Cov Ntawm Flanges

Nov 04, 2020

Hom Flanges

Flange hom

Raws li tau piav ua ntej, feem ntau siv flange hom ASMEB16.5 yog: WeldingNeck, SlipOn, SocketWeld, LapJoint, Threaded thiab Blind flange. Hauv qab no koj yuav pom cov lus qhia luv luv thiab cov lus txhais ntawm txhua hom, ua tiav nrog cov duab ntxaws ntxaws.

Feem ntau flange hom

Most common flange types

Vuam caj dab flange

Vuam Neck Flanges yog yooj yim kom pom ntawm qhov ntev ntev ntev ntev, uas mus maj mam dhau mus rau phab ntsa tuab los ntawm cov yeeb nkab lossis cov haum.

Lub viav vias ntev ntev ua qhov tseem ceeb txhawb nqa rau kev siv hauv ntau daim ntawv thov nrog kev kub siab, ncua-xoom thiab / lossis ntsuas qhov kub. Txoj kev hloov du los ntawm flange thickness rau yeeb nkab lossis haum phab ntsa tuab cuam tshuam los ntawm lub taper tau txais txiaj ntsig zoo, nyob rau hauv cov xwm txheej ntawm rov qab khoov, tshwm sim los ntawm kab kev nthuav dav lossis lwm yam kev sib hloov zog.

Cov flanges no dhuav kom phim rau sab hauv txoj kab uas hla ntawm cov yeeb nkab mating lossis haum li ntawd yuav tsis muaj kev txwv cov khoom ntws. Qhov no tiv thaiv kev viav vias thaum sib koom ua ke thiab txo qhov yaig. Lawv tseem muab cov kev ntxhov siab zoo tshaj plaws los ntawm cov chaw sib dhos thiab tau yooj yim rau radiographed rau qhov ua tsis pom kev.

Flange hom no yuav txuas rau lub yeeb nkab lossis txau nrog rau ib qho kev nkag mus, Vweld (Buttweld).

Cov ntsiab lus ntawm Vuam Neck flange

Details of Welding Neck flange

1Cov. Weld caj dab flange2Cov. Taub Qab Weld
3Cov. Yeeb Nkab lossis Haum

Npleem Hauv flange

Lub zog suav los ntawm SlipOn flange nyob rau hauv lub zog sab hauv yog ntawm kev txiav txim ntawm ob feem peb uas ntawm Vuam Neck flanges, thiab lawv lub neej hauv qab qaug zog yog li ib feem peb ntawm cov tom kawg.

Cov khoom sib txuas nrog cov yeeb nkab yog ua nrog 2 fillet welds, zoo li nyob sab nraud kuj tseem nyob rau sab hauv ntawm flange.

Qhov ntsuas X ntawm daim duab, yog kwv yees li:
Phab ntsa tuab ntawm cov yeeb nkab + 3 hli.

Qhov chaw no yog qhov tsim nyog, kom tsis txhob ua puas lub ntsej muag flange, thaum lub sijhawm vuam.

Ib qho kev tsis zoo ntawm qhov flange yog, qhov ntsiab lus ntawd yeej ib txwm yog ua ntej yeeb nkab yuav tsum tau welded thiab tom qab ntawd tsuas yog haum. Kev sib txuam ntawm flange thiab lub luj tshib lossis flange thiab tee tsis tau, vim tias lub npe fittings tsis muaj qhov xaus ncaj, uas ua tiav swb hauv SlipOn flange.

Cov ntsiab lus ntawm Npleem Ntawm flange

Details of Slip On flange

1Cov. Npleem Hauv flange2Cov. Ua tus hlau txuas rau sab nraud
3Cov. Filled weld rau sab hauv4Cov. Yeeb

Qhov (socket) Weld flange

SocketWeld flanges tau pib tsim rau siv ntawm qhov me me-loj qhov siab cov raj xa dej. Lawv lub zog zoo li qub yog sib npaug ntawm SlipOn flanges, tab sis lawv lub zog qaug zog 50% ntau dua ob npaug-welded SlipOn flanges.

Kev sib txuas nrog cov yeeb nkab ua tiav nrog 1 fillet weld, nyob sab nraud ntawm qhov flange. Tab sis ua ntej welding, ib qho chaw yuav tsum raug tsim los ntawm flange lossis haum thiab yeeb nkab.

ASME B31.1 1998 127.3 Kev Npaj Rau Vuam (E) Qhov (socket) Weld Assembly hais tias:
Hauv kev sib koom tes ntawm kev sib koom ua ntej ua ntej vuam, lub yeeb nkab lossis lub raj yuav tsum tau muab tso rau hauv lub qhov (socket) mus rau qhov siab tshaj plaws thiab tom qab ntawd rho tawm kwv yees li 1/16" qhov rooj.

Lub hom phiaj rau kev tshem tawm qis hauv Socket Weld feem ntau yog los txo cov kev nyuaj siab ntau ntxiv ntawm lub hauv paus ntawm lub weld uas tuaj yeem tshwm sim thaum lub sijhawm solidification ntawm lub hlau tsis txuas. Daim duab pom koj ntsuas X ntsuas rau qhov sib txawv.

Qhov tsis zoo ntawm qhov flange no yog qhov sib txawv, uas yuav tsum tau ua. Los ntawm cov khoom lag luam corrosive, thiab feem ntau nyob hauv cov yeeb nkab steel hlau tshuab, qhov tawg ntawm cov yeeb nkab thiab flange tuaj yeem muab teeb meem corrosion. Hauv qee qhov txheej txheem no qhov flange tseem tsis tau tso cai. Kuv tsis yog tus kws paub txog qhov no, tab sis hauv is taws nem, koj yuav pom ntau cov ntaub ntawv hais txog cov ntaub ntawv ntawm kev xeb.

Kuj rau qhov flange suav, qhov ntsiab cai ntawd yeej ib txwm yog thawj cov yeeb nkab yuav tsum tau welded thiab tom qab ntawd tsuas yog haum.

Cov ntsiab lus ntawm Cov Socket Weld Flange

Details of Socket Weld Flange

1Cov. Qhov (socket) Weld flange2Cov. Ua tus sau weld3Cov. Yeeb
X= Qhov tsis sib txawv

Lap Joint flange

Lap Joint Flanges muaj txhua qhov sib txig ib yam li lwm cov flange uas muaj npe rau ntawm nplooj ntawv no txawm li cas los nws tsis muaj lub ntsej muag tsa, lawv tau siv los ua ke nrog" Lap Joint Stub Kawg" ;.

Cov flanges yuav luag zoo ib yam li SlipOn flange nrog kev zam ntawm cov xov hluav taws xob ntawm qhov kev sib tshuam ntawm flange lub ntsej muag thiab lub laj kab kom haum raws li flanged ntawm ntu Stub Kawg.

Lawv lub zog-tuav lub peev xwm yog tsawg, yog tias muaj, zoo dua li ntawm SlipOn flanges thiab lub neej qaug zog rau lub rooj sib txoos tsuas yog ib feem kaum uas ntawm Vuam Neck flanges.

Lawv yuav siv tau txhua qhov kev nyuab siab thiab muaj nyob rau hauv tag nrho qhov loj me. Cov flanges plam hla tus yeeb nkab, thiab tsis txuas los yog tsis txuas rau nws. Bolting siab yog xa mus rau lub gasket los ntawm lub siab ntawm lub flange tawm tsam rau sab nraub qaum ntawm cov ceg yeeb nkab (Quav Kawg).

LapJoint flanges muaj qee qhov tshwj xeeb tshwj xeeb:

  • Kev ywj pheej ua ntu ncig ntawm cov yeeb nkab tswj kev ua txoj kab tsis sib xws ntawm cov nyom tsis sib xws.

  • Tsis muaj kev sib cuag nrog cov kua dej hauv cov yeeb nkab feem ntau tso cai siv cov pheej yig carbon hlau flanges nrog xeb tiv taus yeeb.

  • Hauv cov systems uas yaig lossis corrode sai, cov flanges yuav khaws cia kom rov siv dua.

Cov ntsiab lus ntawm Lap Joint Flange

Details of Lap Joint Flange

1Cov. Lap Joint flange2Cov. Kiag Kawg
3Cov. Taub qab weld4Cov. Yeeb Nkab lossis Haum

Kiag Kawg

Lub Cuam Tshuam Xaus ib txwm yuav siv nrog LapJoint flange, raws li thaub qab flange.

Qhov kev sib txuas flange no tau thov, hauv kev qis thiab tsis siv cov kev thov tseem ceeb, thiab yog tus qauv pheej yig ntawm flanging.
Hauv cov kav hlau tsis xeb hlau, piv txwv li, cov pa roj carbon steel flange yuav siv tau, vim tias lawv tsis tuaj rau hauv cov khoom hauv cov yeeb nkab.

Qhov Cuam Kev xaus muaj nyob rau yuav luag txhua cov yeeb nkab diameters. Qhov loj me thiab qhov sib txawv ntawm qhov ntev tau txhais nyob hauv tus qauv ASME B.16.9. Lub teeb-kev hnyav-xeb tiv taus Stub Ends (fittings) yog txhais hauv MSS SP43.

Lap Joint Flange nrog Cov Xaus Kawg

Lap Joint Flange with a Stub End

Xov flange

Threaded Flanges siv rau cov xwm txheej tshwj xeeb nrog lawv cov txiaj ntsig tseem ceeb yog tias lawv tuaj yeem txuas rau hauv cov yeeb nkab tsis muaj hlau txuas. Qee lub sij hawm lub foob weld tseem siv tau ua ke nrog txoj kab txuas.

Txawm hais tias tseem muaj nyob rau hauv feem ntau qhov ntau thiab tsawg thiab ntsuas kev ntsuas, screwed fittings niaj hnub no tsuas yog siv tshwj xeeb hauv cov yeeb nkab me dua.

Txoj xov flange lossis txhuam kom haum yog tsis haum rau lub kaw lus yeeb nkab nrog daim nyias nyias phab ntsa, vim hais tias txiav xov ntawm cov yeeb nkab tsis muaj peev xwm ua tau. Yog li, cov phab ntsa tuab dua yuav tsum tau xaiv ... dab tsi thicker?

ASME B31.3 Cov Lus Qhia Txog Yeeb Yeeb hais tias:
Qhov twg cov yeeb nkab steel xov thiab siv rau qhov kev pabcuam ncu kub siab tshaj 250 psi lossis rau cov kev pabcuam dej kub siab tshaj 100 psi nrog dej kub siab dua 220 ° F, cov yeeb nkab yuav tsum nyob ruaj khov thiab muaj qhov tsawg kawg yuav tsum sib npaug raws li lub sijhawm 80 ntawm ASME B36.10.

Cov ntsiab lus ntawm Threaded flange

Details of Threaded flange

1Cov. Xov flange2Cov. Xov3Cov. Yeeb Nkab lossis Haum

Cov dig muag flange

Cov dig muag Flanges yog tsim cov khoom siv tsis muaj qhov cuam tshuam thiab siv los ua kom txhua qhov kawg ntawm cov kav dej, qhov tso tawm thiab lub siab qhib lub nkoj.

Los ntawm qhov pom ntawm lub siab thiab sab hauv nruab nrab thauj khoom, dig muag flanges, tshwj xeeb hauv qhov loj me, yog cov flange uas muaj kev cuam tshuam zoo tshaj plaws.

Txawm li cas los xij, feem ntau ntawm cov kev ntxhov siab no yog dabtsi yog khoov hom ze rau ntawm qhov chaw, thiab vim tias tsis muaj cov qauv sab hauv txoj kab uas hla, cov flanges no haum rau cov ntawv thov kub siab dua.

Cov ntsiab lus ntawm Dig muag flange

Details of Blind flange

1Cov. Cov dig muag flange2Cov. Nqaij Bolt3Cov. Gasket4Cov. Lwm qhov flange