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 feature 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.


Series 550 eSafe, DN 11
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 0.5 bar (7 PSI).

Air Flow
Pressure drop, bar (PSI)
Series 550 eSafe, DN 11
Flow, l/min. (CFM)
eSafe vented safety coupling Part No. Connection
Hose connection 10 550 200410550200410 mm (3/8")
 10 550 200510550200513 mm (1/2")
 10 550 200710550200719 mm (3/4")
Male thread 10 550 2154105502154R 3/8"
 10 550 2155105502155R 1/2"
 10 550 2157105502157R 3/4"
 10 550 2454105502454NPT 3/8"
 10 550 2455105502455NPT 1/2"
 10 550 2457105502457NPT 3/4"
Female thread 10 550 2204105502204G 3/8"
 10 550 2205105502205G 1/2"
 10 550 2207105502207G 3/4"
 10 550 2404105502404NPT 3/8"
 10 550 2405105502405NPT 1/2"
 10 550 2407105502407NPT 3/4"


Nipples Part No. Connection
Hose connection 10 550 500410550500410 mm (3/8")
 10 550 500510550500513 mm (1/2")
 10 550 500710550500719 mm (3/4")
Male thread 10 550 5152105505152R 1/4"
 10 550 5154105505154R 3/8"
 10 550 5155105505155R 1/2"
 10 550 5157105505157R 3/4"
 10 550 5452105505452NPT 1/4"
 10 550 5454105505454NPT 3/8"
 10 550 5455105505455NPT 1/2"
 10 550 5457105505457NPT 3/4"
Female thread 10 550 5204105505204G 3/8"
 10 550 5205105505205G 1/2"
 10 550 5404105505404NPT 3/8"
 10 550 5405105505405NPT 1/2"
 10 550 5407105505407NPT 3/4"


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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