Pneumatic Products, eSafe Couplings & Nipples

Series 310 eSafe, DN 5.3

  • Vented safety function
  • High flow capacity
  • Strong and durable


eSafe Series 310 offers a wide range of easy-to-grip couplings, including Soft-Line and Stream-Line. Male threads on the couplings and nipples feature pre-applied thread sealant. eSafe Series 310 is a vented safety coupling that is disconnected in two stages in order to vent the coupling and minimize the risk of sudden component separation. The coupling is fully automatic to ensure quick and easy handling. eSafe series complies with ISO Standard 4414 and EN 983.


Series 310 is also available in Soft-Line and Multi-Link versions.

Series 310 eSafe, DN 5.3
eSafe vented safety coupling Part No. Connection
Hose connection 10 310 2002 1031020026.3 mm (1/4")
 10 310 2003 1031020038 mm (5/16")
 10 310 2009 1031020099 mm
 10 310 2004 10310200410 mm (3/8")
 10 310 2005 10310200513 mm (1/2")
Male thread 10 310 2152 103102152R 1/4"
 10 310 2154 103102154R 3/8"
 10 310 2155 103102155R 1/2"
 10 310 2452 103102452NPT 1/4"
 10 310 2454 103102454NPT 3/8"
 10 310 2455 103102455NPT 1/2"
Female thread 10 310 2202 103102202G 1/4"
 10 310 2204 103102204G 3/8"
 10 310 2205 103102205G 1/2"
 10 310 2402 103102402NPT 1/4"
 10 310 2404 103102404NPT 3/8"
 10 310 2405 103102405NPT 1/2"
Stream-Line connection 10 310 2058 1031020585 x 8 mm
 10 310 2060 1031020606.5 x 10 mm
 10 310 2062 1031020628 x 12 mm
 10 310 2063 1031020639.5 x 13.5 mm
 10 310 2066 10310206611 x 16 mm


eSafe Soft-Line coupling Part No. Connection
Stream-Line connection 10 310 2080 1031020806.5 x 10 mm
 10 310 2082 1031020828 x 12 mm
Female thread 10 310 2232 103102232G 1/4"
 10 310 2432 103102432NPT 1/4"
 10 310 2434 103102434NPT 3/8"


Nipples Part No. Connection
Hose connection 10 310 5001 1031050015 mm (3/16")
 10 310 5002 1031050026.3 mm (1/4")
 10 310 5003 1031050038 mm (5/16")
 10 310 5004 10310500410 mm (3/8")
 10 310 5005 10310500513 mm (1/2")
Male thread 10 310 5151 103105151R 1/8"
 10 310 5152 103105152R 1/4"
 10 310 5154 103105154R 3/8"
 10 310 5252 103105252G 1/4"
 10 310 5451 103105451NPT 1/8"
 10 310 5452 103105452NPT 1/4"
 10 310 5454 103105454NPT 3/8"
 10 310 5455 103105455NPT 1/2"
Female thread 10 310 5201 103105201G 1/8"
 10 310 5202 103105202G 1/4"
 10 310 5204 103105204G 3/8"
 10 310 5401 103105401NPT 1/8"
 10 310 5402 103105402NPT 1/4"
 10 310 5404 103105404NPT 3/8"
Stream-Line connection 10 310 5058 1031050585 x 8 mm
 10 310 5060 1031050606.5 x 10 mm
 10 310 5062 1031050628 x 12 mm
 10 310 5063 1031050639.5 x 13.5 mm
 10 310 5066 10310506611 x 16 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: 5.3 mm (7/32")
Air flow: 950 l/min (33.5 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: Atlas Copco QIC8, Parker Rectus 23/24, Parker Tema 1400/1423, Prevost ISC06/ISI06, Foster 3003, Oetiker B1, Hansen 3000
Standards: ISO 6150 B, A-A 59439 5.3 mm
Markets: Benelux, France, North America, Norway

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 310 eSafe, DN 5.3 Flow, l/min. (CFM)

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