Pneumatic Products, eSafe Couplings & Nipples

Series 315 eSafe, DN 7.5

  • Vented safety function
  • Extremely high flow capacity
  • Strong and durable

eSafe Series 315 couplings are lightweight and easy to handle yet strong and durable. It is a one hand operated safety coupling that vents before disconnection eliminating the risk of hose whip. The Series includes a wide range of connections. Male threads on the couplings and nipples feature pre-applied thread sealant. Full automatic operation ensures easy handling. eSafe complies with ISO Standard 4414 and EN 983.


Series 315 is also available in standard, Soft-Line and Multi-Link versions.

Series 315 eSafe, DN 7.5
Technical data
Nominal flow diameter: 7.5 mm (5/16")
Air flow: 1950 l/min (68.8 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: Nitto Kohki 20/30/40, Daisen 23 SF/SOF, Parker Rectus 13, Prevost OSG/ORG 08, Hansen CHS 03 F
Standards: Asian standard, 7.5 mm
Markets: Asia, Australia, Italy, Sourth America

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 315 eSafe, DN 7.5
Flow, l/min. (CFM)
eSafe vented safety coupling Part No. Connection
Hose connection 10 315 20021031520026.3 mm (1/4")
 10 315 20431031520437 mm (9/32")
 10 315 200410315200410 mm (3/8")
 10 315 200510315200513 mm (1/2")
Male thread 10 315 2152103152152R 1/4"
 10 315 2154103152154R 3/8"
 10 315 2155103152155R 1/2"
 10 315 2452103152452NPT 1/4"
 10 315 2454103152454NPT 3/8"
 10 315 2455103152455NPT 1/2"
Female thread 10 315 2102103152102Rc 1/4"
 10 315 2104103152104Rc 3/8"
 10 315 2105103152105Rc 1/2"
 10 315 2202103152202G 1/4"
 10 315 2204103152204G 3/8"
 10 315 2402103152402NPT 1/4"
 10 315 2404103152404NPT 3/8"
 10 315 2405103152405NPT 1/2"
Stream-Line connection 10 315 20581031520585 x 8 mm
 10 315 20601031520606.5 x 10 mm
 10 315 20621031520628 x 12 mm
 10 315 20631031520639.5 x 13.5 mm
 10 315 206610315206611 x 16 mm


eSafe Soft-Line coupling Part No. Connection
Stream-Line connection 10 315 20801031520806.5 x 10 mm
 10 315 20821031520828 x 12 mm


Nipples Part No. Connection
Hose connection 10 315 50011031550015 mm (3/16")
 10 315 50021031550026.3 mm (1/4")
 10 315 50431031550437 mm (9/32")
 10 315 500410315500410 mm (3/8")
 10 315 500510315500513 mm (1/2")
Male thread 10 315 5151103155151R 1/8"
 10 315 5152103155152R 1/4"
 10 315 5154103155154R 3/8"
 10 315 5155103155155R 1/2"
 10 315 5452103155452NPT 1/4"
 10 315 5454103155454NPT 3/8"
 10 315 5455103155455NPT 1/2"
Female thread 10 315 5101103155101Rc 1/8"
 10 315 5102103155102Rc 1/4"
 10 315 5104103155104Rc 3/8"
 10 315 5105103155105Rc 1/2"
 10 315 5402103155402NPT 1/4"
 10 315 5404103155404NPT 3/8"
 10 315 5405103155405NPT 1/2"
Stream-Line connection 10 315 50581031550585 x 8 mm
 10 315 50601031550606.5 x 10 mm
 10 315 50621031550628 x 12 mm
 10 315 50631031550639.5 x 13.5 mm
 10 315 506610315506611 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.

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