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CEJN / Series 342


Description   Photograph
35 bar (508 PSI) – 1950 l/min (69 CFM)   CEJN / Series 342
Coupling CategoryManufacturer 
Quick Connect Couplings for Breathing Air Applications CEJN 

A hardened steel locking sleeve and nipple make Series 342 well-suited for breathing air applications in demanding industrial environments. Its special valve design provides an extremely high rate of airflow. Like most CEJN breathing air couplings, Series 342 offers one-hand-operated connection, an integrated safety feature that guards against unintentional disconnection, a grip friendly locking sleeve, and a broad connection range.

Technical Data
Material: Nickel-plated brass, zinc-plated locking sleeve and nipple of hardened steel
Seal material: NBR
Airflow at inlet pressure of 6 bar (87 PSI) and pressure drop 0.5 bar (7 PSI): 1950 l/min (69 CFM)
Max. working pressure: 35 bar (508 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Temperature range: -30°C to +100°C (-22º to + 212ºF)
Nominal flow diameter: 7.4 mm (9/32")

Couplings: Compatible with Series 341 and 346 nipples
Nipples: Compatible with Series 341, 344, 345, and 346 couplings


Couplings Part No. Description Length Diameter Spanner Size
Hose Connection 10 342 1002 6.3 mm (1/4") 68.7 24.4 19
10 342 1003 8.0 mm (5/16") 71.2 24.4 19
10 342 1004 10.0 mm (3/8") 71.7 24.4 19
10 342 1005 13.0 mm (1/2") 69.7 24.4 19
Male Thread 10 342 1152 R 1/4" 64.7 24.4 20
10 342 1154 R 3/8" 62 .7 24.4 20
10 342 1155 R 1/2 " 57.2 25.4 22
10 342 1452 NPT 1/4" 63.7 24.4 20
10 342 1454 NPT 3/8" 61.7 24.4 20
10 342 1455 NPT 1/2" 56.2 25.4 22
Female Thread 10 342 1202 G 1/4" 58.7 24.4 20
10 342 1204 G 3/8" 61.7 24.4 20
10 342 1205 G 1/2" 61.2 28.9 25
10 342 1402 NPT 1/4" 60.7 24.4 20
10 342 1404 NPT 3/8" 60.7 25.4 22
Stream-Line 10 342 1060 6.5 x 10.0 mm 65.7 24.4 20/16
10 342 1062 8.0 x 12.0 mm 68.7 24.4 20/19


Nipples Part No. Description Length Diameter Spanner Size
Hose Connection 10 342 5002 6.3 mm (1/4") 47.0 13.0 -
10 342 5004 10.0 mm (3/8") 49.5 14.0 -
10 342 5005 13.0 mm (1/2") 50.0 17.0 -
Male Thread 10 342 5152 R 1/4" 46.0 16.2 14
10 342 5154 R 3/8 46.0 19.6 17
10 342 5155 R 1/2" 52.0 25.4 22
10 342 5452 NPT 1/4" 42.7 16.2 14
10 342 5454 NPT 3/8" 43.7 19.6 17
Female Thread 10 342 5202 G 1/4" 42.0 19.6 17
10 342 5204 G 3/8" 43.2 23.1 20
10 342 5205 G 1/2" 47.7 27.7 24
10 342 5402 NPT 1/4" 41.5 19.6 17
10 342 5404 NPT 3/8" 43.2 23.1 20
10 342 5405 NPT 1/2" 45.5 31.2 27
Stream-Line 10 342 5060 6.5 x 10.0 mm 49.0 18.5 16/16
10 342 5062 8.0 x 12.0 mm 52.0 21.9 19/19

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