Forged socket-weld fittings (ASME B16.11), Class 3000 and 6000: elbows, tees, couplings — socket bore, depth, centre-to-bottom

sizes

15 in table

Notes

• B16.11 socket-weld fittings take plain pipe in a socket: B is the socket bore (inside diameter of the socket), J the socket depth, D the bore of the fitting, C the socket wall, G the body wall and A the distance from the centre of the fitting to the bottom of the socket (centre-to-end = A + J). B, D and C are printed as two values, the first / second as headed in the table here (max / min as Wermac prints them). Wermac prints the letters in a different order on its coupling page; the tables here follow the elbow and tee pages, and the values are identical in all three.
• Cross-check: for every elbow, tee and coupling size A + J (converted to inches) lands within 0.04 in of the maker's overall centre-to-end A as Smith-Cooper prints it (the catalog text does not define its letters). Its elbow column B (read as the body width) compares with the drawn B(min) + 2 × C(min) as -0.8 to -0.2 mm for Class 3000 and -3.0 to -1.7 mm for Class 6000 (drawn minus printed). The coupling gap E (Wermac's laying-length column 'E', 9.5 / 13 / 19 mm) is the distance between the two socket bottoms: 2J + E is within 1 mm of Smith-Cooper's coupling length for all nine sizes (NPS 1/2: 29.5 mm vs 1.14 in = 29.0; NPS 4: 57 mm vs 2.25 in = 57.2). The 'check' columns below show the inch comparisons.
• Dropped as a misprint: Wermac prints D min = 46.4 for Class 3000 NPS 3 (next to D max 79.5); every other row has D min about 1.5–3 mm under D max, so the value is not used and no NPS 3 file is drawn. Tolerance of A as printed: ±1.5 mm (NPS 1/2 and 3/4), ±2 mm (NPS 1 to 2), ±2.5 mm (NPS 2-1/2 to 4).
• Files (Xem-drawn envelopes): a sphere and cylinders of outside diameter B(min) + 2 × C(min) meeting at the fitting centre, out to A + J on each arm; socket bore B(min) for the last J; bore D(min) from the socket bottom to the centre. The second printed value of B, C and D is used (the guaranteed minimum body; NPS 1/2 Class 3000: Ø29.9 drawn, the maker prints 1.20 in = 30.5 mm; the Class 6000 body is drawn smaller than the maker's by the range in the cross-check above). The true outside contour of a forged elbow or tee is not published as numbers, so the body is a cylinder-and-sphere envelope; the socket, the depth, the bore and the centre-to-bottom are the published values. Couplings: tube of that OD, length 2J + E.
• Half couplings, caps and reducing inserts are not tabulated here: the sources read give no defined centre dimension for them (Smith-Cooper A / B for socket-weld caps are printed without definitions).
• Socket bore vs pipe OD: Schedule 40 pipe OD is 21.34 / 26.67 / 33.40 / 42.16 / 48.26 / 60.33 mm at NPS 1/2 to 2, against socket bores of 21.70–21.95 / 27.05–27.30 / 33.80–34.05 / 42.55–42.80 / 48.65–48.90 / 61.10–61.35, i.e. 0.36–1.0 mm of clearance.

Forged socket-weld fittings (ASME B16.11), Class 3000 and 6000… size chart

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.

Where the files are

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

Free files

★ Free files 14 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

Plain text: sheet.txt · JSON: /api/geometry?object=forged-socket-weld-fittings-b16-11

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