✅ 1. Txiav txim siab lub flange loj
Flange loj yog feem ntau txhais los ntawm:
Nominal yeeb nkab loj (nps)lossisInch Nominal (DN): Qhia cov yeeb nkab \/ flange txoj kab uas hla.
Bolt Qhov Ntev: Tus naj npawb, kab uas hla, thiab cov suab lub voj voog uas hla (PCD).
Thickness thiab sab nraud uas hla: Yuav tsum phim nrog cov yeeb nkab thiab gasket siv.
🔍 Tswv yim:Xa mus rau Asme B16.5 lossis en 1092-1 cov rooj zaum kom phim yeeb nkab thiab flange loj.
🔧 2. Xaiv cov kev ntsuas siab siab siab siab
Xaiv txoj kev ntaus nqi uas haum tussiab thiab kubCov xwm txheej ntawm koj lub system:
| Lub hom phiaj | Cov Chav Kawm Siab |
|---|---|
| ASME B16.5 | Chav kawm 150, 300, 600, 900, 2500 (psi) |
| En 1092-1 | Pn10, PN16, PN25, PN40 ... (BAR) |
| Jis b2220 | 5K, 10k, 16k, 20k (kg \/ cmo) |
🧪 Ntau dua cov kev ntsuas siab dua=thicker flanges, ntau bolts, zoo dua sealing.
🧪 3. Xaiv txoj cai cov khoom siv hlau stainless hlau
Cov ntaub ntawv xaiv cuam tshuam rau corrosion kuj, kub siab ntev, thiab lub zog kho tshuab.
| Teem nqi | Cov Khoom Siv Tseem Ceeb | Cov Ntawv Thov |
|---|---|---|
| 304 / 304L | General corrosion tsis kam, nqi-tsim nyog | Dej, Huab Cua, Kev Lag Luam Khoom Noj |
| 316 / 316L | Superior pitting Kuj (Chlorides) | Tubrog nkoj, tshuaj lom neeg, chaw muag tshuaj |
| 321 / 347 | High Temp Ruaj Ruaj (nrog TI lossis NB stabilization) | Kev tawm, hloov cua sov |
| 904L | Tiv taus cov kua qaub muaj zog (sulfuric, phosphoric) | Acid ua, ntug dej |
| Duplex \/ 2205 | Lub Zog Muaj Zog - Chloride Kev Ruaj Ntseg | Desalination, Roj & Roj |
| 254 SMO | Tsis tshua muaj neeg mob siab & pitting resistance | Dej hiav txwv, tshuaj dawb kab |
🔗 4. Xaiv cov hom flange raws li daim ntawv thov
| Flange Hom | Zoo tshaj plaws rau |
|---|---|
| Weld caj dab | Kev kub siab \/ qhov kub thiab cov pob qij txha tseem ceeb |
| Npleem-rau | Yooj yim installation, tsis tshua muaj siab |
| Dig muag | Yeeb Nkab Kawg Sealing |
| Qhov chaw weld | Kev Sib Tw Me Me, Siab Siab |
| Thoo | Tsis-welded cov ntawv thov tsawg-siab |
| Ntxhuav Quav | Cov tshuab yuav tsum nquag nquag disassembly |
| Ntev weld caj dab | Lub Nkoj Nozzles thiab cov xov tooj cua siab siab |
📏 5. Paub meej tias tus qauv ua tiav
Nco ntsoov tias cov flange ua raws cov qauv muaj feem xyuam:
ASME B16.5, ASME B16.47
En 1092-1, DIN 2633
Jis b2220
Gost 12820, AWWA C207, API 6A
📎 Nco ntsoov phim yeeb nkab, Flange, gasket, thiab bolts nyob rau hauv tib tus qauv.
🏁 Cov Ntawv Teev Xov Xwm:
Paub kojyeeb nkab lojthiabChav Kawm Siab
✅ Xaiv akhoomHaum rau koj cov kua thiab ib puag ncig
✅ Xaiv aFlange Homraws cov qauv tsim
✅ Txheeb xyuaslub hom phiajUa raws li kev sib txuas lus
Paub meejgasketthiabBolt Compatibility
