Transfer tee for 4 × 6 mm tube — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/transfer-tee-4mm/  (CC BY 4.0)
Basis: Sockets at the 6 mm OD of 4 × 6 tube (fit: press), flow bores at its 4 mm ID
Catalog version: 2026-10-20

Sizes: see table below
- A tee with a Ø10 body: the run along X with port faces 13 mm either side of the centre, the branch at right angles with its port face 13 mm out.
- Each port is a Ø6 socket 8 deep: the 6 mm OD of 4 × 6 tube pushes in (fit: press) until it bottoms 5 mm from the centre. Ø4 flow bores, the tube's ID, join the three socket floors.
- Same ports as the transfer elbow; the tee joins three lines (hot cylinder, cold cylinder and a third line such as a gauge).

parameter  value
body  Ø10, run 26 port to port, branch 13
sockets  Ø6 × 8 (3)
flow bores  Ø4
tube end from centre  5

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Stirling engine — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Stirling_engine
- Long Earth Society: Engine builds — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/transfer-tee-4mm/index.json
API: https://xemstudio.com/api/geometry?object=transfer-tee-4mm