Connect Beer tailpiece (barb + hex) to 1/4" barb (liquid)
How to join 7/8"-14 nut, 1/4" or 3/16" barb and 1/4" hose barb, and what stops it leaking.
These connect directly. Beer tailpiece (barb + hex) mates with 1/4" barb (liquid) without an adapter.
The two ends
- End A
- Beer tailpiece (barb + hex) (7/8"-14 nut, 1/4" or 3/16" barb)
- End B
- 1/4" barb (liquid) (1/4" hose barb)
- A seals on
- flat washer against the shank end under the beer nut; barb under a worm clamp on the hose
- B seals on
- barb ridges plus a worm clamp on the hose
- Part needed
- none, direct fit
A beer tailpiece already ends in a 1/4 or 3/16 barb, so vinyl beer line pushes straight on under a worm clamp. The tailpiece is simply the piece that turns a 7/8-14 shank thread into a hose barb.
Match line ID to the barb, 3/16 or 1/4, and clamp it. The barb is the same clamp-sealed join as anywhere else on the liquid side, and an unclamped barb blows off the moment the keg is under pressure.
Related connections
Sources: American Homebrewers Association: the anatomy of a beer faucet (7/8-14 shank, beer nut, tailpiece, washer) · Star Beverage draft beer tubing tailpiece, barb, hex nut, clamp kit (3/8 ID) · MoreFlavor thread types explained (MFL/FFL, NPT, BSP)