Butt Weld Fittings te pawh a awm bawk
Thil hman tur: Carbon Steel, Alloy Steel, Stainless Steel, Duplex / Super Duplex te a ni
Size Range: 1⁄2′′ – 48′′ inkar a ni.
Bang thuk zawng: SCH 5 – SCH XXS
A chi hrang hrang: Elbows (45℃, 90℃, 180℃), Tees, Reducers, Caps, Cross, Stub Ends te a awm a
A tawp: Beveled ends (standard), Plain tawp a awm
Heat Treatment: Normalized, Annealed, Quenched & Tempered, Solution Annealed hmanga tihfai theih a ni
Testing & QA: Dimensional check, NDT (UT, MT, PT, RT), Hydrostatic hmanga enfiah a ni
A hman dan: Oil & Gas, Chemical, Power, Tui tihthianghlim, Industrial Piping
Butt weld fittings te pawh a awm bawkprocess leh transmission line-a full-penetration welded joint siamna atana hman thin weld-end components (elbows, tees, reducers, caps, stub ends) te an ni. A key procurement hlutna chubutt weld fittings te pawh a awm bawkis dimensional repeatability-center-to-end, bevel geometry, leh schedule alignment-chuvangin field welding, NDT, leh commissioning te hian fit-up rework awm lovin ITP hi an zui thei a ni. Octal Pipe hian ASME/ASTM/EN compliant fittings documented heat treatment, NDT options, leh project release atan traceable MTC te a supply a ni
Octal Pipe a nia siam chhuak thinbutt weld pipe fittings te pawh a awm bawkoil & gas, petrochemical, power, leh tui project hrang hrang atan. DN15–DN1200 in kan siam chhuak thincarbon steel (ASTM A234 WPB/WPC, P235GH), alloy steel (ASTM A234 WP11/WP22, P91/P92), leh stainless steel (ASTM A403 WP304/304L/316/316L) te a awm bawk., thla khatah ton 10,000 a phur thei a ni.
Production & Quality Control hmanga thil siam chhuah: 1.1.
- Formed leh heat-treated a chakna leh a chhe thei lo tur a awm reng theih nan
- Caliper, micrometer, leh gauge hmanga dimensional check a, a fit tha em tih te
- UT (ultrasonic) hmanga weld quality enfiahna, withWeld 100% chuan defect-free an verified
- Chemical composition leh mechanical property finfiah nan spectrometer leh mechanical testing machine hmanga material testing neih a ni
Technical support-ah hian:
- High-pressure emaw corrosive environment atana material leh schedule dik thlan
- Flow mumal tak leh service life rei tak neih theih nan welding leh installation kalphung chungchanga thurawn pek
Kan fittings te hi Middle East, Africa, leh America ram hrang hranga EPC project hrang hrangah hman a ni tawh a, ASME, ASTM, leh ISO standard te a zawm a, project schedule angin kan pe chhuak bawk.

Standard leh Material Grade hrang hrangte
| Thil | A hman dan pangngai (Octal Pipe) . |
|---|---|
| Standard hrang hrang | ASME B16.9, ASTM A234/A403, EN 10253 (a remchan dan angin MSS SP-43 bakah) (Octal Pipe Co., Ltd.) |
| Thil hman tur | Carbon / alloy / stainless hmanga siam a ni a; duplex dil theih a ni ang (Octal Pipe Co., Ltd.) |
| Size hrang hrang a awm | 1/2"–48" (DN15–DN1200) (Octal Pipe Co., Ltd.) a ni a, a man pawh a tlawm hle. |
| Wall (schedule) a ni. | SCH 5 atanga XXS (Octal Pipe Co., Ltd.) thleng a ni. |
| Type hrang hrang | 45/90/180 elbows, tees, reducer, cap, cross, stub tawp (Octal Pipe Co., Ltd.) te a awm a, a man pawh a tlawm hle. |
| A tawp ta | Beveled tawp chu standard a ni a; plain ends a awm thei (Octal Pipe Co., Ltd.) . |
| QA duhthlan tur a awm | Dimensional check + ITP khatah UT/MT/PT/RT; hydro/pneumatic hmanga dil theih (Octal Pipe Co., Ltd.) |
A lian zawng: 1⁄2′′ – 48′′
Wall thuk zawng: SCH 5 atanga SCH XXS thleng
A tawp: Beveled (standard), A tawp pangngai (special) .
Integrated system-a flange, valve, leh pipe te nena inmil
Butt Weld Fittings chi hrang hrang
| Fitting type a ni | Common variants (eng nge koh chhuah tur) . | On site-a a hman dan (workfront context) . | Rework loh nan key spec detail a awm |
|---|---|---|---|
| Elbows a ni | 45℃/ 90℃/ 180℃a ni; LR (1.5D) a ni.vsSR (1.0D) a ni. | Rack, sleeper, skids te chu a vel a ni. process leh utility line-a slope/drain awm reng tur | NemnghetLR leh SR te an inkhel, NPS/SCH (a nih loh leh OD×WT) 1.1., leh bevel per standard so fit-up hian grinding a ngai lo |
| Tees a ni | Equal tee / Reducing tee | Header te chu instrument/equipment tie-ins ah branch off rawh; spool branch siam chhuah a ni | Branch size chiang takin tarlang rawh; nemnghetbranch neih hun tur ruahman a nileh tolerances te avangin branch mismatch hian root gap a hawng lo |
| Reducer te hi a ni | Concentric a ni / Eccentric (flat-on-chunglam / flat-chutih-hnuailam) | Vertical line-te tan chuan concentric; pump suction leh drainable run atan eccentric a ni | Nihphungzirtir(FOT/FOB) + transition schedule hmangin air pocket emaw slope hloh emaw a awm loh nan |
| Caps te chu | Standard cap a ni a; wall rit tak / pressure cap | Hydrotest blinds, dead-ends, future tie-ins te tan pipe tawp kha khar rawh | Match cap topipe schedule siam a ni; confirm end prep chutiang chuan cap chu thin-to-thick weld problem a lo ni lo |
| Kraws a ni | Equal cross / reducing cross (a tam lo zawk) . | Compact manifold leh instrument te hian space a tight chuan an take-off thin | Confirm feasibility: cross hi dimensional tolerance-ah sensitive a ni-spec-in cross a mamawh loh chuan tee pahnih hman a tha zawk fo |
| Stub Ends / Lap Joints te chu a awm a | Pattern tawi / sei takstub tawp lam; lap-joint flange hmanga hman thin | Maintenance spool neih fo te, lined pipe connection te, corrosion allowance strategy te | Call out rawhkaihruaitu, hmai sei zawng, leh mating flange standard a nih avangin bolt-up leh gasket seating te hi sawi lawk theih a ni |

Butt Weld Fittings siam dan (Factory Sequence) hmanga siam chhuah dan (Factory Sequence) .
- Forming (forging / hot pressing) hmanga siam: 1.1.fitting blank chu elbow/tee/reducer ang maia siam a ni. He step hian wall uniformity leh basic geometry a tichiang nasa hle a, chuvang chuan fit-up on chu direct-in a nghawng a nibutt weld pipe fittings te pawh a awm bawk.
- Cutting & shaping siam dan: 1.1.blank siam chu trim a ni a, target dimension (eg, center-to-end leh overall length)-ah profile a ni. Consistent shaping hian spool fabrication chu repeatable-a bik takin skid work-ah repeated joint tam takah a vawng reng a ni.
- Beveling & end buatsaih dan tur:weld tawp te chu bevel profile leh end squareness mamawh angin machine hmangin an siam thin. Stable end prep hian welder te chu root condition mumal tak nei turin a pui a; a sensitive zual sauh sauh a nibutt weld tube fittings te pawh a awm bawkOD×WT hmanga order an ni a, tight fit-up beisei a ni.
- Heat treatment (material grade hmanga tihfai): 1.1.normalizing/annealing/solution annealing hi material leh standard-in a mamawh angin hman a ni. Tanstainless steel butt weld pipe fittings te pawh a awm bawk, heat treatment dik tak hi weldability leh property compliance atana release basis-a tel a ni.
- Surface finishing + a tawp ber tihchhuah:stainless fittings hi a tlangpuiin pickled/cleaned a ni a, chutah chuan lot chu enfiah a ni a, mark a ni a, traceable documentation (MTC/lot mapping) hmangin tihchhuah a ni a, chuvangin shipment chu controlled anga pawm theih a nibutt weld fittings te pawh a awm bawk, mixed loose pieces a ni lo.
Inspection & Quality Assurance neih a ni bawk
Octal Pipe hian raw material atanga fitting zawh tawh thlengin multi-stage quality control program kimchang tak a kalpui a:
| QC item a ni | Eng nge kan check thin | Typical control / acceptance number lei duhtute hman thin | Release pack-a i dawn tur chu |
|---|---|---|---|
| Chemistry finfiahna (PMI/OES) 1.1. | Mix-ups (esp. 304L/316L) awm lohna turin grade confirmation a ni. | 100% lumna-level a nifinfiahna; mixed-grade order atan chuan lei duhtu tam takin an mamawh a ni100% piece PMI a ni | PMI/OES report + heat/lot mapping tih a ni |
| Mechanical hmanga test a ni | Tensile / yield / elongation (heat/lot khatah) 1.1. | Heat khatah set 1 a ni(or per lot) chu baseline angin; critical duty atan ITP khatah extra test neih a ni | MTC + lab test report a ni |
| Billet/taksa UT (laminations) te chu 1.1. | Internal soundness a siam hma/a siam hnuah | As often specified as100% UT scan theih a nicritical fittings emaw, wall rit tak tak emaw atan | UT report chu scope + pawm result nen a ni |
| Dimensional control a ni | OD/ID, WT, ovality, center- atanga- tawp thleng | Dawr control dan tlangpui:ovaality OD 1.0% aia tlem emaw, a tlukpui emaw a ni; WT nominal hnuai lam lo > 12.5%(rule tlem ber hman tlanglawn); center-to-end chu B16.9/EN 10253 angin check a ni | Dimensional inspection sheet (lot-a innghat) a ni. |
| Bevel & tawp lam buatsaih a ni | Bevel angle / zung hmai / squareness a awm | Bevel basis hman tlanglawn (ASME B16.25 style):37.5℃± 2.5℃a ni; root face a ni tlangpui~1.6 mm (1/16") a ni.(project chu a khauh thei); end squareness chu control fo thin a ni1.0 mm aia tlem emaw, a tlukpui emaw a ni | End-prep inspection record + thlalak dilna angin |
| Heat treatment control | Normalizing / annealing / solution annealing (a hman dan tur angin) . | Furnace traceability leh controlled cycle hmanga zawn theihna; neitu tam takin an dil thinbatch khatah temperature chart siam a nileh a tulna hmunah hardness check te a awm bawk | Heat-treatment chart / record + hardness report (a tarlan a nih chuan) . |
| Surface enfiah a ni | Folds, lap, crack, inclusions te pawh a awm bawk | 100% hmuh theih a ni; for stainless "clean surface" beisei chu PO-ah ziah a ni fo (embedded scale awm lo, sharp edges/burrs awm lo) | Mit hmuh theiha enfiahna checklist |
| NDT (material pakhat & ITP) a ni. | A tul angin MT/PT/UT/RT | ITP pattern tlangpui: 1.1.MT/PT 100% a ni.hmun pawimawh tak takah;RT 10–100% vel a ni.welded fittings supply a nih hunah / ITP-in a koh hunah chauh | NDT report te chu coverage scope + result nen a ni |
| Pressure / leak testing (a tul hunah) . | Hydro / boruak hmanga siam a ni | A tarlan chuan: hydro commonly1.5 × design pressure a ni; hold time fo thin30–120 s aia tam emaw, a tlukpui emaw(ITP-a sawifiah) | Test report (pressure/hold/hun/lot) tih a ni. |
Technical lama hlawkna a awm
- Stable high-volume chhuahna:Octal Pipe hian kum-round tam tak forming line a kalpui a, hei hian bulk EPC package-elbows, tees, reducers, leh caps-te tan supply a nghet reng a, site-a schedule pressure siam lovin.
- Fit-up quality tih nawn leh theih:Process control hian welder-te’n field-a an hriat tak tak dimension-te chu a ngaih pawimawh ber a ni-.wall thickness uniformity, ovality control, leh bevel geometry inmil tak a awm bawk-chuvangin butt weld pipe fittings te chu pipe tawp nen a inmil fai a, welding laiin grinding/rework a ti tlem bawk.
- Inline end-prep consistency (controlled output angin bevel):Beveling hi "last-minute" step anga ngaih ai chuan Octal Pipe hian angle/land check nei dedicated end-facing/beveling station a hmang a, bevel profile chu lot hrang hrangah a inmil reng a-chuvangin RT/UT-driven weld acceptance chhungin root conditions chu a stable reng a ni.
- Line level-a + heat-treatment discipline siam:Elbows/tees/reducers hi controlled forming route leh matched heat-treatment cycles (normalizing/annealing/solution annealing by grade) hmanga siam a ni a, station tin kaltlangin batch traceability enkawl a ni-chuvangin mechanical property leh weldability chu repeatable a ni a, operator habit-ah a innghat lo.
- Order tihsual awm lohna tur engineering support:Shipment hmain Octal Pipe hian isometrics/MTOs te chu a enfiah thei a, LR/SR, concentric vs eccentric orientation, schedule transitions, leh end-prep requirements-"wrong fitting type" delays, a tlangpuiin fit-up-ah chauh a lo lang thin te chu pumpelh turin isometrics/MTOs te chu a enfiah thei a ni.
- Export-rei taka venhimna:Standardized marking, end protection, leh bundle/crate packing te hian bevel leh sealing face te chu handling laiin a humhim a, chuvangin fittings te chu touch-up work ai chuan inspection leh welding dawng turin inpeih takin an thleng thin.

Butt Weld Fittings "Fit-Up Risk Map" (Pipe leh Tube leh Stainless te) te hi a hlawhtling hle.
Butt weld fittings (baseline pipe package hrang hrang) te chu a hnuaia mi ang hian a ni.
- Chhungbutt weld pipe fittings te pawh a awm bawk, control point ber chuschedule alignment a ni-fitting chu pipe OD/WT family nen a inmil tur a ni a, chuvangin welder chuan root land grinding emaw gap hawn emaw hmangin "make it fit" turin a nawr lo vang. Octal Pipe package-ah chuan kan confirm tlangpuiNPS + schedule (or OD×WT) tih a ni.leh fitting standard (eg, B16.9) chu lock la, chutiang chuan center-to-end leh bevel geometry chu spool run pumpuiah a inmil reng ang.
Butt weld tube fittings (tube OD inmil lohna hlauhawmna):
- Butt weld tube fittings te pawh a awm bawk"size wording" hian OD system hrang hrang a thup theih avangin project-te hun an hlohna hmun an ni. Tube-based BOM te hian an quote fo thinOD×WT direct a ni, pipe-based BOMs te chuan an hmang thungNPS/SCH-leh inmil lohna tlemte chu fit{1}}up problem lian tak a lo ni ta a, joint tam tak chu orbital-welded emaw skids-a prefabricated emaw a nih chuan. Practical fix chu a awlsam hle: tube fittings te chu hetiang hian treat rawhOD-controlled components te chu a nileh PO-ah hian mating tube OD standard (leh OD×WT dik tak) chu a tarlang a, nominal size chauh ni lovin.
Stainless steel butt weld pipe fittings (release risk hi grade chauh a ni lo):
- Tanstainless steel butt weld pipe fittings te pawh a awm bawk, a hlawhchham tlangpui chu "dik lo 316L" a ni lo-chu chu release leh fabrication mak tihna a ni: dahkhawl laiin a surface condition a stain a, heat-affected issues that complicated welding, leh mixed-lot traceability that slows receiving inspection. Octal Pipe hian PO chu a align-in stainless fitting release audit-friendly takin a vawng reng a nigrade chiang zawk (304L/316L) .plusfinish/cleaning beisei a ni, leh shipping nenlot mapping (marking → MTC) siam a ni.chuvangin fittings chu dawr floor-ah re-sorting ngai lovin heat leh size hmangin stage theih a ni.
Applications / Workfront Scenarios (Butt Weld Fittings hmanna tak tak awmna hmun) .
- Live rack line-a tihtawp tie-ins (brownfield revamps):
Crew te hian an cut lut tlangpui90℃LR elbows + tees tihtlem theihnasupports vel reroute tur, instrument take-offs add tur, emaw outage window tawi tak chhunga header awm tawhah skid thar tie tur. Challenge "dik tak" chu fit-up speed-ifcenter-to{1}}tawp thlenginemaw bevel a inmil lo a, welder te chuan land/root gap an grind tawp a, joint chu RT/UT pass harsa zawk a ni. Octal Pipe package-ah chuan fittings hi kan stage tlangpui aISO line list a ni(size/schedule/material), chuvangin welding team chuan spool khatah elbow/tee set dik tak chu wall mix lovin an thlang thei a ni.
- Modular skids (repetitive weld, tight tolerances) atan pipe spool siam hmasak a ni:
Skid dawr hian joint repeated za tam tak an kalpui-.concentric reducer, cap, tees, leh short-radius elbow te a awm bawk-schedule dik lo pakhat chu batch pum puia rework-a cascade theihna hmun. A taka hman chuan risk chu "thin-to-thick" transition a ni a, chu chuan parameter chu mid-run leh slow production a thlak danglam tir a ni. Octal Pipe hian PO toNPS/SCH (a nih loh leh OD×WT) 1.1.leh fittings clear marking leh lot-mapped release pack hmanga delivery te, chuvangin spool te chu weld hmasa ber atanga final hydrotest thlengin a inmil reng a ni.
- Pump suction / drainable process kalpui dan (orientation-sensitive fittings):
Pump station leh process unit-ah te, .eccentric tih tlemtu (eccentric reducers) teair pocket awm lohna tur leh stable suction neih theihna turin a bik takin an hmang thin-a tlangpuiinflat-on-top (FOT) ah chuan a awm a.horizontal suction line-ah te, leh oriented reducer/tees hmangin drain slope-ah te dah a ni. Workfront pain chu "the reducer exists" a ni lo va, reducer chu orientation defined lovin a lo thleng a, chuvangin field team chuan an flip dik lo a, a hnuah vibration/cavitation emaw drainage issues te chu an lo chase leh thin. Octal Pipe hian quoting laiin reducer orientation requirement (FOT/FOB) chu a nemnghet fo thin a, chu chu chu pumpelh theih site siamthatna tur ven nan a ni.
- Temperature sang -temperature utility header (steam, heat-transfer, heater connection te):
Heng package te hian reducer, tees, leh elbows te an rinchhan nasa hle a, chu chu alloy pipe schedule leh heat-treatment state nena inmil tur a ni. Inspection focus hi a tlangpuiinmaterial traceability + heat-treatment evidence + NDT scope hmanga enkawl theihna a nia chhan chu neitute chuan kum tam tak chhung thermally cycle thei header-a undocumented fittings install an duh loh vang. Octal Pipe hian alloy fitting lots a thawn tlangpui a, release evidence chu marking-ah mapped a ni a, chuvangin owner inspection chuan hold point awm lovin batch chu a clear thei a ni.
FAQ

Q: Butt weld fittings vs butt weld pipe fittings vs butt weld tube fittings - eng nge a danglamna?
Q: Butt weld pipe fittings hi eng bevel nge a keng tel tlangpui (leh fit-up hmain eng nge enfiah tur)?
Q: B16.9 fitting hi pipe schedule (wall-thickness control) nen hian engtiang chiahin nge a thin theih ang?
Q: Stainless steel butt weld pipe fittings tan chuan -grade release dik lo (304L vs 316L) awm lo turin eng nge tarlan tur?
Certification pek chhuah a ni

CE Certificate neih a ni

ISO 9001 Certificate a ni

API Q1 Certificate a ni

ABS Certificate a awm bawk

AP-5L Certificate pek a ni

API-5CT Certificate pek a ni
Standard hrang hrang: 1.1.ASME B16.9, ASTM A234, ASTM A403 te a ni
Thil hman tur:Carbon, Alloy, Stainless, Duplex Steel hmanga siam a ni
Size hrang hrang: 1.1. ½″ – 48″
Wall Schedule hrang hrang:SCH 5 – XXS tih te hi a ni
A chi hrang hrang:Elbow, Tee, Reducer, Cap, Kraws, Stub End te a awm bawk
Connection hrang hrangte: 1.1.Butt weld (standard), Socket/Threaded (a lian lo zawk) te pawh a awm bawk.
hot tags .: butt pipe fittings, China Butt Weld Fittings siamtu, supplier, factory
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