Diamond Catalogus

1191 Aspiration - Ventilation • Aspiratie - Ventilatie • Lüftung - Ventilation 20 300 500 1000 1500 2000 3000 4000 5000 6000 7000 8000 50 100 150 200 250 300 350 400 450 500 550 600 650 10/10/14 12/12/9 12/9/9 9/9/14 9/9/9 10/10/9 7/7/14 Pa m 3 /h-u Selection chart 1000 200 120 40 4 14,4 9,6 1500 250 120 40 3,2 13,3 8,8 2000 250 120 40 5 23,6 15,7 2500 315 120 40 3,2 14,6 9,7 3000 315 120 40 4,2 21 14 3500 355 120 40 3 17,7 11,8 4000 355 120 40 3,6 23,1 15,4 4500 400 120 40 2,5 18,2 12,1 5000 400 120 40 2,9 22,4 14,9 Pressure loss chart Example of pressure loss calculation Debit m3/h* Ø recommanded tube Pressure losse cooker hood Pressure loss casin Pressure loss per m/l Pressure loss curve 90° Pressure loss curve 45° Medium installation (Rinsed filters) Pressure loss for the principal parts of a Pa installation * Refers to m 3 /h of the selected hood Results Calculation Hooder debit 3500 m3 1 Tube Ø 355 mm m/l 15 Casin pressure loss 1 Curve 90° pressure loss 2 Curve 45° pressure loss 1 Data Pressure loss hooder 1x120 120 Pressure loss per m/l 15 mx3 45 Pressure loss casin 1x40 40 Pressure loss curve 90° 2x17,7 35,4 Pressure loss curve 45° 2x11,8 23,6 Total 264 Reserve 10% 26,4 Pressure loss = 290,1 In this case we have selected: Ventilator 3500m3/h till 290,4 Pa