Pneumatic Products, eSafe Couplings & Nipples

Series 320 eSafe, DN 7.6

  • Vented safety function
  • Extremely high flow capacity
  • Strong and durable


eSafe Series 320 coupling is an easy-to-handle high performing coupling with a long service life. eSafe is a one hand operated safety coupling that vents before disconnection eliminating the risk of hose whip. Male threads on the couplings and nipples feature pre-applied thread sealant. The couplings have a smaller outside dimension than comparable designs. Full automatic operation ensures easy handling. eSafe complies with ISO Standard 4414 and EN 983.


Series 320 is also available in Soft-Line, Multi-Link versions and in stainless steel version, series 326.

Series 320 eSafe, DN 7.6
eSafe vented safety coupling Part No. Connection
Hose connection 10 320 2002 1032020026.3 mm (1/4")
 10 320 2003 1032020038 mm (5/16")
 10 320 2004 10320200410 mm (3/8")
 10 320 2005 10320200513 mm (1/2")
 10 320 2009 1032020099 mm
Male thread connection 10 320 2152 103202152R 1/4"
 10 320 2154 103202154R 3/8"
 10 320 2155 103202155R 1/2"
 10 320 2452 103202452NPT 1/4"
 10 320 2454 103202454NPT 3/8"
 10 320 2455 103202455NPT 1/2"
Female thread connection 10 320 2202 103202202G 1/4"
 10 320 2204 103202204G 3/8"
 10 320 2205 103202205G 1/2"
 10 320 2402 103202402NPT 1/4"
 10 320 2404 103202404NPT 3/8"
 10 320 2405 103202405NPT 1/2"
Stream-Line connection 10 320 2058 1032020585 x 8 mm
 10 320 2060 1032020606.5 x 10 mm
 10 320 2062 1032020628 x 12 mm
 10 320 2063 1032020639.5 x 13.5 mm
 10 320 2066 10320206611 x 16 mm
 10 320 2068 10320206813 x 18 mm


eSafe coupling with lock ring Part No. Connection
Stream-Line connection 10 320 2090 1032020906.5 x 10 mm
 10 320 2092 1032020928 x 12 mm
 10 320 2096 10320209611 x 16 mm
Female thread 10 320 2244 103202244G 3/8" Fem


eSafe Soft-Line coupling Part No. Connection
Stream-Line connection 10 320 2082 1032020828 x 12 mm
 10 320 2085 10320208511 x 16 mm
 10 320 2088 10320208813 x 18 mm


Nipples Part No. Connection
Hose connection 10 320 5001 1032050015 mm (3/16")
 10 320 5002 1032050026.3 mm (1/4")
 10 320 5003 1032050038 mm (5/16")
 10 320 5009 1032050099 mm
 10 320 5004 10320500410 mm (3/8")
 10 320 5005 10320500513 mm (1/2")
Male thread 10 320 5151 103205151R 1/8"
 10 320 5152 103205152R 1/4"
 10 320 5154 103205154R 3/8"
 10 320 5155 103205155R 1/2"
 10 320 5263 103205263G 1/4"
 10 320 5264 103205264G 3/8"
 10 320 5265 103205265G 1/2"
 10 320 5451 103205451NPT 1/8"
 10 320 5452 103205452NPT 1/4"
 10 320 5454 103205454NPT 3/8"
 10 320 5455 103205455NPT 1/2"
Female thread 10 320 5201 103205201G 1/8"
 10 320 5202 103205202G 1/4"
 10 320 5204 103205204G 3/8"
 10 320 5205 103205205G 1/2"
 10 320 5401 103205401NPT 1/8"
 10 320 5402 103205402NPT 1/4"
 10 320 5404 103205404NPT 3/8"
 10 320 5405 103205405NPT 1/2"
Stream-Line connection 10 320 5058 1032050585 x 8 mm
 10 320 5060 1032050606.5 x 10 mm
 10 320 5062 1032050628 x 12 mm
 10 320 5063 1032050639.5 x 13.5 mm
 10 320 5066 10320506611 x 16 mm
 10 320 5068 10320506813 x 18 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.
Technical data
Nominal flow diameter: 7.6 mm (5/16")
Air flow: 2250 l/min (79.4 CFM)
Max. working pressure: 16 bar (232 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Connection force: 86 N
Temperature range: -20°C — +100°C (-4°F — +212°F)
Material coupling: Zinc-plated steel/brass
Material nipple: Hardened zinc-plated steel
Interchangeable with: Parker Rectus 25/26, Parker Tema 1600/1625, Prevost ESC07/ERC07/ESI07/ISC08, Oetiker SC C, Hansen Auto-Flo 24
Standards: CEJN Original, Eurostandard 7.4 mm
Markets: Global

Flow capacity is measured at 100 PSI (6.9 bar) inlet pressure, and pressure drop at 6 PSI (0.4 bar).

Air Flow
Pressure drop, PSI (bar) Series 320 eSafe, DN 7.6 Flow, CFM (l/min)

Available files for download

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