Page 273 - Irrigation Catalogue 2021 Bevo DK

NORMAL GAS PIPES MULTIPLICATION FACTOR a) for rubber hose 1.5 à 1.6 b) copper pipe 0.9 c) aluminium pipe 0.9 d) PVC 0.85 COUPLINGS PRESSURE LOSS GRAPH v=0,5m/sec. v=1m/sec. v=1,5m/sec. v=2,5m/sec. v=2m/sec. v=3m/sec. 250 225 200 300 275 167 6” 150 130-5” 116 4” 100 400 350 3,5” 90 83 80-3” 70 2,5”-69 60 58 2” 50 46 1,5” 40 1,25” 30 28 1” 25 0,75” 20 0,25” 10 5 4 3 2 0,5 0,4 0,3 10 20 30 40 50 100 200 300 400 500 1000 2000 3000 4000 5000 10.000 16.000 l/min. 1 Quantity of water 3 6 12 18 24 30 60 120 180 240 300 600 m3/hour Pressure loss in metres per 100 metres pipe length IRRIGATION CATALOGUE 271 5