Branch plugs for a 2 in tri-clamp cross crankcase — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/tri-clamp-cross-branch-plug/  (CC BY 4.0)
Basis: ASME BPE 2 in bore Ø47.5; ISO 2852 Type B lip Ø45.3 and cap recess 1.6; the saddle is the Ø47.5 run bore
Catalog version: 2026-10-20

Sizes: see table below
- A branch plug fills a 2 in cross branch from the crank chamber to the cap: Ø47.5 up to the gasket lip, then Ø45.3 through the lip to the cap's recess floor, so no gas is left in the joint.
- Its inner end is cut by the Ø47.5 run, so it meets the crankcase insert face to face, and a Ø29 nose runs on into the insert's crank chamber up to the crank. The blind plug goes on the end-cap side; the bored one (Ø16) takes the bearing cap's spigot.
- Fits: Ø47.5 slide in the bore; Ø45.3 touches the lip; the Ø16 bore is a slide fit on the spigot.

file  nose_end_mm  bore
branch-plug-2in-blind  15.5  none
branch-plug-2in-bore16  13.5  Ø16

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- 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
- 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
- Long Earth Society: Engine builds — web, video — LES site — https://longearthsociety.com/engineering/

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