The 300 series couplings offer heavy flow and only require a low connection force, providing a safer working environment. External threads on the couplings and nipples pre-treated with thread sealing. Technical data Nominal flow diameter: 5.5 mm (7/32") Airflow (l/min): 1050 l/min (37.1 CFM) Max. working pressure: 16 bar (230 PSI) Min. burst pressure: 140 bar (2030 PSI) Connecting Force (N): 70.7 N Temperature range: -20°C — +100°C (-4°F — +212°F) Material coupling: Galvanized steel/brass Nipple material: Hardened galvanized steel Switchable with: Rectus 14/22, Prevost ASI06, Hansen 210, Orion 44150/44515. The flow capacity is measured at the input pressure of 6 bar and the pressure drop at 0.5 bar.