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Series 344

  • One-hand operated to connect
  • Automatic safety locking feature
  • Extremely high flow capacity
  • Light weight

 

Series 344 is specially designed for applications with low-weight requirements. The shorter design of the coupling gives it a significantly lower weight than other couplings with the same performance. Series 344 is recommended primarily for breathing air firefighting applications, but is also well suited for diving equipment. Its specially designed valve provides an extremely high rate of airflow. Like most other CEJN breathing air couplings, this series offers one-hand-operated connection, an integrated safety feature that guards against unintentional disconnection, a grip-friendly locking sleeve, and a broad connection range.

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Technical data:

Technical data

Nominal flow diameter 7.4 mm (0.3″)
Air flow 1950 l/min (68.8 CFM)
Max. working pressure 35 bar (507 PSI)
Min. burst pressure 140 bar (2030 PSI)
Temperature range -30°C — +100°C (-22°F — +212°F)
Material coupling Nickel-plated brass
Material nipple Nickel-plated brass
Material seal NBR

Flow capacity is measured at 6 bar (87 PSI) inlet pressure, and pressure drop at 0.5 bar (7 PSI).

Couplings Part No. Connection Length Diameter Hexagon
Hose connection 10 344 1002 6.3 mm (1/4″) 64.1 24.4 19
10 344 1003 7.0 mm 67.6 24.4 20
10 344 1004 10.0 mm (3/8″) 67.1 24.4 19
Male thread 10 344 1152 R 1/4″ 60.1 24.4 20
10 344 1154 R 3/8″ 58.1 24.4 20
10 344 1155 R 1/2″ 53 25.4 22
10 344 1288 G 1/4″ 55.6 24.4 20
10 344 1294 G 3/8″ 53.6 24.4 20
10 344 1452 1/4″ NPT 59.1 24.4 20
10 344 1454 3/8″ NPT 57.1 24.4 20
Female thread 10 344 1202 G 1/4″ 54.1 24.4 20
10 344 1204 G 3/8″ 57.1 24.4 20
10 344 1402 1/4″ NPT 56.1 24.4 20
10 344 1404 3/8″ NPT 56.1 25.4 22
Nipples Part No. Connection Length Diameter Hexagon
Hose connection 10 344 5022 7.0 mm 46 13
10 344 5023 7.0 mm 46 13
Male thread 10 344 5252 G 1/4″ 38 19.6 17
10 344 5452 1/4″ NPT 38.5 19.6 17
Female thread 10 344 5202 G 1/4″ 36.5 19.6 17
10 344 5204 G 3/8″ 38.5 23.1 20