DIN 32676 clamp ferrules, series A (metric), DN10 to DN150 — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/sanitary-clamp-din-32676-ferrules/  (CC BY 4.0)
Basis: DIN 32676 series A on DIN 11850 tube: tube OD × wall per DIN 11850 series 2; flange and gasket bead per the Rubber Fab chart (its gasket IDs match these bores); ISO 2852 face profile
Catalog version: 2026-10-20

Sizes: see table below
- Metric clamp ferrules for European fittings and equipment: DN10–DN20 share the 34 mm flange, DN25–DN40 the 50.5, DN50 64, DN65 91, DN80 106, DN100 119, DN125 155, DN150 183.
- A 50.5 or 64 mm metric flange mates with the inch clamp of the same flange size; the tube behind it is metric.
- 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.

dn  tube_od_mm  wall_mm  bore_mm  flange_mm  bead_mm
DN10  13.0  1.5  10.0  34.0  27.5
DN15  19.0  1.5  16.0  34.0  27.5
DN20  23.0  1.5  20.0  34.0  27.5
DN25  29.0  1.5  26.0  50.5  43.5
DN32  35.0  1.5  32.0  50.5  43.5
DN40  41.0  1.5  38.0  50.5  43.5
DN50  53.0  1.5  50.0  64.0  56.5
DN65  70.0  2.0  66.0  91.0  83.5
DN80  85.0  2.0  81.0  106.0  97.0
DN100  104.0  2.0  100.0  119.0  110.0
DN125  129.0  2.0  125.0  155.0  146.0
DN150  154.0  2.0  150.0  183.0  174.0

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- 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 license at link] — https://www.din.de/en/getting-involved/standards-committees/nal/publications/wdc-beuth:din21:353366380
- Rubber Fab: Tri-clamp dimensions chart (ID, OD, bead per clamp size, ½ to 12 in and DIN 32676) — PDF — publisher's chart; dimensions cited, nothing copied — https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf
- 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) — PDF — maker chart; dimensions are facts [verify license at link] — https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf

Free files (CC BY 4.0, Xem Studio; STEP + STL, 24 parts): https://xemstudio.com/files/hardware/sanitary-clamp-din-32676-ferrules/index.json
API: https://xemstudio.com/api/geometry?object=sanitary-clamp-din-32676-ferrules