HHE 2022-2023

648 Twelve SELECTING THE RIGHT PIPE Working Pressure Aluminium Pipe Nylon Pipe kPa (bar) 15 mm 22 mm 28 mm 35 mm 42 mm 54 mm 10 mm 15 mm 22 mm 28 mm 20 0.20 0.86 l/s 2.11 l/s 3.57 l/s 9.81 l/s 15.0 l/s 28.0 l/s 0.33 l/s 0.79 l/s 2.0 l/s 2.9 l/s 40 0.40 1.32 l/s 3.27 l/s 5.49 l/s 10.2 l/s 17.0 l/s 43.0 l/s 0.51 l/s 1.21 l/s 3.0 l/s 4.5 l/s 63 0.63 1.80 l/s 4.38 l/s 7.39 l/s 13.7 l/s 22.9 l/s 59.0 l/s 0.69 l/s 1.64 l/s 4.1 l/s 6.0 l/s 80 0.80 2.08 l/s 5.19 l/s 8.91 l/s 16.5 l/s 27.4 l/s 70.0 l/s 0.81 l/s 1.90 l/s 4.8 l/s 7.2 l/s 100 1.00 2.46 l/s 6.14 l/s 10.43 l/s 19.3 l/s 32.0 l/s 82.0 l/s 0.97 l/s 2.25 l/s 5.7 l/s 8.4 l/s 125 1.25 2.93 l/s 7.25 l/s 12.05 l/s 22.4 l/s 37.9 l/s 97.0 l/s 1.14 l/s 2.68 l/s 6.7 l/s 9.8 l/s 160 1.60 3.59 l/s 8.55 l/s 14.67 l/s 27.5 l/s 46.0 l/s 120.0 l/s 1.38 l/s 3.28 l/s 8.0 l/s 11.7 l/s 200 2.00 4.25 l/s 10.78 l/s 18.13 l/s 33.0 l/s 55.4 l/s 140.0 l/s 1.64 l/s 3.88 l/s 9.9 l/s 14.8 l/s 250 2.50 5.20 l/s 12.58 l/s 21.53 l/s 39.9 l/s 66.9 l/s 170.0 l/s 2.03 l/s 4.75 l/s 11.7 l/s 17.3 l/s 315 3.15 6.33 l/s 15.62 l/s 26.47 l/s 48.5 l/s 82.1 l/s 210.0 l/s 2.43 l/s 5.78 l/s 14.3 l/s 21.7 l/s 400 4.00 7.84 l/s 19.13 l/s 32.33 l/s 59.9 l/s 100.0 l/s 260.0 l/s 3.00 l/s 7.15 l/s 17.7 l/s 26.3 l/s 500 5.00 9.46 l/s 23.65 l/s 39.67 l/s 74.4 l/s 124.3 l/s 320.0 l/s 3.73 l/s 8.65 l/s 22.0 l/s 32.2 l/s 630 6.30 12.26 l/s 29.20 l/s 49.47 l/s 90.0 l/s 150.0 l/s 390.0 l/s 4.57 l/s 11.15 l/s 27.0 l/s 40.2 l/s 800 8.00 15.10 l/s 36.75 l/s 61.73 l/s 115.0 l/s 192.9 l/s 490.0 l/s 5.70 l/s 13.75 l/s 34.0 l/s 50.3 l/s 1000 10.00 17.97 l/s 45.30 l/s 75.47 l/s 141.3 l/s 238.6 l/s 610.0 l/s 7.10 l/s 16.43 l/s 42.0 l/s 61.7 l/s 1250 12.50 22.60 l/s 56.37 l/s 96.40 l/s 178.8 l/s 297.1 l/s 750.0 l/s 8.27 l/s 20.50 l/s 52.3 l/s 77.5 l/s 1600 16.00 29.20 l/s 71.47 l/s 120.00 l/s 223.8 l/s 375.7 l/s 950.0 l/s 10.70 l/s 26.50 l/s 66.3 l/s 97.5 l/s Note: The flow rates are based on 10% pressure drops for 10 and 15 mm pipe sizes and 5% for 22, 28, 35, 42 and 54 mm pipe sizes Diameter Temperature Rigid Nylon Pipe Powder Coated Aluminium Pipe Copper Pipe LLDPE Pipe 4 mm -20°C N/A N/A N/A 10 bar 23°C N/A N/A N/A 10 bar 65°C N/A N/A N/A 7 bar 6 mm -20°C N/A N/A N/A 10 bar 23°C N/A N/A N/A 10 bar 65°C N/A N/A N/A 7 bar 8 mm -20°C N/A N/A N/A 10 bar 23°C N/A N/A N/A 10 bar 65°C N/A N/A N/A 7 bar 10 mm -20°C N/A N/A N/A 10 bar 23°C N/A N/A N/A 10 bar 65°C N/A N/A N/A 7 bar 12 mm -20°C 10 bar N/A N/A 10 bar 23°C 10 bar N/A N/A 10 bar 65°C 7 bar N/A N/A 7 bar 15 mm -20°C 10 bar 10 bar 10 bar 10 bar 23°C 10 bar 10 bar 10 bar 10 bar 65°C 7 bar 7 bar 7 bar 7 bar 18 mm -20°C 10 bar 10 bar N/A N/A 23°C 10 bar 10 bar N/A N/A 65°C 7 bar 7 bar N/A N/A 22 mm -20°C 10 bar 10 bar 10 bar N/A 23°C 10 bar 10 bar 10 bar N/A 65°C 7 bar 7 bar 7 bar N/A 28 mm -20°C 10 bar 10 bar 10 bar N/A 23°C 10 bar 10 bar 10 bar N/A 65°C 7 bar 7 bar 7 bar N/A Note: The above pressures and temperatures are in relation to John Guest Air fittings when used with the pipe materials listed Pipe flow rates Maximum recommended flow rates according to ISO 4414 John Guest Air working pressures and temperatures when used with the following pipe materials SELECT THE PIPE AND DIAMETER FOR YOUR APPLICATION BASED ON THE REQUIRED FLOW AGAINST PRESSURE DROP