Heavy-duty tubing PAN-R-4X0,75-SI standard O.D. tubing, for high pressures up to 20 bar, can withstand high thermal and mechanical loads. Outside diameter=4 mm, Bending radius relevant for flow rate=16 mm, Inside diameter=2,5 mm, Min. bending radius=10 mm, Tubing characteristics=Suitable for energy chains in applications with high cycle rates