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Sanitary clamp gaskets, ISO 2852 Type B: ½ to 4 in
What are tri-clamp gasket dimensions for each size? · Standard part · basis: ISO 2852 Type B profile (bead 5.5, web 1.7, lip 1.1 × ±2.8) on each size; OD = flange − 1, lip ID = bore − 2.2
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
- The Type B gasket for each size: a 5.5 mm bead that fills both face recesses, a 1.7 mm web on the lands, and a 1.1 mm inner lip standing 2.8 mm each side of the centre plane.
- OD = flange − 1 mm; bead out to the groove diameter − 0.4 mm; lip ID = bore − 2.2 mm. Each file is drawn for its tube size (the ½ and ¾ in gaskets differ only in lip ID).
- The 1.5 and 2 in gaskets on the tri-clamp gasket page have the same profile with the bead out to the groove diameter itself.
Sizes
| size_in | od_mm | bead_od_mm | lip_id_mm | bead_mm | web_mm |
|---|---|---|---|---|---|
| ½ | 24.0 | 17.6 | 7.2 | 5.5 | 1.7 |
| ¾ | 24.0 | 17.6 | 13.55 | 5.5 | 1.7 |
| 1 | 49.5 | 43.1 | 19.9 | 5.5 | 1.7 |
| 1½ | 49.5 | 43.1 | 32.6 | 5.5 | 1.7 |
| 2 | 63.0 | 56.1 | 45.3 | 5.5 | 1.7 |
| 2½ | 76.5 | 70.1 | 58.0 | 5.5 | 1.7 |
| 3 | 90.0 | 83.1 | 70.7 | 5.5 | 1.7 |
| 4 | 118.0 | 111.1 | 95.18 | 5.5 | 1.7 |
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 8 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| gasket-0.5in | ½ in Type B gasket (ISO 2852 profile) | STEP · STL |
| gasket-0.75in | ¾ in Type B gasket (ISO 2852 profile) | STEP · STL |
| gasket-1in | 1 in Type B gasket (ISO 2852 profile) | STEP · STL |
| gasket-1.5in | 1½ in Type B gasket (ISO 2852 profile) | STEP · STL |
| gasket-2in | 2 in Type B gasket (ISO 2852 profile) | STEP · STL |
| gasket-2.5in | 2½ in Type B gasket (ISO 2852 profile) | STEP · STL |
| gasket-3in | 3 in Type B gasket (ISO 2852 profile) | STEP · STL |
| gasket-4in | 4 in Type B gasket (ISO 2852 profile) | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=sanitary-clamp-gaskets
How it fits
Goes in or on
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Questions
What size is a 2 inch tri-clamp gasket?
Ø63.0 OD, bead to Ø56.1, lip ID Ø45.3; 5.5 mm bead, 1.7 mm web.
Are ½ and ¾ inch gaskets the same?
Same Ø24.0 OD on the 25.0 mini flange; the lip ID differs: Ø7.2 for ½ in, Ø13.55 for ¾ in.