Clark GEX20 - Page 305

Group 30, Hydraulic Control Valve/Lift Circuit
SM 765, Nov ’06 Hydraulic System Pressure Checks and Adjustments • 30-4-3
Flowrate per RPM
GEX 20/25
* The above are only theoretical value.
• Displacement of pump : 22.5 cc/rev
• Volumetric efficiency of pump : 0.95
GEX 30
* The above are only theoretical value.
• Displacement of pump : 19 cc/rev
• Volumetric efficiency of pump : 0.95
RPM Hz
Flowrate
Lift
Speed
Tilt in
velocity
Remark
lpm gpm
mm/
sec
mm/
sec
deg/
sec
500 15 9.7 2.6 82 23.39 3.76
600 18 11.8 3.1 100 28.45 4.57
700 21 14.0 3.7 118 33.76 5.43
800 25 16.1 4.3 137 38.82 6.24
900 28 18.2 4.8 155 43.89 7.05
1000 31 20.4 5.4 173 49.19 7.91
1100 35 22.5 5.9 191 54.26 8.72
1200 38 24.7 6.5 209 59.56 9.57
1300 41 26.8 7.1 227 64.63 10.39
1400 45 28.9 7.6 245 69.69 11.20
1500 48 31.1 8.2 263 75.00 12.05
1600 51 33.2 8.8 282 80.06 12.87
1700 55 35.3 9.3 300 85.12 13.68
1800 58 37.5 9.9 318 90.43 14.53
1900 61 39.6 10.5 336
2000 65 41.8 11.0 354
2100 68 43.9 11.6 372
2200 71 46.0 12.2 390
2300 75 48.2 12.7 408
2400 78 50.3 13.3 427
2500 81 52.4 13.9 445
2600 85 54.6 14.4 463
2700 88 56.7 15.0 481
2800 91 58.9 15.5 499
2900 95 61.0 16.1 517
3000 98 63.1 16.7 535
3100 101 65.3 17.2 553
3200 105 67.4 17.8 572
3300 108 69.5 18.4 590
3400 111 71.7 18.9 608
3500 115 73.8 19.5 626
RPM Hz
Flowrate
Lift
Speed
Tilt in
velocity
Remark
lpm gpm
mm/
sec
mm/
sec
deg/
sec
500 15 8.0 2.1 68 19.29 3.10
600 18 9.8 2.6 83 23.63 3.80
700 21 11.6 3.1 99 27.97 4.50
800 25 13.4 3.6 114 32.31 5.19
900 28 15.2 4.0 129 36.65 5.89
1000 31 17.1 4.5 145 41.24 6.63
1100 35 18.9 5.0 160 45.58 7.32
1200 38 20.7 5.5 175 49.92 8.02
1300 41 22.5 5.9 191 54.26 8.72
1400 45 24.3 6.4 206 58.60 9.42
1500 48 26.1 6.9 221 62.94 10.12
1600 51 27.9 7.4 236 67.28 10.81
1700 55 29.7 7.8 252 71.62 11.51
1800 58 31.5 8.3 267 75.96 12.21
1900 61 33.3 8.8 282 80.30 12.91
2000 65 35.1 9.3 298 84.64 13.60
2100 68 36.9 9.8 313 88.98 14.30
2200 71 38.7 10.2 328
2300 75 40.5 10.7 344
2400 78 42.3 11.2 359
2500 81 44.1 11.7 374
2600 85 45.9 12.1 389
2700 88 47.7 12.6 405
2800 91 49.5 13.1 420
2900 95 47.7 13.6 435
3000 98 53.2 14.0 451
3100 101 55.0 14.5 466
3200 105 56.8 15.0 481
3300 108 58.6 15.5 497
3400 111 60.4 15.9 512
3500 115 62.2 16.4 527