Alap joint flangezoo li daim tiab hauv qab- ntawm flange los ntawm qhov deb, thiab ntawm daim duab nws yooj yim rau confuse ob. Qhov sib txawv tseem ceeb tshaj qhov nws zoo li: lub puab tsaig sib koom ua ke flange tsis sib khi rau cov yeeb nkab phab ntsa zoo li plam - ntawm flange. Nws zaum xoob ntawm lub welded stub kawg, thiab qhov kev xaiv tsim ib qho yog dab tsi ua rau nws txoj hauv kev los koom nrog stainless hlau piping ntawm ib feem ntawm tus nqi. Kab lus no rhuav tshem ob ntu, qhov ntev thiab luv qauv xaiv, thiab qhov twg qhov kev npaj nres yog cov lus teb raug.
Yuav Ua Li Cas Lub Lap Joint Ua Haujlwm
Kev sib koom ua ke yog ob daim ua haujlwm ua ke. Lub stub kawg yog pob tw -welded mus rau lub yeeb nkab kawg, nrog ib tug flange (phaj) tig tawm sab nraud ntawm qhov kawg. Lub puab tsaig sib koom flange yog lub nplhaib xoob uas swb hla cov yeeb nkab ua ntej qhov kawg ntawm qhov kawg yog welded, thiab rov qab tiv thaiv lub ntsej muag flange. Thaum koj tuav lub bolts, ob qhov kawg ntawm lub ntsej muag ntawm ob sab ntawm qhov sib koom ua ke nyem lub gasket nruab nrab ntawm lawv - lub flange xoob nqa lub ntsia liaj qhov rooj tab sis tsis txhob kov cov txheej txheem dej. Vim hais tias lub flange tig ywj siab ntawm cov yeeb nkab, lub qhov ntsia liaj qhov rooj tuaj yeem raug kab tawm tsam cov mating flange ua ntej cov bolts nkag mus rau hauv, uas yog tag nrho vim li cas qhov tsim muaj rau kev sib dhos ua ke.
| Ib feem | Nws yog dab tsi | Txuj | Hu rau cov kua |
| Stub kawg | Welded rau yeeb nkab kawg, tig flange ntawm lub ntsej muag | Ntev ntev: ASME B16.9 / MSS SP-43; Qauv luv: ASME B16.5 | Yog lawm |
| Lap sib koom flange | Lub nplhaib xoob uas rov qab lub pob tw kawg | ASME B16.5 | Tsis muaj |
Long Pattern vs Short Pattern Stub End
Cov neeg yuav khoom feem ntau hais txog "stub kawg" yam tsis tau hais tias tus qauv twg, thiab ob qho tib si tsis hloov pauv tau ntev - khiav kev pabcuam. Cov qauv ntev (hom L) ua raws liASME B16.9thiab MSS SP-43: nws ntev dua, nrog lub ntsej muag tig tau zoo rov qab los ntawm qhov vuam, yog li qhov kub ntawm vuam tsis cuam tshuam lub ntsej muag sealing. Cov qauv luv luv (hom S) ua raws li ASME B16.5: nws luv dua thiab pheej yig dua, tab sis cov vuam zaum ze rau ntawm lub ntsej muag. Cov qauv ntev yog lub neej ntawd rau cov kav dej tsis muaj zog uas pom rov qab sib dhos thiab disassembly; luv qauv yog kev lag luam kev xaiv rau static, tsis tseem ceeb pob qij txha.
| Feature | Ntev qauv (L) | Qauv luv (S) |
| Txuj | ASME B16.9, MSS SP-43 | ASME B16.5 |
| Ntev | Ntev dua; weld ntxiv los ntawm lub ntsej muag sealing | luv dua; ntau compact |
| Zoo tshaj rau | Rov qab dismantling, stainless piping | Static, qis -cov nqi sib koom ua ke |
| Nqi | Siab dua | qis |
Vim li cas nws thiaj li txuag nyiaj ntawm Stainless Hlau Yeeb Nkab
Qhov no yog vim li cas tus tsim muaj. Ntawm cov kab hlau tsis muaj steel, ib txwm tsa- lub ntsej muag flange yuav tsum tau ua los ntawm stainless hlau tag nrho txoj kev los ntawm - A182 F304 los yog F316 forged flange, uas yog kim. Nrog rau kev sib koom ua ke ntawm lub puab tsaig, tsuas yog qhov kawg ntawm qhov kawg kov cov kua dej, yog li cov flange xoob tuaj yeem yog cov pa roj carbon steel A105. Lub flange yeej tsis pom cov txheej txheem, yog li nws cov corrosion kuj tsis muaj teeb meem. Ntawm qhov loj -dhau stainless kab lub forged flange yog tus nqi qis dua los ntawm qhov deb, thiab pauv nws rau carbon steel yog qhov kev txuag los ntawm. Cov yeeb nkab nws tus kheej thiab cov stub kawg tseem yog stainless, yog li qhov kev ua haujlwm corrosion ntawm lub cev tsis hloov.
Thaum Nws Yog Txoj Cai Xaiv
- Stainless los yog alloy piping qhov twg tus nqi flange yuav dominate tus nqi sib koom
- Cov pob qij txha uas yuav tsum tau muab tshem tawm feem ntau - lub twj tso kua mis, valve thiab cov khoom siv flanges hauv thaj chaw tu
- Kev teeb tsa qhov twg lub qhov ntsia hlau yuav tsum tau ua raws li kev sib dhos, thiab tig lub flange xoob pab
- Cov kab loj - tho kab uas qhov forged flange txuag yog loj tshaj
Qhov twg Tsis Muaj
Txoj kev npaj muaj qhov txwv tiag tiag. Lub ntsej muag lub ntsej muag yog lub ntsej muag tig ntawm qhov kawg, uas tsis muaj zog tshaj lub ntsej muag forged flange - siab vibration, cyclic loading lossis hnyav dabtsi yog khoov load yuav distort nws. Nws tsis yog thawj qhov kev xaiv rau siab - siab, siab - qhov kub thiab txias qhov kev pab cuam qhov twg lub caj dab weld flange tau teev rau vim li cas. Nws kuj xav tau ib lub gasket xaiv kom zoo ntawm lub ntsej muag ceg; lub geometry ntawm lub ntsej muag tig tsis lees txais txhua hom gasket. Thiab ntawm cov kab me me cov nqi txuag ploj, vim tias flange tsis yog cov khoom kim dua.
Installation thiab Ordering Notes
- Txiav cov stub kawg thiab flange ua ke - lub bore thiab lap dimension yuav tsum sib phim, thiab txoj kab uas hla yuav tsum phim lub flange vojvoog.
- Qhia cov qauv ntev lossis luv luv qhia meej ntawm qhov kev nug; tsis txhob xav tias zeb yuav xaiv.
- Khoom siv: stub kawg A403 WP304 / WP316 rau cov kab stainless; xoob flange A105 tshwj tsis yog lub flange nws tus kheej yuav tsum tau tiv thaiv sab nraud corrosion.
- Tom qab welding lub stub kawg, hnav lub ntsej muag tig ua ntej sib dhos - tshav kub tint los yog weld spatter rau ntawm ceg tawv ruins lub foob.
- Paub meej tias chav kawm siab (ASME B16.5 Chav Kawm 150 txog 2500) ntawm ob lub stub kawg thiab flange, thiab phim cov mating flange.
