Sanitary clamp end caps (16AMP): ½ to 4 in — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/sanitary-clamp-end-caps/  (CC BY 4.0)
Basis: ASME BPE / 3-A clamp-fitting dimensions published identically by Dixon and Steel & O'Brien; ISO 2852 face profile
Catalog version: 2026-10-20

Sizes: see table below
- A solid end cap (16AMP) with the ISO 2852 face. Caps go by flange, not tube: one cap closes both ½ and ¾ in (Ø25.0), one closes both 1 and 1½ in (Ø50.5).
- Thickness: 4.78 mm (0.188 in) on the Ø25.0 cap, 6.35 mm (0.25 in) on Ø50.5 to Ø91.0, 7.92 mm (0.312 in) on the 4 in Ø119.0 cap.
- Faces are the ISO 2852 profile (2.85 mm rim, 1.6 mm gasket recess, 20° back cone run on from the rim to the flat back, as on a ferrule) on the BPE flange diameters; the groove diameter on ½, ¾ and 4 in is derived (flange − 7.0 / 7.5 mm), the rest is from the standard.
- The 6 mm cap the tri-clamp engine heads are built on is a separate page (tri-clamp-end-cap).

file  flange_od_mm  groove_mm  thickness_mm
cap-0.5–0.75in  25.0  18.0  4.78
cap-1–1.5in  50.5  43.5  6.35
cap-2in  64.0  56.5  6.35
cap-2.5in  77.5  70.5  6.35
cap-3in  91.0  83.5  6.35
cap-4in  119.0  111.5  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, 6 parts): https://xemstudio.com/files/hardware/sanitary-clamp-end-caps/index.json
API: https://xemstudio.com/api/geometry?object=sanitary-clamp-end-caps