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Sanitary clamp end caps (16AMP): ½ to 4 in
What are the dimensions of a tri-clamp end cap for each size? · Standard part · basis: ASME BPE / 3-A clamp-fitting dimensions published identically by Dixon and Steel & O'Brien; ISO 2852 face profile
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
- 6 in table
Notes
- A solid end cap (16AMP) with the ISO 2852 face. Caps go by flange, not tube: one cap closes both ½ and ¾ in (Ø25.0), one closes both 1 and 1½ in (Ø50.5).
- Thickness: 4.78 mm (0.188 in) on the Ø25.0 cap, 6.35 mm (0.25 in) on Ø50.5 to Ø91.0, 7.92 mm (0.312 in) on the 4 in Ø119.0 cap.
- Faces are the ISO 2852 profile (2.85 mm rim, 1.6 mm gasket recess, 20° back cone run on from the rim to the flat back, as on a ferrule) on the BPE flange diameters; the groove diameter on ½, ¾ and 4 in is derived (flange − 7.0 / 7.5 mm), the rest is from the standard.
- The 6 mm cap the tri-clamp engine heads are built on is a separate page (tri-clamp-end-cap).
Sizes
| file | flange_od_mm | groove_mm | thickness_mm |
|---|---|---|---|
| cap-0.5–0.75in | 25.0 | 18.0 | 4.78 |
| cap-1–1.5in | 50.5 | 43.5 | 6.35 |
| cap-2in | 64.0 | 56.5 | 6.35 |
| cap-2.5in | 77.5 | 70.5 | 6.35 |
| cap-3in | 91.0 | 83.5 | 6.35 |
| cap-4in | 119.0 | 111.5 | 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 |
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 6 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 |
Plain text: sheet.txt · JSON: /api/geometry?object=sanitary-clamp-end-caps
How it fits
Goes in or on
Sanitary clamp weld ferrules, short and mediumcloses a ferrule face of the same flangeAlternatives
Tri-clamp end cap, 6 mm flat6 mm cap, 1.5 and 2 inAlso needed
Sanitary clamp gaskets, ISO 2852 Type BType B gasket between the faces
Tri-clamp clamp, two-boltclamp over the jointYou might also need
Questions
How thick is a 2 inch tri-clamp end cap?
6.35 mm (0.25 in) on the Ø64.0 flange.
Does a 1 inch cap fit a 1½ inch ferrule?
Yes: both use the Ø50.5 flange, so one cap closes either.