Iivalvu zebhabhathane zizinto ezibalulekileyo zokulawula ukuhamba kwemibhobho kumashishini ahlukeneyo. Phakathi kweentlobo ezahlukeneyo ezikhoyo, iivalvu zebhabhathane ze-wafer kunye ne-flange kunye neevalvu zebhabhathane ezine-flange enye zibalaseleyo ngeempawu zazo ezikhethekileyo kunye nokusetyenziswa kwazo. Kolu hlalutyo lokuthelekisa, siza kuhlola uyilo, ukusebenza, iingenelo kunye nemida yezi ntlobo zintathu ukuze siqonde ukufaneleka kwazo kwiimeko ezahlukeneyo.
Qaphela: Apha sibhekisa kwiCenterline Valve,Ivalvu Eqinileyo.
INYE. Intshayelelo
1. Yintoni ivalvu yebhabhathane eliyi-wafer
Ivalvu yeButterfly yeWafer: Olu hlobo lwevalvu lwenzelwe ukufakwa phakathi kweeflange ezimbini zepayipi, ngokuqhelekileyo iflange ye-wafer. Ineprofayili encinci enepleyiti yevalvu ejikeleza kwishafti ukulawula ukuhamba kwamanzi.
Iingenelo zevalvu yebhabhathane ye-wafer:
· Ivalvu yebhabhathane yohlobo lwe-wafer inobude obufutshane besakhiwo, oko kuthetha ukuba sisakhiwo esincinci, nto leyo eyenza ukuba ifaneleke kakhulu kwiindawo ezinendawo encinci.
· Zibonelela ngokuvala okuqinileyo, kwaye zifanelekile kwiinkqubo ezineemfuno zoxinzelelo oluphantsi ukuya koluphakathi.
· Eyona nzuzo iphambili yevalvu yebhabhathane ye-wafer yidizayini yayo encinci.
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2. Yintoni ivalvu yebhabhathane yeflange
Ivalvu yebhabhathane yeFlange: Ivalvu yebhabhathane yeflange ineeflange ezidibeneyo kumacala omabini kwaye inokubotshelelwa ngokuthe ngqo phakathi kweeflanges ezikwipayipi. Xa kuthelekiswa neevalvu ezincitshisiweyo, zinobude obude bokwakha.
Iingenelo zevalvu yebhabhathane yeflange:
· Ivalvu yebhabhathane yeflange inesiphelo seflange esibotshelelwe ngqo kwiflange yepayipi. Olu yilo lonyusa ukuqina nozinzo, nto leyo eyenza ukuba ifaneleke kwii-high-voltage apho uqhagamshelo olukhuselekileyo lubalulekile.
· Iivalvu zebhabhathane zeFlange kulula ukuzifaka nokuziqhaqha, nto leyo eyenza kube lula ukugcinwa kwazo kwaye kongiwe iindleko.
· Ivalvu yebhabhathane yeflange ingafakwa ekupheleni kombhobho kwaye isetyenziswe njengevalvu yokuphela.
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3. Yintoni ivalvu yebhabhathane enye yeflange
Ulwakhiwo lweivalvu yebhabhathane enye yeflangekukuba kukho i-flange enye embindini we-longitudinal yomzimba we-valve, ekufuneka iqiniswe kwi-flange yombhobho ngee-bolts ezinde.
Iingenelo zevalvu yebhabhathane yeflange enye:
· Inobude besakhiwo sevalvu yebhabhathane ebotshelelweyo kwaye ithatha indawo encinci.
· Iimpawu zoqhagamshelo oluqinileyo zifana nezo zeevalvu zebhabhathane ezijijekileyo.
· Ifanelekile kwiinkqubo zoxinzelelo oluphakathi noluphantsi.
EZIMBINI. umahluko
1. Imigangatho yoqhagamshelo:
a) Ivalvu yebhabhathane yeWafer: Le valve iqhele ukuba yimigangatho yoqhagamshelo oluninzi kwaye ingahambelana neDIN PN6/PN10/PN16, ASME CL150, JIS 5K/10K, njl.
b) Ivalvu yebhabhathane yeFlange: ngokubanzi luqhagamshelo olunye oluqhelekileyo. Sebenzisa kuphela uqhagamshelo oluqhelekileyo lweflange oluhambelanayo.
c) Ivalvu yebhabhathane yeflange enye: ngokubanzi ikwanayo noqhagamshelo olunye oluqhelekileyo.
2. Uluhlu lobungakanani
a) Ivalvu yebhabhathane yeWafer: DN15-DN2000.
b) Ivalvu yebhabhathane yeFlange: DN40-DN3000.
c) Ivalvu yebhabhathane yeflange enye: DN700-DN1000.
3. Ufakelo:
a) Ukufakelwa kweevalvu zebhabhathane ze-wafer:
Ukufakela kulula kakhulu kuba zinokudityaniswa phakathi kweeflange ezimbini kusetyenziswa ii-stud bolts ezinde ezi-4. Ii-bolts zidlula emzimbeni we-flange kunye ne-valve, olu seto luvumela ukufakwa nokususwa ngokukhawuleza.
b) Ukufakelwa kwevalvu yebhabhathane yeflange:
Ekubeni kukho ii-flanges ezidibeneyo kumacala omabini, iivalvu ze-flange zikhulu kwaye zifuna indawo engaphezulu. Zinamathele ngqo kwi-flange yombhobho ngee-stud ezimfutshane.
c) Ukufakelwa kwevalvu yebhabhathane eneflange enye:
ifuna iibholithi ezinde ezineentloko ezimbini ezibekwe phakathi kweeflange ezimbini zombhobho. Inani leebholithi ezifunekayo liboniswe kwitheyibhile engasezantsi.
| DN700 | DN750 | DN800 | DN900 | DN1000 |
| 20 | 28 | 20 | 24 | 24 |
4. Ixabiso:
a) Ivalvu yebhabhathane yeWafer: Xa ithelekiswa neevalvu zeflange, iivalvu zewafer zihlala zingabizi kakhulu. Ubude bazo obufutshane bokwakha bufuna izinto ezincinci kwaye zifuna iibolthi ezine kuphela, nto leyo enciphisa iindleko zokuvelisa nezokufakela.
b) Ivalvu yebhabhathane yeFlange: Iivalvu zeFlange zidla ngokubiza kakhulu ngenxa yokwakhiwa kwazo okuqinileyo kunye neflange edibeneyo. Iibholithi kunye nokufakelwa okufunekayo kuqhagamshelo lweflange kubangela iindleko eziphezulu.
c) Ivalvu yebhabhathane yeflange enye:
Ivalvu yebhabhathane eneflange enye ineflange enye engaphantsi kunevalvu yebhabhathane eneflange ezimbini, kwaye ukufakwa kwayo kulula kunevalvu yebhabhathane eneflange ezimbini, ngoko ke ixabiso liphakathi.
5. Inqanaba loxinzelelo:
a) Ivalvu yebhabhathane yeWafer: Xa ithelekiswa nevalvu yeflange, inqanaba loxinzelelo olufanelekileyo lwevalvu yebhabhathane yewafer liphantsi. Zifanelekile ukusetyenziswa kwePN6-PN16 enevolthi ephantsi.
b) Ivalvu yebhabhathane yeFlange: Ngenxa yesakhiwo sayo esiqinileyo kunye neflange edibeneyo, ivalvu yeflange ifanelekile kumanqanaba aphezulu oxinzelelo, iPN6-PN25, (iivalvu zebhabhathane ezivalwe ngokuqinileyo zinokufikelela kwiPN64 okanye ngaphezulu).
c) Ivalvu yebhabhathane eneflange enye: phakathi kwevalvu yebhabhathane ene-wafer kunye nevalvu yebhabhathane eneflange, efanelekileyo kwizicelo ze-PN6-PN20.
6. Isicelo:
a) I-Wafer Butterfly Valve: Isetyenziswa kakhulu kwiinkqubo ze-HVAC, kwizityalo zonyango lwamanzi nakwiindawo zoshishino ezinoxinzelelo oluphantsi apho indawo incinci kwaye iindleko zisebenza kakuhle. Ukusetyenziswa kwiinkqubo zemibhobho apho indawo incinci kwaye uxinzelelo oluphantsi luyamkeleka. Zibonelela ngolawulo lokuhamba kwamanzi olukhawulezayo nolusebenzayo ngexabiso eliphantsi kuneevalvu ezijikelezileyo.
b) Ivalvu yebhabhathane yeFlange: Iivalvu zeFlange zisetyenziswa kumashishini afana neoyile negesi, ukucubungula iikhemikhali kunye nokuvelisa umbane, apho amanqanaba aphezulu oxinzelelo kunye nokusebenza kakuhle kokuvala kubalulekile. Kuba iivalvu zebhabhathane zeFlange zinokubonelela ngamanqanaba aphezulu oxinzelelo kunye nokuvala okungcono kunye nokudibanisa okuqinileyo. Kwaye ivalvu yebhabhathane yeFlange ingafakwa ekupheleni kombhobho.
c) Ivalvu yebhabhathane yeflange enye:
Iivalvu zebhabhathane ezine-flange enye zisetyenziswa kakhulu kwiinkqubo zokubonelela ngamanzi ezidolophini, kwiinkqubo zoshishino ezifana neekhemikhali, iimveliso zepetroli kunye namanzi amdaka emizi-mveliso, ukulawula ukufudumeza okanye ukupholisa amanzi kwiinkqubo ze-HVAC, unyango lwelindle, imizi-mveliso yokutya neziselo kunye neminye imimandla.
EZINTATHU. Ukuqukumbela:
Iivalvu zebhabhathane zeWafer, iivalvu zebhabhathane zeFlange kunye neevalvu zebhabhathane zeFlange enye zonke zineengenelo ezikhethekileyo kwaye zifanelekile kwiindlela ezahlukeneyo zokusetyenziswa. Iivalvu zebhabhathane zeWafer zithandwa ngenxa yobude bazo obufutshane, uyilo oluncinci, ukusebenza okubiza kakhulu kunye nokufakelwa okulula. Iivalvu zebhabhathane zeFlange enye zikwafanelekile kwiinkqubo zoxinzelelo oluphakathi noluphantsi ezinesithuba esincinci ngenxa yesakhiwo sazo esifutshane. Iivalvu zeFlanged, kwelinye icala, zibalasele kwiindlela zoxinzelelo oluphezulu ezifuna ukusebenza kakuhle kokuvala kunye nolwakhiwo oluqinileyo, kodwa zibiza kakhulu.
Ngamafutshane, ukuba imvume yombhobho incinci kwaye uxinzelelo luphantsi kwinkqubo ye-DN≤2000, ungakhetha ivalvu yebhabhathane ye-wafer;
Ukuba indawo yokungena kombhobho incinci kwaye uxinzelelo luphakathi okanye luphantsi, 700≤DN≤1000, ungakhetha ivalvu yebhabhathane yeflange enye;
Ukuba indawo yokungena kombhobho yanele kwaye uxinzelelo luphakathi okanye luphantsi lwenkqubo ye-DN≤3000, ungakhetha ivalvu yebhabhathane yeflange.