Pneumatic Products, Standard Couplings & Nipples

Series 550, DN 11

  • Strong and durable
  • Low connection force
  • One-hand operated

Series 550 couplings feature an easy-to-grip design and require only a low connection force. They are smaller and more compact and generate higher flows than comparable designs. Series 550 couplings have an extremely low noise level upon disconnection. The Series includes anti-hose whip nipples. The Series 550 eSafe is disconnected in two stages in order to vent the coupling and minimize the risk of sudden component separation, which has the potential to cause operator injury. The one-handed operation ensures easy handling. The eSafe version complies with ISO Standard 4414 and EN 983.


Series 550 is also available in a Vented Safety version.

Series 550, DN 11
Technical data
Nominal flow diameter: 11 mm (7/16")
Air flow: 3750 l/min (132.4 CFM)
Max. working pressure: 16 bar (232 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Connection force: 145 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 17, Prevost IRM11, Foster 5205, Hansen 5000
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, DN 11
Flow, l/min. (CFM)
Couplings Part No. Connection
Hose connection 10 550 100410550100410 mm (3/8")
 10 550 100510550100513 mm (1/2")
 10 550 100710550100719 mm (3/4")
Male thread 10 550 1154105501154R 3/8"
 10 550 1155105501155R 1/2"
 10 550 1157105501157R 3/4"
 10 550 1454105501454NPT 3/8"
 10 550 1455105501455NPT 1/2"
 10 550 1457105501457NPT 3/4"
Female thread 10 550 1204105501204G 3/8"
 10 550 1205105501205G 1/2"
 10 550 1207105501207G 3/4"
 10 550 1404105501404NPT 3/8"
 10 550 1405105501405NPT 1/2"
 10 550 1407105501407NPT 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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