Socket weld flanges muab kev sib txuas siab rau cov piping systems me uas qhov chaw tsawg thiab xav tau kev sib txuas welded. Lawv yog cov kev xaiv tsim nyog rau NPS 2 thiab qis dua hauv kev pab cuam siab thiab yog siv dav hauv chemical injection, instrumentation, thiab hydraulic applications.
Dab tsi yog Socket Weld Flange?
Ib tug socket weld flange muaj ib tug recessed socket counterbore uas txais cov yeeb nkab kawg. Ib tug tib fillet weld ntawm sab nraud ntawm flange ua tiav qhov kev sib txuas. Ib tug internal shoulder hauv lub socket tiv thaiv cov yeeb nkab los ntawm kev hla mus rau hauv flange, thiab ib tug me me expansion gap (kwv yees li 1/16 ntiv) ntawm qhov qis ntawm lub socket accommodate thermal expansion thaum welding thiab kev pab cuam. Qhov kev tsim no tshem tawm qhov yuav tsum tau rau ib tug internal weld, ua rau lub bore smooth thiab unobstructed.
Design thiab Dimensions
Socket weld flanges yog dimensioned raws li ASME B16.5 rau cov loj NPS 1/2 txog 2. Lub socket bore txoj kab uas hla phim cov yeeb nkab sab nraud txoj kab uas hla ntxiv rau ib tug me me clearance rau kev sib dhos. Lub counterbore qhov tob yog xam los muab qhov yuav tsum tau expansion gap ntawm qhov qis ntawm lub socket. Lub hub design zoo ib yam li ib tug weld neck flange tab sis luv dua thiab tsis muaj tapered profile. Tag nrho cov standard facing types muaj, nrog rau raised face yog ib qho feem ntau siv rau socket weld flanges.
| NPS | Pipe OD (in) | Socket Bore (in) | Socket Depth (in) | Bore Diameter (in) |
|---|---|---|---|---|
| 1/2 | 0.840 | 0.850 | 0.500 | 0.625 |
| 3/4 | 1.050 | 1.060 | 0.562 | 0.822 |
| 1 | 1.315 | 1.330 | 0.625 | 1.049 |
| 1-1/4 | 1.660 | 1.675 | 0.688 | 1.380 |
| 1-1/2 | 1.900 | 1.920 | 0.750 | 1.610 |
| 2 | 2.375 | 2.400 | 0.812 | 2.067 |
Pressure Ratings
Socket weld flanges muaj nyob rau hauv tag nrho ASME pressure classes los ntawm 150 txog 2500. Lawv pressure rating yog sib npaug rau weld neck flanges rau tib chav kawm, ua rau lawv tsim nyog rau high-pressure small-bore applications. Txawm li cas los xij, lawv lub neej fatigue qis dua weld neck flanges vim yog stress concentration ntawm fillet weld thiab qhov ua tau crevice ntawm socket qis. Lawv ua tau zoo hauv kev static thiab nruab nrab cyclic tej yam kev mob tab sis tsis pom zoo rau tej yam kev pab cuam hnyav cyclic.
Cov ntaub ntawv
Socket weld flanges muaj nyob rau hauv tib yam ntaub ntawv raws li lwm yam ASME B16.5 flanges. ASTM A105 carbon steel yog standard rau kev pab cuam dav dav. ASTM A182 F304 thiab F316 stainless steels yog siv rau tej yam kev corrosive. ASTM A350 LF2 muaj nyob rau qhov kub tsis tshua. Alloy qib nrog rau F11, F22, thiab F91 tsis tau sau tawm rau qhov kub siab. Cov ntaub ntawv yuav tsum muaj kev sib haum xeeb zoo weldability vim lub socket weld feem ntau yog ua nyob rau hauv lub teb.
Cov ntawv thov
Socket weld flanges yog qhov zoo tshaj plaws rau cov kab chemical injection uas yuav tsum tau tshuaj ntsuam xyuas qhov ntau me precise tshuaj rau hauv cov txheej txheem ntws. Lawv yog standard rau cov kev sib txuas instrument thiab gauge taps qhov chaw yog qhov tseem ceeb. High-pressure hydraulic systems feem ntau siv socket weld flanges rau lawv qhov loj compact thiab muaj peev xwm siab. Small-bore process pipework, sampling points, thiab analyzer connections yog cov ntawv thov ntau. Lawv yog txiav txim siab tshwj xeeb hauv cov ntawv thov uas qhov chaw txwv tsis pub siv weld neck flanges.
Socket Weld vs Weld Neck
Socket weld flanges yog compact tshaj weld neck flanges thiab xav tau cov yeeb nkab ntev tsawg rau kev teeb tsa. Lawv siv ib tug yooj yim fillet weld es tsis yog ib qho kev sib txuas full-penetration butt weld, txo lub sijhawm welding thiab cov kev txawj ntse yuav tsum tau. Txawm li cas los xij, cov kev tsim socket tsim ib qho ua tau crevice ntawm qhov qis ntawm lub socket uas corrosion tuaj yeem pib. Weld neck flanges muab kev tiv thaiv zoo dua rau kev pab cuam cyclic thiab yog nyiam rau cov kev siv tseem ceeb uas yuav tsum tau radiograph kev tshuaj xyuas ntawm cov weld. Socket weld flanges yog tej yam kev xaiv nyiaj txiag zoo rau cov ntawv thov small-bore uas lawv qhov kev txwv yog tsim nyog.
Kev teeb tsa
Kev teeb tsa tsim nyog yuav tsum tau ntxig cov yeeb nkab rau hauv qab ntawm lub socket, ces thim nws tawm kwv yees li 1/16 ntiv los tsim lub expansion gap. Ib tug fillet weld ces yog siv nyob ib ncig ntawm cov yeeb nkab sab nraud txoj kab uas hla ntawm lub socket ntsiab. Cov weld yuav tsum tau tso cai rau kom txias ib txwm yam tsis muaj rapid quenching los tiv thaiv cracking. Kev xyuas kom pom kev pom qhov muag ua raws li magnetic particle (MT) lossis liquid penetrant (PT) kev sim yog feem ntau tsim nyog rau kev kuaj pom cracks. Post-weld heat treatment yog feem ntau tsis tas yuav rau carbon steel socket welds vim lawv qhov loj me thiab qhov kub tsis tshua kub.
Xav tau Socket Weld Flanges?
Hu rau peb pab pawg engineering rau kev xaiv socket weld flange thiab tus nqi sib tw.
Tau txais ib daim ntawv teev nqi
Cov khoom Flange
