Pneumatic Products, Standard Couplings & Nipples

Series 310, DN 5.3

  • High flow capacity
  • One-hand operated
  • Low connection force

Series 310 offers a wide range of easy-to-grip couplings, including Soft-Line, Stream-Line, and Multi-Link couplings. Male threads on the couplings and nipples feature pre-applied thread sealant. The Series eSafe 310 version 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 310 is available in eSafe, Soft-Line and Multi-Link versions.

Series 310, DN 5.3
Technical data
Nominal flow diameter: 5.3 mm (7/32")
Air flow: 925 l/min (32.7 CFM)
Max. working pressure: 16 bar (232 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Connection force: 70.7 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: Atlas Copco QIC8, Rectus 23/24, Tema 1400/1423, Prevost ISC06/ISI06, Foster 3003, Oetiker B1, Hansen 3000
Standards: ISO 6150 B, A-A 59439 5.3 mm
Markets: Benelux, 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 310, DN 5.3
Flow, l/min. (CFM)
Couplings Part No. Connection
Hose connection 10 310 10021031010026.3 mm (1/4")
 10 310 10031031010038 mm (5/16")
 10 310 100410310100410 mm (3/8")
 10 310 100510310100513 mm (1/2")
Male thread 10 310 1152103101152R 1/4"
 10 310 1154103101154R 3/8"
 10 310 1155103101155R 1/2"
 10 310 1452103101452NPT 1/4"
 10 310 1454103101454NPT 3/8"
 10 310 1455103101455NPT 1/2"
Female thread 10 310 1202103101202G 1/4"
 10 310 1204103101204G 3/8"
 10 310 1205103101205G 1/2"
 10 310 1402103101402NPT 1/4"
 10 310 1404103101404NPT 3/8"
 10 310 1405103101405NPT 1/2"
Stream-Line connection 10 310 10581031010585x8 mm
 10 310 10601031010606.5x10 mm
 10 310 10621031010628x12 mm
 10 310 10631031010639.5x13.5 mm
 10 310 106610310106611x16 mm


Soft-Line couplings Part No. Connection
Stream-Line connection 10 310 10831031010836.5 x 10 mm
 10 310 10841031010848 x 12 mm
Female thread 10 310 1240103101240G 1/4"
 10 310 1241103101241G 3/8"
 10 310 1446103101446NPT 1/4"
 10 310 1447103101447NPT 3/8"


Nipples Part No. Connection
Hose connection 10 310 50011031050015 mm (3/16")
 10 310 50021031050026.3 mm (1/4")
 10 310 50031031050038 mm (5/16")
 10 310 500410310500410 mm (3/8")
 10 310 500510310500513 mm (1/2")
Male thread 10 310 5151103105151R 1/8"
 10 310 5152103105152R 1/4"
 10 310 5154103105154R 3/8"
 10 310 5252103105252G 1/4"
 10 310 5451103105451NPT 1/8"
 10 310 5452103105452NPT 1/4"
 10 310 5454103105454NPT 3/8"
 10 310 5455103105455NPT 1/2"
Female thread 10 310 5201103105201G 1/8"
 10 310 5202103105202G 1/4"
 10 310 5204103105204G 3/8"
 10 310 5401103105401NPT 1/8"
 10 310 5402103105402NPT 1/4"
 10 310 5404103105404NPT 3/8"
Stream-Line connection 10 310 50581031050585 x 8 mm
 10 310 50601031050606.5 x 10 mm
 10 310 50621031050628 x 12 mm
 10 310 50631031050639.5 x 13.5 mm
 10 310 506610310506611 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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