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Sanke A coupler (German slider) (type A, German slider)

Where type A, German slider is used, its real dimensions, and how to connect it to other keg fittings.

Published dimensions

Designation
type A, German slider
Size / thread
5/8" BSP beer and gas ports, German slider probe
Fitting form
single-probe keg coupler
Seals on
flat washer on each threaded port
Rating / role
the German A / slider standard

Used on: German and Belgian brands such as Paulaner, Spaten, Warsteiner and Hoegaarden.

The A coupler uses a sliding probe suited to German and Belgian kegs and, like the others, dispenses through 5/8 BSP ports. It will not tap a D or S keg. Once coupled, your beer and gas line connect on the same 5/8 BSP thread as any other coupler.

Flare fittings seal on the 45 degree flare face and must never be taped. Push-in fittings seal on an O-ring against the tube wall and need the tube cut square. Barbs seal under a worm clamp. Getting the sealing method right matters more than the thread label, because most homebrew leaks are a taped flare or an unclamped barb.

Connect this fitting

Sources: Iron Mountain Refrigeration keg coupler guide (D, S, A, G, M, U Sankey systems) ยท HowdyBrewer / Micro Matic keg couplers (D, S, A, G, M, U systems)