CEJN quick couplings for compressed air provide high flow capacity and secure connections for demanding industrial applications. Available in multiple profiles and diameters (up to 11 mm), they withstand pressures up to 16 bar and temperatures from -30°C to +100°C. Fast connection, durability, and compatibility with international standards ensure reliable performance in harsh working environments.
Quick couplings for compressed air – standard product range
CEJN standard-line quick couplings for compressed air are designed to deliver superior safety and performance in pneumatic applications. Engineered for industries requiring fast and reliable connections, these couplings provide high flow capacity and efficient air transfer, minimizing pressure losses and maximizing productivity. Featuring a durable and user-friendly design, they withstand intensive operation while maintaining system integrity, making them ideal for industrial and automotive environments. In addition, the range is compatible with a wide variety of connection standards and accessories, providing excellent versatility for different applications and working conditions.
| Model | Nominal flow diameter | Air flow | Maximum working pressure | Minimum burst pressure | Temperature | Coupling material | Nozzle material | Connection strength | Standards |
|---|---|---|---|---|---|---|---|---|---|
| Série 141 | 2.5 mm (3/32″) | 86 l/min (3.0 CFM) | 10 bar (145 PSI) | 40 bar (580 PSI) | -30°C – +100°C (-22°F – +212°F) | Chrome-plated brass | Chrome-plated brass | 65 N | CEJN Original 2.5mm |
| Série 220 | 5.0 mm (3/16″) | 580 l/min (20.5 CFM) | 35 bar (507 PSI) | 35 bar (507 PSI) | -30°C – +100°C (-22°F – +212°F) | Nickel-plated brass | Zinc-plated hardened steel | 92 N | CEJN Original Standard |
| Série 223 | 5.0 mm (3/32″) | 535 l/min (18.9 CFM) | 15 bar (217 PSI) | 60 bar (870 PSI) | -20°C – +70°C (-4°F – +158°F) | Nickel-plated brass | Nickel-plated brass | 63.7 N | Eurostandard 5mm |
| Série 300 | 5.5 mm (7/32″) | 1050 l/min (37.1 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +70°C (-4°F – +158°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 70.7 N | ARO 210 Standard, 5.5mm |
| Série 303 | .5 mm (1/4″) | 1450 l/min (51.2 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +70°C (-4°F – +158°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 85 N | Scandinavian profile, 6.5 mm |
| Série 310 | 5.3 mm (7/32″) | 925 l/min (32.7 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +70°C (-4°F – +158°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 70.7 N | ISO 6150 B, A-A 59439 5.3 mm |
| Série 315 | 7.5 mm (5/16″) | 1950 l/min (68.8 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +70°C (-4°F – +158°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 73.5 N | Asian Standard, 7.5mm |
| Série 320 | 7.6 mm (5/16″) | 2100 l/min (74.1 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +70°C (-4°F – +158°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 70.7 N | CEJN Original, Eurostandard 7.6 (7.4) |
| Série 326 | 6,2 mm (1/4″) | 725 l/min (25.6 CFM) | 70 bar (1015 PSI) | 280 bar (4061 PSI) | -15°C – +100°C (5°F – +212°F) | Stainless steel (AISI 316) | Stainless steel (AISI 316) | 102 N | CEJN Original, Eurostandard, 7.4 mm |
| Série 331 | 7 mm (9/32″) | 1600 l/min (56.5 CFM) | 16 bar (232 PSI) | 64 bar (928 PSI) | -30°C – +100°C (-22°F – +212°F) | Zinc-plated steel | Zinc-plated hardened steel | 65 N | AC Q10, 7 mm |
| Série 408 | 9.5 mm (3/8″) | 3450 l/min (121.8 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +100°C (-4°F – +212°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 160 N | Scandinavian profile, 9.5 mm |
| Série 410 | 10.4 mm (13/32″) | 3900 l/min (137.7 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +100°C (-4°F – +212°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 105.2 N | CEJN Original, Eurostandard 10.4 |
| Série 421 | 10 mm (13/32″) | 3200 l/min (113.0 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +100°C (-4°F – +212°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 160 N | AC Q15, 10 mm |
| Série 430 | 8.2 mm (5/16″) | 2350 l/min (83.0 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +100°C (-4°F – +212°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 110.8 N | ISO 6150 B, A-A-59439, 8.2 mm |
| Série 550 | 11 mm (7/16″) | 3750 l/min (132.4 CFM) | 16 bar (232 PSI) | 140 bar (2030 PSI) | -20°C – +100°C (-4°F – +212°F) | Zinc-plated steel/brass | Zinc-plated hardened steel | 145 N | ISO 6150 B, A-A-59439, 11 mm |
