Tri-clamp gasket, ISO 2852 Type B: 1.5 and 2 in — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/tri-clamp-gasket/  (CC BY 4.0)
Basis: ISO 2852 Type B profile: bead U 5.5, web T1 1.7, lip 1.1 thick projecting ±2.8 into the bore; measured from the files
Catalog version: 2026-10-20

Sizes: see table below
- The Type B gasket between two ISO 2852 faces: a 5.5 mm bead that fills both face recesses, a 1.7 mm web on the lands, and an inner lip into the bore.
- 2 in: OD Ø63.0, bead out to Ø56.5 (the groove diameter), lip ID Ø45.3. 1.5 in: OD Ø49.5, bead to Ø43.5, lip ID Ø32.6. The lip is 1.1 mm thick radially and stands 2.8 mm each side of the centre plane (5.6 overall).
- The sanitary-clamp gasket page carries the same profile for every size ½ to 4 in, with the bead 0.2 mm inside the groove diameter on radius.

size_in  od_mm  bead_od_mm  lip_id_mm  bead_mm  web_mm  overall_mm
1.5  49.5  43.5  32.6  5.5  1.7  5.6
2  63.0  56.5  45.3  5.5  1.7  5.6

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- ISO (via iTeh sample): ISO 2852:1974 clamp liners with gaskets (face and gasket profile, §6.1 and §8) — PDF — standard excerpt; dimensions are facts — https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf
- McMaster-Carr: Sanitary caps and gaskets (free STEP per part, for your own design use; no redistribution) — STEP, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/sanitary-fittings/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 2 parts): https://xemstudio.com/files/hardware/tri-clamp-gasket/index.json
API: https://xemstudio.com/api/geometry?object=tri-clamp-gasket