Sanitary clamp caps, ferrules, spools and gaskets, ½ to 4 in (tri-clamp style, BPE) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/sanitary-clamp-caps-ferrules-spools/ (CC BY 4.0) Basis: ASME BPE / 3-A clamp-fitting dimensions published identically by two manufacturers; ISO 2852 face profile; drawn by Xem Studio from those numbers Catalog version: 2026-10-20 Sizes: see table below - One size table for every sanitary clamp size from ½ to 4 in: tube OD and wall, bore, flange OD, gasket groove, and cap thickness. Caps (16AMP) are per flange size: one cap closes both ½ and ¾ in (25.0 mm), and one closes both 1 and 1½ in (50.5 mm). - Ferrules come 0.5 in (short) and 1.125 in (medium) long; spools 3, 6 and 12 in face to face. - Faces: ISO 2852 profile (2.85 mm rim, 1.6 mm gasket recess, 20° back cone) on the BPE flange diameters ½–¾ in 25.0, 1–1½ in 50.5, 2 in 64.0, 2½ in 77.5, 3 in 91.0, 4 in 119.0 mm; tube OD 12.7 / 19.05 / 25.4 / 38.1 / 50.8 / 63.5 / 76.2 / 101.6 mm, wall 1.65 mm (4 in: 2.11). The gasket-groove diameter on ½, ¾ and 4 in is derived (flange − 7.0 / 7.5 mm, the land width of every size ISO 2852 lists); the rest is from the standard. size_in tube_od_mm wall_mm bore_mm flange_od_mm groove_mm groove_source cap_mm ½ 12.7 1.65 9.4 25.0 18.0 derived 4.78 ¾ 19.05 1.65 15.75 25.0 18.0 derived 4.78 1 25.4 1.65 22.1 50.5 43.5 ISO 2852 6.35 1½ 38.1 1.65 34.8 50.5 43.5 ISO 2852 6.35 2 50.8 1.65 47.5 64.0 56.5 ISO 2852 6.35 2½ 63.5 1.65 60.2 77.5 70.5 ISO 2852 6.35 3 76.2 1.65 72.9 91.0 83.5 ISO 2852 6.35 4 101.6 2.11 97.38 119.0 111.5 derived 7.92 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - ASME: BPE Bioprocessing Equipment (clamp fitting dimensions, tube OD and wall) — standard — ASME; dimensions are facts [verify license at link] — https://www.asme.org/codes-standards/find-codes-standards/bpe-bioprocessing-equipment - ISO (via iTeh sample): ISO 2852 clamp liners: face profile and flange / groove diameters — PDF — standard excerpt; dimensions are facts — https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf - Dixon Sanitary: Clamp elbows, ferrules: dimension sheet — PDF — publisher's catalogue; dimensions cited, nothing copied — https://dixonvalve.com/en/media/1397776 - Steel & O'Brien: Sanitary products catalog 2024 (clamp fittings dimension tables) — PDF — publisher's catalogue; dimensions cited, nothing copied — https://www.steelobrien.com/wp-content/uploads/2024/03/Sanitary-2024-FINAL.pdf Free files (CC BY 4.0, Xem Studio; STEP + STL, 54 parts): https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/index.json API: https://xemstudio.com/api/geometry?object=sanitary-clamp-caps-ferrules-spools