Flange (sae flange JBZQ 4187-97) kuj hu ua flange lossis flange.Cov khoom uas txuas cov yeeb nkab rau cov yeeb nkab rau ib leeg, txuas rau cov yeeb nkab kawg.Muaj qhov nyob hauv flange, thiab cov bolts nruj nreem txuas ob lub flanges.Cov flanges yog kaw nrog gaskets.Flange yeeb nkab fittings xa mus rau cov yeeb nkab fittings nrog flanges (flanges los yog av).Nws tuaj yeem raug cam khwb cia, ntsia hlau lossis welded.
Flange kev twb kev txuas (flange, sib koom ua ke) muaj ib khub ntawm flanges, gasket thiab ob peb bolts thiab ceev.Lub gasket yog muab tso rau ntawm lub sealing nto ntawm ob flanges.Tom qab cov txiv ntseej nruj, lub siab tshwj xeeb ntawm qhov chaw ntawm lub gasket nce mus txog ib qho nqi thiab tom qab ntawd deforms, thiab ua rau lub unevenness ntawm lub sealing nto kom cov kev sib txuas nruj.Flange kev twb kev txuas yog ib tug detachable kev twb kev txuas.Raws li cov khoom sib txuas, nws tuaj yeem muab faib ua lub thawv flange thiab cov yeeb nkab flange.Raws li hom qauv, muaj ib qho flange, voj flange thiab threaded flange.Feem ntau cov flanges muaj xws li tiaj vuam flanges thiab taub qab vuam flanges.Pav ca vuam flanges muaj qhov tsis zoo rigidity thiab haum rau lub sijhawm uas lub siab p≤4MPa.taub qab vuam flanges, tseem hu ua lub caj dab siab flanges, muaj ntau dua rigidity thiab haum rau lub sij hawm uas siab dua thiab kub.
Muaj peb hom flange sealing nto: tiaj sealing nto, haum rau lub sijhawm uas tsis tshua muaj siab thiab tsis muaj tshuaj lom nruab nrab.concave-convex sealing nto, haum rau lub sijhawm uas muaj siab dua me ntsis, tshuaj lom neeg thiab lub sijhawm siab.Lub gasket yog lub nplhaib ua los ntawm cov khoom siv uas tuaj yeem tsim cov yas deformation thiab muaj lub zog tshwj xeeb.Feem ntau ntawm cov gaskets raug txiav los ntawm cov hlau tsis yog hlau, los yog ua los ntawm cov chaw tsim khoom raws li qhov loj me.Cov ntaub ntawv yog asbestos roj hmab daim hlau, asbestos daim hlau, polyethylene daim hlau, thiab lwm yam.Kuj tseem muaj hlau-clad gasket ua los ntawm cov ntaub qhwv tsis yog xim hlau.Kuj tseem muaj qhov txhab gasket ua los ntawm cov hlau nyias nyias thiab asbestos strips.Cov roj hmab zoo tib yam yog tsim rau lub sijhawm uas qhov kub thiab txias qis dua 120 ° C.asbestos roj hmab gaskets yog tsim rau lub sijhawm uas qhov kub ntawm cov dej vapor qis dua 450 ° C, qhov kub ntawm cov roj yog qis dua 350 ° C, thiab lub siab yog qis dua 5MPa.Nruab nrab, feem ntau siv yog acid-resistant asbestos board.Hauv cov cuab yeej siv hluav taws xob thiab cov kav dej, lub lens-puab lossis lwm yam zoo li cov hlau gaskets ua los ntawm tooj liab, aluminium, No. 10 steel, thiab stainless hlau yog siv.Kev sib cuag dav ntawm lub siab-siab gasket thiab sealing nto yog nqaim heev (kab sib cuag), thiab kev ua tiav ntawm sealing nto thiab gasket yog qhov siab.
Flange kev faib tawm: Flanges muab faib ua threaded (wired) flanges thiab vuam flanges.Qhov siab me me txoj kab uas hla muaj ib tug hlau flange, thiab cov high-pressure thiab low-pressure loj diameters siv vuam flanges.Lub thickness ntawm lub phaj flange ntawm qhov sib txawv thiab cov kab uas hla thiab tus naj npawb ntawm cov bolts txuas yog txawv.Raws li cov qib sib txawv ntawm qhov siab, flange pads kuj muaj cov ntaub ntawv sib txawv, xws li cov ntaub qhwv asbestos uas tsis tshua muaj siab, siab siab asbestos pads rau cov ntaub qhwv hlau.
1. Muab faib los ntawm cov khoom siv rau hauv carbon steel, cam khwb cia hlau, hlau alloy, stainless hlau, tooj liab, aluminium alloy, yas, argon, ppc, thiab lwm yam.
2. Raws li txoj kev tsim khoom, nws tuaj yeem muab faib ua forged flange, cam khwb cia flange, vuam flange, dov flange (oversized qauv) 3. Raws li cov qauv tsim, nws tuaj yeem muab faib ua tus qauv hauv tebchaws (tus qauv ntawm Ministry of Chemical. Kev lag luam, roj av txheem, hluav taws xob hluav taws xob tus qauv), American Standard, German Standard, Japanese Standard, Lavxias teb sab Standard, thiab lwm yam.
Ntau lub tshuab ntawm thoob ntiaj teb cov yeeb nkab flange qauv:
1. Flange kev twb kev txuas los yog flange sib koom yog hais txog kev sib txuas foldable uas muaj flanges, gaskets thiab bolts txuas rau ib leeg raws li kev sib txuas ua ke.Pipeline flanges xa mus rau flanges siv rau cov kav dej hauv cov kav dej.Ntawm cov khoom siv, nws hais txog qhov nkag thiab qhov hluav taws xob flanges ntawm cov khoom siv.
2. Ntau lub tshuab ntawm thoob ntiaj teb cov yeeb nkab flange qauv
1) European flange system: German DIN (xws li Soviet Union) British standard BS French standard NF Italian standard UNI
a.Nominal siab: 0.1, 0.25, 0.6, 1.0, 1.6, 2.5, 4.0, 6.4, 10.0, 16.0, 25.0, 32.0, 40.0, Mpa
b.xam txoj kab uas hla: 15 ~ 4000mm (qhov siab tshaj plaws txoj kab uas hla nws txawv nrog rau cov xaiv flange specification thiab flange siab theem)
c.Cov qauv ntawm cov flange: tiaj vuam phaj hom, tiaj vuam nplhaib xoob lub tes tsho hom, curling xoob lub tes tsho hom, taub qab vuam curling ntug xoob lub tes tsho hom, taub qab vuam nplhaib xoob tes tsho hom, taub qab vuam hom, caj dab threaded kev twb kev txuas hom, Integral thiab flanged npog
d.Flange sealing nto muaj xws li: qhov chaw tiaj tus, qhov chaw protruding, concave-convex nto, tus nplaig thiab zawj nto, roj hmab nplhaib sib txuas nto, lens nto thiab diaphragm vuam nto.
e.OCT yeeb nkab flange catalog tus qauv muab los ntawm Soviet Union xyoo 1980 zoo ib yam li German DIN tus qauv, thiab yuav tsis rov ua dua ntawm no.
2) American flange system: American ANSI B16.5 "Steel Pipe Flanges thiab Flanged Fittings" ANSI B16.47A/B "Large Diameter Steel Flanges" B16.36 Orifice Flanges B16.48 Cim Flanges tos.
ib.Nominal siab: 150psi (2.0Mpa), 300psi (5.0Mpa), 400psi (6.8Mpa), 600psi (10.0Mpa), 900psi (15.0Mpa), 1500psi (25.0Mpa), 2500Mpa (42.
b.xam txoj kab uas hla: 6 ~ 4000mm
c.Flange qauv hom: bar welding, socket vuam, threaded kev twb kev txuas, xoob lub tes tsho, taub qab vuam thiab flange npog
d.Flange sealing nto: convex nto, concave-convex nto, tus nplaig thiab zawj nto, hlau nplhaib sib txuas nto
3) JIS yeeb nkab flange: nws feem ntau tsuas yog siv rau pej xeem ua haujlwm hauv cov nroj tsuag petrochemical, thiab tsis muaj kev cuam tshuam thoob ntiaj teb, thiab tsis tau tsim ib qho kev ywj pheej thoob ntiaj teb.
3. kuv lub teb chaws tus qauv txheej txheem rau steel yeeb nkab flanges GB
1) Nominal siab: 0.25Mpa ~ 42.0Mpa
ib.Series 1: PN1.0, PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42 (lub ntsiab series)
b.Series 2: PN0.25, PN0.6, PN2.5, PN4.0 qhov twg PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0 muaj 6 theem ntawm txoj kev Flange loj belongs rau European flange system sawv cev los ntawm German flange, thiab tus so yog American flange system sawv cev los ntawm American flange.Nyob rau hauv tus qauv GB, qhov siab tshaj plaws nominal siab theem ntawm European flange system yog 4Mpa, thiab lub siab tshaj plaws nominal siab theem ntawm American flange system yog 42Mpa.
2) Nominal txoj kab uas hla: 10mm ~ 4000mm
3) Cov qauv ntawm flange: ib qho flange chav tsev flange
ib.Threaded flange
b.Vuam flange, taub qab vuam flange, tiaj vuam flange nrog caj dab, qhov (socket) vuam flange nrog caj dab, phaj hom tiaj vuam flange
c.Lub tes tsho xoob flange, taub qab vuam nplhaib xoob lub tes tsho caj dab flange, taub qab vuam nplhaib xoob lub tes tsho flange, lub tes tsho tiaj tiaj tiaj lub tes tsho xoob flange, phaj hom tig dhau lub tes tsho xoob flange
d.Flange npog (qhov muag tsis pom flange)
e.Hloov flange
f.Thauj tog rau nkoj flange
g.Overlay welding / overlay vuam flange
4) Flange sealing nto: tiaj tus, convex nto, concave-convex nto, tus nplaig thiab zawj nto, nplhaib kev sib txuas nto.
Txheem txheej txheem ntawm cov yeeb nkab flanges feem ntau siv hauv cov twj paj nruag
1. DIN txuj
1) Feem ntau siv cov qib siab: PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250 2) Flange sealing nto: tsa ntsej muag DIN2526C tsa lub ntsej muag flange grooued acc.DIN2512N tus nplaig thiab zawj ntsej muag
2. ANSI txuj
1) Kev ntsuas siab: CL150, CL300, CL600, CL900, CL1500
2) Flange sealing nto: ANSI B 16.5 RF flanges tsa lub ntsej muag flange
3. JIS tus qauv: tsis siv ntau
Feem ntau siv cov qib siab: 10K, 20K.
Flange ntau lawm txheem
Lub teb chaws tus qauv: GB / T9112-2000 (GB9113 · 1-2000 ~ GB9123 · 4-2000)
American Standard: ANSI B16.5 Class150, 300, 600, 900, 1500 (WN, SO, BL, TH, LJ, SW)
Japanese qauv: JIS 5K, 10K, 16K, 20K (PL, SO, BL, WN, TH, SW)
Tus qauv German: DIN2573, 2572, 2631, 2576, 2632, 2633, 2543, 2634, 2545 (PL, SO, WN, BL, TH)
Ministry of Chemical Industry txuj: HG5010-52～HG5028-58, HGJ44-91～HGJ65-91, HG20592-97 series, HG20615-97 series
Cov qauv ntawm Ministry of Machinery: JB81-59～JB86-59, JB/T79-94～JB/T86-94, JB/T74-1994
Txheem lub nkoj siab: JB1157-82～JB1160-82, JB4700-2000～JB4707-2000 B16.47A/B B16.39 B16.48
Post lub sij hawm: Mar-31-2023