# Two-bolt clamps for DIN 32676 flanges 34, 106, 155 and 183 mm

> What clamp fits a 34 mm DIN 32676 flange?

- Category: Hardware › Sanitary clamp fittings
- Kind: Hardware
- Basis: Groove = the ISO 2852 rim's 20° back cone mirrored, as tri-clamp-clamps on this site; 50.5, 64, 91 and 119 mm flanges use those inch clamps
- Page: https://xemstudio.com/objects/sanitary-clamp-din-32676-clamps/ · JSON: https://xemstudio.com/api/geometry?object=sanitary-clamp-din-32676-clamps · Plain text: https://xemstudio.com/objects/sanitary-clamp-din-32676-clamps/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- Only the metric-only flange sizes are here; the shared sizes are on the tri-clamp clamps page.
- 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

| flange_mm | clamp_od_mm | width_mm |
|---|---|---|
| 34.0 | 43.0 | 18.8 |
| 106.0 | 115.0 | 18.8 |
| 155.0 | 164.0 | 20.6 |
| 183.0 | 192.0 | 21.7 |

## Where the files are

- DIN: [DIN 32676 clamp connections, series A on DIN 11850 tube (DN10–DN150): flange and bead per the Rubber Fab chart](https://www.din.de/en/getting-involved/standards-committees/nal/publications/wdc-beuth:din21:353366380) — standard — DIN; dimensions are facts (verify at link)
- Rubber Fab: [Tri-clamp dimensions chart (ID, OD, bead per clamp size, ½ to 12 in and DIN 32676)](https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf) — PDF — publisher's chart; dimensions cited, nothing copied
- 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)](https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf) — PDF — maker chart; dimensions are facts (verify at link)

## Free STEP/STL (4 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/index.json

- clamp-half-34mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-34mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-34mm.stl) — two-bolt clamp half for the 34 mm flange (two per joint): 20° groove, contact after 0.4, 0.6 squeeze, M5 × 30 bolts
- clamp-half-106mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-106mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-106mm.stl) — two-bolt clamp half for the 106 mm flange (two per joint): 20° groove, contact after 0.4, 0.6 squeeze, M5 × 30 bolts
- clamp-half-155mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-155mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-155mm.stl) — two-bolt clamp half for the 155 mm flange (two per joint): 20° groove, contact after 0.4, 0.6 squeeze, M5 × 30 bolts
- clamp-half-183mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-183mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-clamps/clamp-half-183mm.stl) — two-bolt clamp half for the 183 mm flange (two per joint): 20° groove, contact after 0.4, 0.6 squeeze, M5 × 30 bolts

## Questions

**Which clamp for DN50?**

DN50 has the 64 mm flange: use the 2 in tri-clamp clamp.

## Fits with

- [DIN 32676 clamp ferrules, series A (metric), DN10 to DN150](https://xemstudio.com/objects/sanitary-clamp-din-32676-ferrules/)
- [Tri-clamp clamp, two-bolt: every flange size ½ to 4 in](https://xemstudio.com/objects/tri-clamp-clamps/)