Pneumatic Products, eSafe Couplings & Nipples

Series 291 eSafe, DN 5.5

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


Series 291 eSafe couplings offer high flow and require only a low connection force, which ensures a safe working environment. 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. A fully automatic operation ensures quick and easy handling. eSafe complies with ISO Standard 4414.


eSafe vented safety coupling Part No. Connection
Hose connection 10 291 2002 1029120026.3 mm (1/4")
 10 291 2003 1029120038 mm (5/16")
 10 291 2004 10291200410 mm (3/8")
 10 291 2005 10291200513 mm (1/2")
Male thread 10 291 2152 102912152R 1/4"
 10 291 2154 102912154R 3/8"
 10 291 2155 102912155R 1/2"
Female thread 10 291 2202 102912202G 1/4"
 10 291 2204 102912204G 3/8"
 10 291 2205 102912205G 1/2"
Stream-Line connection 10 291 2058 1029120585 x 8 mm
 10 291 2060 1029120606.5 x 10 mm
 10 291 2062 1029120628 x 12 mm


Nipples Part No. Connection
Hose connection 10 291 5032 1029150326.3 mm (1/4")
 10 291 5033 1029150338 mm (5/16")
 10 291 5034 10291503410 mm (3/8")
Male thread 10 291 5131 102915131R 1/8"
 10 291 5132 102915132R 1/4"
 10 291 5134 102915134R 3/8"
Female thread 10 291 5231 102915231G 1/8"
 10 291 5232 102915232G 1/4"
 10 291 5234 102915234G 3/8"
Stream-Line connection 10 291 5070 1029150706.5 x 10 mm
 10 291 5072 1029150728 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.
Technical data
Nominal flow diameter: 5.5 mm (7/32"")
Air flow: 1090 l/min (38.5 CFM)
Max. working pressure: 12 bar (174 PSI)
Min. burst pressure: 48 bar (696 PSI)
Connection force: 87 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 18, Prevost CSI06, Stäubli RSI06
Standards: ISO 6150 C
Markets: France, Switzerland

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 291 eSafe, DN 5.5 Flow, l/min. (CFM)

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