Technical description Metric plastic tubes with thumb dimensions for pneumatic brake systems. Replaces steel pipes. The pipes are bent by hand during assembly. No corrosion. Minimal waste as the tubes are pulled through the trolley directly from the roller. Supplied according to DIN 74324 in black polyamide, nylon PA12. Suitable plug-in couplings are series-28,29 and 68, or clamping couplings series-20 or series-62 in combination with loose insertion sleeves series-3601. Material Polyamide 12 Working pressure The maximum recommended working pressure is 10 bar. Temperature range -40 - +90°C