5 l/min 10 l/min 20 l/min 30 l/min 40 l/min 50 l/min 60 l/min 70 l/min cSt [kW/(l/min)] 5 10 20 30 40 50 60 70 100 cSt 100 0.0013 0.007 0.013 0.026 0.039 0.052 0.065 0.078 0.091 220 cSt 220 0.0029 0.015 0.029 0.058 0.087 0.116 0.145 0.175 0.204 320 cSt 320 0.0043 0.021 0.043 0.086 0.128 0.171 0.214 0.257 0.300 460 cSt 460 0.0063 0.031 0.063 0.125 0.188 0.250 0.313 0.376 0.438 680 cSt 680 0.0095 0.047 0.095 0.190 0.285 0.380 0.475 0.570 0.664 1000 cSt 1000 0.0145 0.072 0.145 0.289 0.434 0.579 0.724 0.868 1.013 1500 cSt 1500 0.0229 0.115 0.229 0.458 0.687 0.917 1.146 1.375 1.604 2000 cSt 2000 0.0322 0.161 0.322 0.643 0.965 1.286 1.608 1.930 2.251 Viscosity Fv Q(l/m) High Viscosity Absorption Calculation Low Noise, Low Pulsation FTP Gear Pump FTP Viscosity Absorption 15 www.jbj.co.uk/FTP-gear-pumps.html #DriveLineHarmony P cSt = P + Fv*Q Fv = Viscosity Factor [kW/(l/min)] P cSt = P + Pv P = Absorbed power @ normal viscosity P =(Q*DP)/(600*htot) Pv = Pv(Q,n) Increase in absorbed power at high viscosity (tables) 80 l/min 90 l/min 100 l/min 110 l/min 120 l/min 130 l/min 140 l/min 150 l/min cSt [kW/(l/min)] 80 90 100 110 120 130 140 150 100 cSt 100 0.0013 0.104 0.117 0.130 0.143 0.156 0.169 0.182 0.195 220 cSt 220 0.0029 0.233 0.262 0.291 0.320 0.349 0.378 0.407 0.436 320 cSt 320 0.0043 0.343 0.385 0.428 0.471 0.514 0.557 0.599 0.642 460 cSt 460 0.0063 0.501 0.563 0.626 0.688 0.751 0.814 0.876 0.939 680 cSt 680 0.0095 0.759 0.854 0.949 1.044 1.139 1.234 1.329 1.424 1000 cSt 1000 0.0145 1.158 1.303 1.447 1.592 1.737 1.882 2.026 2.171 1500 cSt 1500 0.0229 1.833 2.062 2.292 2.521 2.750 2.979 3.208 3.437 2000 cSt 2000 0.0322 2.573 2.895 3.216 3.538 3.859 4.181 4.503 4.824 Viscosity Fv Q(l/m)
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