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Butt-weld equal tees (ASME B16.9), NPS ½ to 12

What is the centre-to-end of a butt-weld straight tee (ASME B16.9)? · Standard part · basis: ASME B16.9 dimensions as published in SHIELD's manufacturer table (mm); OD and Sch 40 wall per ASME B36.10 (Weldbend)

Also called: butt weld tee dimensions, straight tee center to end, b16.9 tee, equal tee dimensions, weld tee step, schedule 40 tee

Exact dimensions. True size, with no printing tolerance added.

sizes
15 in table

Notes

  • An equal (straight) tee has the run and the branch the same size. C is centre to the run ends, M centre to the outlet end; for equal tees they are the same.
  • Files at NPS 1, 2 and 4, Schedule 40 hollow. The crotch blend radius is not published, so the run and branch meet sharp.
  • OD and Schedule 40 wall: Weldbend prints OD rounded (1.32, 2.38 in); the files use the exact ASME B36.10 OD (1.315, 2.375, 4.500 in) with the Weldbend Sch 40 wall (.133, .154, .237 in). Fittings are made to match the pipe's OD and wall.
  • Ends are drawn square. Real fittings are bevelled for welding to ASME B16.25; no public, citable statement of the bevel was found, so it is not drawn.

Butt-weld equal tees (ASME B16.9), NPS ½ to 12 size chart

NPSOD, mmSch 40 wallcentre-to-end run C, mmcentre-to-end outlet M, mmrun end-to-end 2C, mm
1/221.30.109 in (2.77 mm)252550
3/426.70.113 in (2.87 mm)292958
133.40.133 in (3.38 mm)383876
1-1/442.20.140 in (3.56 mm)484896
1-1/248.30.145 in (3.68 mm)5757114
260.30.154 in (3.91 mm)6464128
2-1/273.00.203 in (5.16 mm)7676152
388.90.216 in (5.49 mm)8686172
3-1/2101.60.226 in (5.74 mm)9595190
4114.30.237 in (6.02 mm)105105210
5141.30.258 in (6.55 mm)124124248
6168.30.280 in (7.11 mm)143143286
8219.10.322 in (8.18 mm)178178356
10273.00.365 in (9.27 mm)216216432
12323.80.406 in (10.31 mm)254254508

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

SHIELD (manufacturer)Butt-welded fittings & flanges, SG-BWFF: ASME B16.9 elbows, tees, reducers (mm)webPublisher's page; dimensions are facts
Weldbend CorporationWeld fitting & weld flange catalog, 63rd edition: 90° and 45° long-radius elbows, OD, STD / Sch 40 wallwebPublisher's page; dimensions are facts

Free files

★ Free files 3 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

bw-tee-equal-nps1-sch40NPS 1 equal tee, Sch 40: OD 33.40, ID 26.64, centre-to-end run and outlet 38 mm; sharp crotch, square endsSTEP · STL
bw-tee-equal-nps2-sch40NPS 2 equal tee, Sch 40: OD 60.32, ID 52.50, centre-to-end run and outlet 64 mm; sharp crotch, square endsSTEP · STL
bw-tee-equal-nps4-sch40NPS 4 equal tee, Sch 40: OD 114.30, ID 102.26, centre-to-end run and outlet 105 mm; sharp crotch, square endsSTEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=butt-weld-equal-tees

Butt-weld equal tees (ASME B16.9), NPS ½ to 12, isometric render of a generated part
Render of bw-tee-equal-nps2-sch40 from the free STEP; not to scale.

Fits with

Questions

What is the centre-to-end of a 2 in butt-weld tee?

64 mm (run and outlet), so 128 mm end to end along the run.

What is the centre-to-end of a 4 in butt-weld tee?

105 mm (run and outlet).