HIGH- PRESSURE LINE LOW- FLOW PUMP 1. This question uses the tube design concepts. We have seen this circuit as follows. The pressure relief valve setting is 11644 kPa. Let's assume that the circuit uses the same size of the tube everywhere. The flow rate of the high pressure, low volume pump is 0.001 m/s. The maximum speed for the tube is 6.1m/s. The strength of the tube is 379 MPa. Please decide the tube size of this circuit. AME LOW-PRESSURE LINE Flood PRESSURE RELIEF VALVE UNLOADING VALVE HIGH- FLOW PUMP (DELIVERS NO FLOW TO EXTENDING CYCLINDER WHEN "HIGH PRESSURE" EXISTS IN HIGH-PRESSURE LINE DUE TO PUNCHING OPERATION) Tube OD (mm) 4668 00 00 8 8 10 10 10 12 ! 12 12 Wall Thickness (mm) 0.5 1.0 1.5 1.0 1.5 2.0 1.0 1.5 2.0 1.0 1.5 2.0 Tube Tube ID OD (mm) (mm) 343654860980 10 455668222222 14 15 15 16 16 18 20 20 20 Wall Thickness (mm) 2.0 1.5 7 2.0 2.0 3.0 1.5 2.0 2.5 3.0 1.0 1.5 2.0 Tube ID (mm) 10 12 11 12 10 15 16 15 14 20 19 18 Tube OD (mm) 25 25 28 28 30 30 35 35 38 38 42 42 Wall Thickness (mm) 3.0 4.0 2.0 2.5 3.0 4.0 2.0 3.0 4.0 5.0 2.0 3.0 Tube ID (mm) 19 17 24 23 24 22 31 29 30 28 38 36