Pneumatic Products, eSafe Couplings & Nipples

Series 550 eSafe, DN 11

  • Vented safety function
  • One hand operated
  • Extremely high-flow capacity


eSafe Series 550 is a safety coupling that features an easy-to-grip design with a fully automatic function. They are smaller, much more compact and generate higher flow than comparable designs. eSafe is a one hand operated safety coupling that vents before disconnection, eliminating the risk of hose whip. The eSafe version complies with ISO Standard 4414 and EN 983.


Couplings Part No. Connection
Hose connection 10 550 2004 10550200410 mm (3/8")
 10 550 2005 10550200512 mm (1/2")
 10 550 2007 10550200719 mm (3/4")
Male thread 10 550 2154 105502154R 3/8"
 10 550 2155 105502155R 1/2"
 10 550 2157 105502157R 3/4"
 10 550 2454 105502454NPT 3/8"
 10 550 2455 105502455NPT 1/2"
 10 550 2457 105502457NPT 3/4"
Female thread 10 550 2204 105502204G 3/8"
 10 550 2205 105502205G 1/2"
 10 550 2207 105502207G 3/4"
 10 550 2404 105502404NPT 3/8"
 10 550 2405 105502405NPT 1/2"
 10 550 2407 105502407NPT 3/4"


eSafe vented safety coupling Part No. Connection
Hose connection 10 550 2045 1055020451/2" Cejn - Lock
Stream-Line connection 10 550 2066 10550206611 x 16 mm
 10 550 2068 10550206813 x 18 mm


Nipples Part No. Connection
Hose connection 10 550 5004 10550500410 mm (3/8")
 10 550 5005 10550500513 mm (1/2")
 10 550 5007 10550500719 mm (3/4")
 10 550 5045 1055050451/2" Cejn Lock
Male thread 10 550 5152 105505152R 1/4"
 10 550 5154 105505154R 3/8"
 10 550 5155 105505155R 1/2"
 10 550 5157 105505157R 3/4"
 10 550 5452 105505452NPT 1/4"
 10 550 5454 105505454NPT 3/8"
 10 550 5455 105505455NPT 1/2"
 10 550 5457 105505457NPT 3/4"
Female thread 10 550 5204 105505204G 3/8"
 10 550 5205 105505205G 1/2"
 10 550 5404 105505404NPT 3/8"
 10 550 5405 105505405NPT 1/2"
 10 550 5407 105505407NPT 3/4"
Stream-Line connection 10 550 5066 10550506611 x 16 mm
 10 550 5068 10550506813 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: 11 mm (7/16")
Air flow: 4050 l/min (143.0 CFM)
Max. working pressure: 16 bar (232 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Connection force: 152 N
Temperature range: -20°C — +100°C (-4°F — +212°F)
Material coupling: Zinc-plated steel/brass
Material nipple: Hardened zinc-plated steel
Standards: ISO 6150 B, A-A-59439 11 mm
Markets: France, North America, Norway

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

Air Flow
Pressure drop, PSI (bar) Series 550 eSafe, DN 11 Flow, CFM (l/min)

Available files for download

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