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Sanitary clamp caps, ferrules, spools and gaskets, ½ to 4 in (tri-clamp style, BPE)
What are the flange and tube dimensions of each tri-clamp size? · Standard part · basis: ASME BPE / 3-A clamp-fitting dimensions published identically by two manufacturers; ISO 2852 face profile; drawn by Xem Studio from those numbers
Exact dimensions. Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part. Mating features
- sizes
- 8 in table
Notes
- One size table for every sanitary clamp size from ½ to 4 in: tube OD and wall, bore, flange OD, gasket groove, and cap thickness. Caps (16AMP) are per flange size: one cap closes both ½ and ¾ in (25.0 mm), and one closes both 1 and 1½ in (50.5 mm).
- Ferrules come 0.5 in (short) and 1.125 in (medium) long; spools 3, 6 and 12 in face to face.
- Faces: ISO 2852 profile (2.85 mm rim, 1.6 mm gasket recess, 20° back cone) on the BPE flange diameters ½–¾ in 25.0, 1–1½ in 50.5, 2 in 64.0, 2½ in 77.5, 3 in 91.0, 4 in 119.0 mm; tube OD 12.7 / 19.05 / 25.4 / 38.1 / 50.8 / 63.5 / 76.2 / 101.6 mm, wall 1.65 mm (4 in: 2.11). The gasket-groove diameter on ½, ¾ and 4 in is derived (flange − 7.0 / 7.5 mm, the land width of every size ISO 2852 lists); the rest is from the standard.
Sizes
| size_in | tube_od_mm | wall_mm | bore_mm | flange_od_mm | groove_mm | groove_source | cap_mm |
|---|---|---|---|---|---|---|---|
| ½ | 12.7 | 1.65 | 9.4 | 25.0 | 18.0 | derived | 4.78 |
| ¾ | 19.05 | 1.65 | 15.75 | 25.0 | 18.0 | derived | 4.78 |
| 1 | 25.4 | 1.65 | 22.1 | 50.5 | 43.5 | ISO 2852 | 6.35 |
| 1½ | 38.1 | 1.65 | 34.8 | 50.5 | 43.5 | ISO 2852 | 6.35 |
| 2 | 50.8 | 1.65 | 47.5 | 64.0 | 56.5 | ISO 2852 | 6.35 |
| 2½ | 63.5 | 1.65 | 60.2 | 77.5 | 70.5 | ISO 2852 | 6.35 |
| 3 | 76.2 | 1.65 | 72.9 | 91.0 | 83.5 | ISO 2852 | 6.35 |
| 4 | 101.6 | 2.11 | 97.38 | 119.0 | 111.5 | derived | 7.92 |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance; leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| clamp faces | ISO 2852 / BPE flange | clamp + Type B gasket | clamp | all |
| gasket bead in the face recess | groove Ø per size | two ferrule faces | designed | gasket-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| ASME | BPE Bioprocessing Equipment (clamp fitting dimensions, tube OD and wall) | standard | ASME; dimensions are facts verify |
| ISO (via iTeh sample) | ISO 2852 clamp liners: face profile and flange / groove diameters | standard excerpt; dimensions are facts | |
| Dixon Sanitary | Clamp elbows, ferrules: dimension sheet | publisher's catalogue; dimensions cited, nothing copied | |
| Steel & O'Brien | Sanitary products catalog 2024 (clamp fittings dimension tables) | publisher's catalogue; dimensions cited, nothing copied |
Free files
★ Free files 54 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| cap-0.5–0.75in | solid end cap (16AMP) for 0.5–0.75 in: Ø25 × 4.78 mm | STEP · STL |
| cap-1–1.5in | solid end cap (16AMP) for 1–1.5 in: Ø50.5 × 6.35 mm | STEP · STL |
| cap-2in | solid end cap (16AMP) for 2 in: Ø64 × 6.35 mm | STEP · STL |
| cap-2.5in | solid end cap (16AMP) for 2.5 in: Ø77.5 × 6.35 mm | STEP · STL |
| cap-3in | solid end cap (16AMP) for 3 in: Ø91 × 6.35 mm | STEP · STL |
| cap-4in | solid end cap (16AMP) for 4 in: Ø119 × 7.92 mm | STEP · STL |
| ferrule-0.5in-12.7mm | ½ in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-0.5in-28.6mm | ½ in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-0.5in-3in | ½ in spool, 3 in face to face | STEP · STL |
| spool-0.5in-6in | ½ in spool, 6 in face to face | STEP · STL |
| spool-0.5in-12in | ½ in spool, 12 in face to face | STEP · STL |
| gasket-0.5in | ½ in Type B gasket (ISO 2852 profile) | STEP · STL |
| ferrule-0.75in-12.7mm | ¾ in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-0.75in-28.6mm | ¾ in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-0.75in-3in | ¾ in spool, 3 in face to face | STEP · STL |
| spool-0.75in-6in | ¾ in spool, 6 in face to face | STEP · STL |
| spool-0.75in-12in | ¾ in spool, 12 in face to face | STEP · STL |
| gasket-0.75in | ¾ in Type B gasket (ISO 2852 profile) | STEP · STL |
| ferrule-1in-12.7mm | 1 in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-1in-28.6mm | 1 in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-1in-3in | 1 in spool, 3 in face to face | STEP · STL |
| spool-1in-6in | 1 in spool, 6 in face to face | STEP · STL |
| spool-1in-12in | 1 in spool, 12 in face to face | STEP · STL |
| gasket-1in | 1 in Type B gasket (ISO 2852 profile) | STEP · STL |
| ferrule-1.5in-12.7mm | 1½ in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-1.5in-28.6mm | 1½ in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-1.5in-3in | 1½ in spool, 3 in face to face | STEP · STL |
| spool-1.5in-6in | 1½ in spool, 6 in face to face | STEP · STL |
| spool-1.5in-12in | 1½ in spool, 12 in face to face | STEP · STL |
| gasket-1.5in | 1½ in Type B gasket (ISO 2852 profile) | STEP · STL |
| ferrule-2in-12.7mm | 2 in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-2in-28.6mm | 2 in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-2in-3in | 2 in spool, 3 in face to face | STEP · STL |
| spool-2in-6in | 2 in spool, 6 in face to face | STEP · STL |
| spool-2in-12in | 2 in spool, 12 in face to face | STEP · STL |
| gasket-2in | 2 in Type B gasket (ISO 2852 profile) | STEP · STL |
| ferrule-2.5in-12.7mm | 2½ in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-2.5in-28.6mm | 2½ in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-2.5in-3in | 2½ in spool, 3 in face to face | STEP · STL |
| spool-2.5in-6in | 2½ in spool, 6 in face to face | STEP · STL |
| spool-2.5in-12in | 2½ in spool, 12 in face to face | STEP · STL |
| gasket-2.5in | 2½ in Type B gasket (ISO 2852 profile) | STEP · STL |
| ferrule-3in-12.7mm | 3 in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-3in-28.6mm | 3 in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-3in-3in | 3 in spool, 3 in face to face | STEP · STL |
| spool-3in-6in | 3 in spool, 6 in face to face | STEP · STL |
| spool-3in-12in | 3 in spool, 12 in face to face | STEP · STL |
| gasket-3in | 3 in Type B gasket (ISO 2852 profile) | STEP · STL |
| ferrule-4in-12.7mm | 4 in short weld ferrule (14WMP), 0.5 in long | STEP · STL |
| ferrule-4in-28.6mm | 4 in medium weld ferrule (L14AM7), 1.125 in long | STEP · STL |
| spool-4in-3in | 4 in spool, 3 in face to face | STEP · STL |
| spool-4in-6in | 4 in spool, 6 in face to face | STEP · STL |
| spool-4in-12in | 4 in spool, 12 in face to face | STEP · STL |
| gasket-4in | 4 in Type B gasket (ISO 2852 profile) | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=sanitary-clamp-caps-ferrules-spools
How it fits
Connects to
Tri-clamp clamps, hot-joint gaskets and heat shieldsclamp per joint
Sanitary clamp elbows, 90° and 45°, ½ to 4 infittings
Sanitary clamp tees, short-outlet tees and…fittings
Sanitary clamp reducers, concentric and…size changesAlternatives
Tri-clamp spool, 1.5 and 2 inchthe original 1½ / 2 in spools
Tri-clamp sanitary ferrule, 1/2 to 4 inchthe original 1–3 in ferrulesYou might also need
Questions
What is the flange diameter of a 2 in tri-clamp?
64.0 mm (2.516 in); 1 and 1½ in share 50.5 mm, ½ and ¾ in share the 25.0 mm mini flange, 2½ in is 77.5, 3 in 91.0, 4 in 119.0.
Is a 1½ in tri-clamp the same as a 1 in?
Same 50.5 mm flange and clamp, different tube: 38.1 vs 25.4 mm OD.
What is the wall of sanitary tube?
0.065 in (1.65 mm, 16 ga) from ½ to 3 in; 0.083 in (2.11 mm) at 4 in.