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High performance composition vane pumps for walking machinery
Introductions:
The high pressure resistant composition vane pumps with high performance are developed for engineering machinery application,especially for walking machinery.The main fetures are as follows:
1, Adopt the structure of hydraulic balancing composition vanes,making the resistant pressure higher to maximum 21Mpa.
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 lifetime.
Model Descriptions:
| 25VQ | 21 | A | (F) | -1 | A | 20 | L |
Code of series | Displacement codes | Pump port connection | Mounting type | Shaft extension | Outlet port pisition | Design No | Direction of rotation |
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 inlet B-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 with key | 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 0.69Mpa(100psi).
Operating parameters:
Performance parameters:
SAE 10W by hydraulic fluid △82℃(180℉),pump inlet △0 PSIG(14.71/Psia)
Notes:The pressure of outlet port must be higher than the one of inlet port.
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