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详细介绍
The series high pressure resistant composition vane pumps with high performance are developed for engineering machinery application,especially for walking machinery. The main features are as follows:
1. Adopt the structure of hydraulic balancing composition vans, making the resistant pressure higher to maximum 21 Mpa.
2. Adopt the structure of floating side plate supporting with its function of automatic tolerance compensation, which helps to get pressure balance and high performance under high rotation speed and high pressure.
3. Adopt bimetal flexible material for side plates, which dramatically improves the engagement performance of the gears and thus makes the pump working better and longer.
Model Number Designation
| (F3-) | 25VQ | 21 | A | (F) | -1 | A | 20 | L |
| Front marks | Code of series | Displacement codes | Pump port connection | Mounting type | Shaft extension | Outlet port position | Designing No. | Direction of rotation |
| No mark: water-in oil emulsion of petroleum series F3:Sul phosuccinic ester fatty of acid | 20VQ | 2,3,4,5,6,7,8,9, 10,11,12,14 | A-SAE 4-bolted Flange | No.marks: Flange mounting F-Foot mounting | 1-straight shaft with key 151-spline shaft | (from cover end pump) A-Opposition of inletB- counterclockwise 90° from inlet C-the same side of inlet D-Clockwise 90° from inlet | 30 | (from shaft end pump) L-counterclockwise rotation No marks: Clockwise rotation |
| 25VQ | 10,12,14,15,17, 19,21 | 1-straight shaft with key 86-heavy-duty straight shaft wirh key 11-spline shaft | 20 | |||||
| 35VQ | 21,25,30,32,35, 38,45 | |||||||
| 45VQ | 42,45,50,57,60, 66,75 | |||||||
| The rated displacement (USgpm) is under the conditions of 1200r/min and 0.69 Mpa(100psi). |
Specifications
| Models | Displacement code | Geometric displacement (ml/r) | Max speed (r/min) | Max pressure (Mpa) | Typical outlet flow (L/min) under Max speed and Max pressure | Typical outlet power (KW) under Max speed and Max pressure | Weight |
| 20VQ | 2 | 7 | 2700 | 21 | 16.4 | 7.2 | 11.8 |
| 3 | 11.7 | 2700 | 21 | 24.4 | 10.8 | ||
| 4 | 15 | 2700 | 21 | 32.7 | 14.4 | ||
| 5 | 18 | 2700 | 21 | 42.3 | 17.9 | ||
| 6 | 19 | 2700 | 21 | 50.6 | 21.5 | ||
| 7 | 22 | 2700 | 21 | 58.8 | 23.7 | ||
| 8 | 27 | 2700 | 21 | 56.4 | 25.1 | ||
| 9 | 30 | 2700 | 21 | 73.4 | 26.0 | ||
| 10 | 31.5 | 2700 | 21 | 81.7 | 26.8 | ||
| 11 | 36 | 2700 | 21 | 88.5 | 27.7 | ||
| 12 | 40 | 2700 | 16 | 96.5 | 28.4 | ||
| 14 | 45 | 2700 | 14 | 115.4 | 29.1 | ||
| 25VQ | 10 | 32.5 | 2700 | 21 | 81.4 | 35.2 | 14.5 |
| 12 | 38.3 | 2700 | 21 | 88.5 | 41.0 | ||
| 14 | 43.3 | 2700 | 21 | 103.8 | 46.6 | ||
| 15 | 47.3 | 2500 | 21 | 109.4 | 48.1 | ||
| 17 | 52.5 | 2500 | 21 | 119.2 | 51.8 | ||
| 19 | 60 | 2500 | 21 | 133.5 | 55.2 | ||
| 21 | 65.0 | 2500 | 21 | 146.2 | 61.9 | ||
| 35VQ | 21 | 64.0 | 2500 | 21 | 145.5 | 63.7 | 22.7 |
| 25 | 79.2 | 2500 | 21 | 173.1 | 75.3 | ||
| 30 | 95.0 | 2500 | 21 | 211.5 | 87.7 | ||
| 32 | 101 | 2500 | 21 | 220.2 | 92.2 | ||
| 35 | 109 | 2400 | 21 | 230.8 | 98.5 | ||
| 38 | 118 | 2400 | 21 | 250 | 104.4 | ||
| 45 | 147 | 2400 | 21 | 271.2 | 99.8 | ||
| 45VQ | 42 | 134 | 2400 | 17.5 | 255.8 | 91.4 | 34.1 |
| 45 | 147 | 2200 | 17.5 | 271.2 | 99.8 | ||
| 50 | 156 | 2200 | 17.5 | 303.8 | 105.2 | ||
| 57 | 180 | 2200 | 17.5 | 343.7 | 120.2 | ||
| 60 | 189 | 2200 | 17.5 | 369.2 | 126.8 | ||
| 66 | 208 | 2200 | 17.5 | 408.7 | 142.4 | ||
| 75 | 237 | 2200 | 14 | 460 | 120.2 |
Model Number Designation
| (F3-) | PC- | 20VQ | -5 | -R | -10 |
| Front marks | Pump core marks | Models | Displacement code | Direction of rotation | Designing No. |
| No mark: water- in oil emulsion of petroleum series F:Sul phosuccinic ester fatty of acid | PC-single pump core Shaft end core of double vane pumps PCT-cover end core of double vane pumps | 20VQ | 2,3,4,5,6,7,8,9,10,11,12,14 | (from shaft end pump) L-counterclockwise rotation R-clockwise rotation | 10 |
| 25VQ | 10,12,14,15,17,19,21 | ||||
| 35VQ | 21,25,30,32,35,38,45 | ||||
| 45VQ | 42,45,50,57,60,66,75 |

The series high pressure resistant composition vane pumps with high performance are developed for engineering machinery application,especially for walking machinery. The main features are as follows:
1. Adopt the structure of hydraulic balancing composition vans, making the resistant pressure higher to maximum 21 Mpa.
2. Adopt the structure of floating side plate supporting with its function of automatic tolerance compensation, which helps to get pressure balance and high performance under high rotation speed and high pressure.
3. Adopt bimetal flexible material for side plates, which dramatically improves the engagement performance of the gears and thus makes the pump working better and longer.
Model Number Designation
| (F3-) | ****VQ | ** | A | ** | (F) | -* | * | 20 | |
| Front marks | Code of series | Displacement codes | Pump port connection | Displacement code cover end pump | Mounting type | Shaft extension | Pump position | Designing No. | Direction of rotation |
| No mark: water-in oil emulsion of petroleum series F3:Sul phosuccinic ester fatty of acid | 2520VQ | 10.12.14,15,1 7,19,21 | A-SAE 4-boltsd Flange | 2.3.4,5,6,7,8,9 10,11,12,14 | No marks: Flange mounting F-Foot mounting | 1-straight shaft with key 86-heavy-duty straight shaft with key 11-spline shaft | See as the following table | 20 | end pump) No marks: Clockwise rotation - counterclockwi se rotation |
| 3520VQ | 21,25,30,32,3 5,38,45 | 2,3,4,5,6,7,8,9, 10,11,12,14 | |||||||
| 3525VQ | 21,25,30,32,3 5,38,45 | 10,12,14,15,17, 19,21 | |||||||
| 4520VQ | 42,45,50,57,6 0,66,75 | 2.3.4,5,6,7,8,9 10,11,12,14 | |||||||
| 4525VQ | 42,45,50,57,6 0,66,75 | 10,12,14,15,17, 19,21 | |||||||
| 4535VQ | 42,45,50,57,6 0,66,75 | 21,25,30,32,35, 38,45 |
The rated displacement (USgpm) is under the conditions of 1200r/min and 0.69 Mpa (100psi)
Outlet Positions (Viewed from cover end of pump)
