Tri-clamp vessels with a dished or round welded bottom: 4, 6 and 8 in, 12 to 24 in deep — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/tri-clamp-dished-bottom-vessels/ (CC BY 4.0) Basis: Xem Studio design: sanitary tube (4 in 4.000 × 0.083, 6 in 6.000 × 0.109, 8 in 8.000 × 0.109) with a clamp face on top and a welded head on the bottom: flanged-and-dished (crown radius = OD, knuckle 6 % of OD) or hemispherical Catalog version: 2026-10-20 Sizes: see table below - A closed pot made from sanitary tube: welded bottom, clamp face on top, so any cap, dome lid, thermowell cap or ported cap of the same size closes it. The 6 in × 18 in is a small fermenter or brew pot; depth is measured from the clamp face to the outside of the bottom. - Dished (F&D) bottoms are shallow and stand on a ring; round bottoms are deeper and drain to one point. - 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. size_in tube_od_mm wall_mm dished_bottom_h_mm round_bottom_h_mm depths_in 4 101.6 2.11 17.2 50.8 12, 18, 24 6 152.4 2.77 25.8 76.2 12, 18, 24 8 203.2 2.77 34.4 101.6 12, 18, 24 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - ASME: Flanged and dished (F&D) heads: crown radius = OD, knuckle radius 6 % of OD (BPVC Section VIII torispherical head) — standard — ASME; proportions are facts [verify license at link] — https://www.asme.org/codes-standards/find-codes-standards/bpvc-viii-1-bpvc-section-viii-rules-for-construction-of-pressure-vessels-division-1 - GW Kent: Tri-clamp fittings guide: tube OD, flange OD and ID per size to 12 in; solid cap thickness — web — publisher's guide; dimensions cited — https://www.gwkent.com/triclamp-guide - 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, 18 parts): https://xemstudio.com/files/hardware/tri-clamp-dished-bottom-vessels/index.json API: https://xemstudio.com/api/geometry?object=tri-clamp-dished-bottom-vessels