Pneumatic Products, Lightweight Couplings

Series 320, DN 7.6

  • Extremely high flow capacity
  • Easy to connect
  • Ultra low weight

Series 320 couplings feature the original high-flow valve design upon which all other CEJN pneumatic couplings are based. Their popularity has made Series 320 a European standard. The series is easy-to-handle, one-hand operated and offers long service life. Male threads on the couplings and nipples feature pre-applied thread sealant. This aluminum lightweight version offers extra low weight with the same quality performance as the standard version. And since aluminum is a non-ferrous material, Series 320 Aluminum couplings offer low magnetic interference and will not generate sparks.


Series 320 is also available in Standard, Vented Safety, Soft-Line and Multi-Link versions.

Series 320, DN 7.6
Technical data
Nominal flow diameter: 7.6 mm (5/16")
Air flow: 2100 l/min (74.1 CFM)
Max. working pressure: 16 bar (232 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Connection force: 70.7 N
Temperature range: 20°C — +100°C (68°F — +212°F)
Material coupling: Aluminum
Standards: CEJN Original Standard, Eurostandard 7.6 (7.4)
Markets: Global

Flow capacity is measured at 6 bar (87 PSI) inlet pressure, and pressure drop at 0.5 bar (7 PSI).

Air Flow
Pressure drop, bar (PSI)
Series 320, DN 7.6
Flow, l/min. (CFM)
Aluminum couplings Part No. Connection
Hose connection 10 320 19321032019326.3 mm (1/4")
 10 320 193410320193410 mm (3/8")
 10 320 193510320193513 mm (1/2")
Female thread 10 320 1942103201942G 1/4"
Stream-Line connection 10 320 19601032019606.5 x 10 mm
 10 320 19621032019628 x 12 mm


Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards.

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