ASTM A672 Siab -Pressure Electric-Fusion-Welded yeeb nkab
Rau Nruab Nrab -Tsuas Kub, Siab- Kev Pabcuam Siab - Tsim nyog rau PED Requirements
Txheem & Scope
ASTM A672 npog hluav taws xob- fusion-welded (EFW) steel yeeb nkab raunruab nrab-kub, siab- kev siv siab, xws li fais fab nroj tsuag feedwater, boiler ncig, chav kab, refineries, thiab ntev - kis tau tus mob gas.
Tus qauv siv rau cov yeeb nkabNtau tshaj los yog sib npaug rau 1800mm sab nraud txoj kab uas hla, nrog phab ntsa thickness mus txog 2 nti (50 mm), tsim los ntawmLSAWlos ntawm siab- nkoj zoo phaj.
NDT & Kev Ntsuas Siab (Tus lej thib ob)
Tus lej thib ob=2: 100% vuam radiography + hydrostatic kuaj
Tus lej thib ob=3: Hydrostatic test nkaus xwb (tsis muaj radiography)
Tus lej thib ob=0 lossis 1: Kev kuaj ib nrab lossis raws li kev pom zoo
Rau kev lag luam EU,Chav Kawm 22 / 32(tag nrho radiography + hydrotest) yog pom zoo.
Cov ntsiab lus tseem ceeb ntawm EU Kev Ua Raws Cai
PED 2014/68/EU: Feem ntau poob hauv qeb 2 lossis 3 (nyob ntawm DN × siab), yuav tsum tau EN 10204 Hom 3.2 daim ntawv pov thawj thiab Kev Ceeb Toom Lub Cev koom nrog.
CE Marking: Kev ntsuas kev ua tau zoo tuaj yeem ua tiav ua ntej xa khoom.
Traceability: Txhua yeeb nkab yog traceable los ntawm tshav kub tooj, phaj tooj, thiab weld seam ID.
Xaiv cov lej ntxiv: tuaj yeem ua tau raws li NACE MR0175 / MR0103, AD 2000, EN 13480, thiab lwm yam.
Technical Data (Tswj)
| Parameter | Tus nqi / Ntau |
|---|---|
| Sab nraud txoj kab uas hla | 8 ''-72 '' (219-1800mm) |
| Phab ntsa thickness | 0.315 "-2" (8-50mm) |
| Ntev | 6 - 12 m (raws li tus neeg siv khoom xav tau) |
| Xaus tiav | Beveled / Plain / Threaded |
| Kev kho saum npoo | Bared, Dub pleev xim rau, Corrosion Resistant Txheej + Cap |
Tej kev siv
Ultra-supercritical fais fab nroj tsuag feedwater & main steam
Siab -Natural gas kis
Refinery siab - cov txheej txheem piping
Geothermal steam thauj
Industrial boiler tsev utilities
Cheeb tsam cua sov thawj tes hauj lwm
Muaj cov ntaub ntawv pov thawj
EN 10204 Hom 3.1 (Lub Hoobkas kuaj daim ntawv pov thawj)
EN 10204 Hom 3.2 (thib peb-Tsab Ntawv Ceeb Toom Lub Cev tau pom)
PQR / WPQ (cov txheej txheem vuam tsim nyog)
NDT qhia (RT / UT / MT / PT)
Cov ntaub ntawv ntsuas hydrostatic
Cov kab kos kev kho cua sov
PED Tshaj Tawm Txog Kev Ua Raws Cai (DoC)
Cim npe nrov: astm a672 siab siab yeeb nkab nyob rau hauv Suav teb, Tuam Tshoj astm a672 siab siab yeeb nkab nyob rau hauv Suav teb manufacturers, lwm tus neeg, Hoobkas
