ye-butterfly eyi-wafer kanye ne-valve butterfly valve, ilungele izinhlelo zokusebenza ze-PN6-PN20.
6.Uhlelo lokusebenza:
a) I-Wafer Butterfly Valve: Ivamise ukusetshenziswa ezinhlelweni ze-HVAC, izindawo zokuhlanza amanzi kanye nezinhlelo zokusebenza zezimboni ezinomfutho ophansi lapho isikhala sinomkhawulo kanye nokusebenza kahle kwezindleko kubalulekile.Ukuze isetshenziswe ezinhlelweni zamapayipi lapho isikhala silinganiselwe futhi ukwehla komfutho ophansi kwamukelekile.Banikeza ukulawulwa kokugeleza okusheshayo, okuphumelelayo ngentengo ephansi kunama-valve ane-flanged.
b) I-valve uvemvane lwe-Flange: Amavalvu e-Flange asetshenziswa ezimbonini ezifana nowoyela negesi, ukucubungula amakhemikhali nokukhiqiza amandla, lapho amazinga okucindezela aphezulu nokusebenza okuhle kakhulu kokuvala kubalulekile.Ngoba ama-valve ovemvane be-flange angaletha amazinga aphezulu okucindezela nokuvala okungcono nokuxhumana okuqinile.Futhi i-valve ye-butterfly ye-flange ingafakwa ekupheleni kwepayipi.
c) Ivalve yevemvane ye-flange eyodwa:
Ama-valve e-butterfly e-flange eyodwa avame ukusetshenziswa ezinhlelweni zokuhlinzeka ngamanzi emadolobheni, izinhlelo zezimboni ezifana namakhemikhali, imikhiqizo ye-petroleum kanye namanzi angcolile ezimbonini, alawula ukushisa noma ukupholisa amanzi ezinhlelweni ze-HVAC, ukuthuthwa kwendle, izimboni zokudla neziphuzo kanye neminye imikhakha.
AMATHATHU.Ekuphetheni:
Ama-valve evemvane eyi-wafer, ama-valve uvemvane e-flange kanye nama-valve uvemvane we-flange eyodwa konke kunezinzuzo ezihlukile futhi afanele ukusetshenziswa okuhlukile.Amavalvu emvemvane eyi-wafer athandwa ngobude bawo obufushane besakhiwo, idizayini ehlangene, ukusebenza kwezindleko eziphakeme kanye nokufaka kalula.Ama-valve evemvane ye-flange eyodwa nawo alungele izinhlelo zokucindezela okuphakathi nendawo neziphansi ezinendawo elinganiselwe ngenxa yesakhiwo sazo esifushane.Ngakolunye uhlangothi, ama-valve anama-flanged ahamba phambili ezinhlelweni zokucindezela okukhulu ezidinga ukusebenza kahle kokuvala nokwakhiwa okumangelengele, kodwa zibiza kakhulu.
Ngamafuphi, uma imvume yepayipi inqunyelwe futhi ingcindezi ingcindezi ephansi yesistimu ye-DN≤2000, ungakhetha i-valve butterfly valve;
Uma imvume yepayipi ilinganiselwe futhi ingcindezi iphakathi noma ingcindezi ephansi, 700≤DN≤1000, ungakhetha i-valve ye-butterfly eyodwa ye-flange;
Uma imvume yepayipi kwanele futhi ingcindezi iphakathi noma ingcindezi ephansi uhlelo DN≤3000, ungakhetha flange butterfly valve.