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DIN 32676 clamp gaskets (Type B profile), DN10 to DN150
What gasket fits a DIN 32676 DN25 clamp? · Standard part · basis: Bead diameter per the Rubber Fab chart; ISO 2852 Type B section; bore per DIN 11850 tube
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 12 in table
Notes
- The bead diameter follows the flange; the inner lip follows the tube, so a DN25 and a 1 in gasket share a flange but not a lip.
- Every clamp face is the ISO 2852 profile used across this site: 2.85 mm rim, flat face with the gasket groove (K 1.6 deep, R3 1.2 bottom, 23° walls, P2 0.8 edges) on C2, 20° back cone. Flange C3 / groove C2 / tube OD × wall, mm: ½–¾ in 25.0 / 20.4 (derived) / 12.7–19.05 × 1.65; 1–1½ in 50.5 / 43.5 / 25.4–38.1 × 1.65; 2 in 64.0 / 56.5 / 50.8 × 1.65; 2½ in 77.5 / 70.5 / 63.5 × 1.65; 3 in 91.0 / 83.5 / 76.2 × 1.65; 4 in 119.0 / 110.0 / 101.6 × 2.11; 6 in 166.9 (6.570 in) / 156.5 / 152.4 × 2.77; 8 in 217.7 (8.570 in) / 207.0 / 203.2 × 2.77; 10 in 268.5 / 261.0 / 254.0 × 3.40; 12 in 319.3 / 311.8 / 304.8 × 3.40.
Sizes
| dn | od_mm | bead_mm | lip_id_mm |
|---|---|---|---|
| DN10 | 33.0 | 27.5 | 7.8 |
| DN15 | 33.0 | 27.5 | 13.8 |
| DN20 | 33.0 | 27.5 | 17.8 |
| DN25 | 49.5 | 43.5 | 23.8 |
| DN32 | 49.5 | 43.5 | 29.8 |
| DN40 | 49.5 | 43.5 | 35.8 |
| DN50 | 63.0 | 56.5 | 47.8 |
| DN65 | 90.0 | 83.5 | 63.8 |
| DN80 | 105.0 | 97.0 | 78.8 |
| DN100 | 118.0 | 110.0 | 97.8 |
| DN125 | 154.0 | 146.0 | 122.8 |
| DN150 | 182.0 | 174.0 | 147.8 |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Rubber Fab | Tri-clamp dimensions chart (ID, OD, bead per clamp size, ½ to 12 in and DIN 32676) | publisher's chart; dimensions cited, nothing copied | |
| DIN | DIN 32676 clamp connections, series A on DIN 11850 tube (DN10–DN150): flange and bead per the Rubber Fab chart | standard | DIN; dimensions are facts verify |
| Rubber Fab | Tri-Clamp gasket dimensional chart: gasket ID, OD and bead diameter per size (2 in bead 2.22 in / 56.50 mm, 1.5 in 1.71 / 43.50, 3 in 3.29 / 83.50) | maker chart; dimensions are facts verify |
Free files
★ Free files 12 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| gasket-dn10 | DN10 gasket: OD 33, bead Ø27.5, lip ID 7.8 | STEP · STL |
| gasket-dn15 | DN15 gasket: OD 33, bead Ø27.5, lip ID 13.8 | STEP · STL |
| gasket-dn20 | DN20 gasket: OD 33, bead Ø27.5, lip ID 17.8 | STEP · STL |
| gasket-dn25 | DN25 gasket: OD 49.5, bead Ø43.5, lip ID 23.8 | STEP · STL |
| gasket-dn32 | DN32 gasket: OD 49.5, bead Ø43.5, lip ID 29.8 | STEP · STL |
| gasket-dn40 | DN40 gasket: OD 49.5, bead Ø43.5, lip ID 35.8 | STEP · STL |
| gasket-dn50 | DN50 gasket: OD 63, bead Ø56.5, lip ID 47.8 | STEP · STL |
| gasket-dn65 | DN65 gasket: OD 90, bead Ø83.5, lip ID 63.8 | STEP · STL |
| gasket-dn80 | DN80 gasket: OD 105, bead Ø97, lip ID 78.8 | STEP · STL |
| gasket-dn100 | DN100 gasket: OD 118, bead Ø110, lip ID 97.8 | STEP · STL |
| gasket-dn125 | DN125 gasket: OD 154, bead Ø146, lip ID 122.8 | STEP · STL |
| gasket-dn150 | DN150 gasket: OD 182, bead Ø174, lip ID 147.8 | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=sanitary-clamp-din-32676-gaskets

Fits with
Questions
Can I use a 1½ in gasket on DN40?
It seals on the same bead; its lip is 1.5 mm smaller than the DN40 bore, so it stands slightly into the flow.

