Tri-clamp power head: ISO 2852 cap with a Ø15.9 socket for a 10 mL syringe, 1.5, 2 and 3 in — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/tri-clamp-syringe-head/  (CC BY 4.0)
Basis: ISO 2852 cap face with a Ø15.9 socket (10 mL syringe barrel OD) and an M5 port (Ø4.2 tap hole)
Catalog version: 2026-10-20

Sizes: see table below
- An ISO 2852 end cap carrying a 10 mL syringe barrel as the power cylinder, on centre.
- Socket Ø15.9 × 14 deep (floor 8 mm above the face) in a Ø22.9 boss that stands 16 mm off the back of the 6 mm cap; a Ø11.9 port through the floor joins the barrel to the engine.
- Opposite side: an M5 port (Ø4.2 tap hole) in a Ø10 boss for a sensor, a vent or a second transfer line.
- The 10 mL barrel's 14.5 mm bore sweeps about 2 mL per 12 mm of plunger stroke.

size_in  flange_od_mm  socket_mm  socket_depth_mm  port_mm  m5_tap_mm  overall_h_mm
1.5  50.5  15.9  14  11.9  4.2  22
2  64.0  15.9  14  11.9  4.2  22
3  91.0  15.9  14  11.9  4.2  22

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Long Earth Society: Tri-clamp Stirling engine builds — web, video — LES site — https://longearthsociety.com/engineering/
- James R. Senft: An Introduction to Low Temperature Differential Stirling Engines (displacer and gap design) — book — Moriya Press [verify license at link] — https://www.stirlingengine.com/
- Wikipedia: Stirling engine — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Stirling_engine

Free files (CC BY 4.0, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/tri-clamp-syringe-head/index.json
API: https://xemstudio.com/api/geometry?object=tri-clamp-syringe-head