China VG Internal Gear Combined Pump - Reliable Suppliers & Factory for VG11, VG21, VG22 Series Pumps
Model Designation
| VG11 | -63 | -40 | R | E | W | -A1 |
| Series | ml/r Flow code of shaft end pump | ml/r Flow code of cover end pump | Rotation direction | Shaft type | Sealing material | Design number |
| VG11 | 25、32、40、50、63 50H、63H |
25、32、40、50、63 50H、63H |
Viewed from shaft end of pump R= Right hand for clockwise L-Left hand for counter- clockwise |
E= Straight key shaft R=SAE Spline shaft |
W=(Buna) NBR V=(Viton) FKM |
A1 |
| VG21 | 80、100、125、 145、160 |
25、32、40、50、63 50H、63H |
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| VG22 | 80、100、125、 145、160 |
80、100、125、 145、160 |
VG11 Installation Dimensions
| Front pump | L1 | Rear pump | |||||||||
| 25 | 32 | 40 | 50 | 63 | |||||||
| L2 | L3 | L2 | L3 | L2 | L3 | L2 | L3 | L2 | L3 | ||
| 25 | 73 | 215.5 | 283 | ||||||||
| 32 | 76.5 | 222.5 | 290 | 226 | 297 | ||||||
| 40 | 80 | 229.5 | 297 | 233 | 304 | 236.5 | 311 | ||||
| 50 | 85 | 239.5 | 307 | 243 | 314 | 246.5 | 321 | 251.5 | 331 | ||
| 63 | 92 | 253.5 | 321 | 257 | 328 | 260.5 | 335 | 265.5 | 345 | 272.5 | 359 |
VG21 Installation Dimensions
| Front pump | L1 | Rear pump | |||||||||
| 25 | 32 | 40 | 50 | 63 | |||||||
| L2 | L3 | L2 | L3 | L2 | L3 | L2 | L3 | L2 | L3 | ||
| 80 | 109.5 | 293 | 359 | 296.5 | 366 | 300 | 373 | 305 | 383 | 312 | 397 |
| 100 | 114 | 302 | 368 | 305.5 | 375 | 309 | 382 | 314 | 392 | 321 | 406 |
| 125 | 120 | 314 | 380 | 317.5 | 387 | 321 | 394 | 326 | 404 | 333 | 418 |
| 145 | 124.8 | 323.5 | 389.5 | 326.5 | 396.5 | 330.5 | 403.5 | 335.5 | 413.5 | 342.5 | 427.5 |
| 160 | 129 | 332 | 398 | 335.5 | 405 | 339 | 412 | 344 | 422 | 351 | 436 |
VG22 Installation Dimensions
| Front pump | L1 | Rear pump | |||||||||
| 80 | 100 | 125 | 145 | 160 | |||||||
| L2 | L3 | L2 | L3 | L2 | L3 | L2 | L3 | L2 | L3 | ||
| 80 | 109.5 | 320.5 | 412 | ||||||||
| 100 | 114 | 330.5 | 420 | 335 | 429 | ||||||
| 125 | 120 | 342.5 | 432 | 347 | 441 | 353 | 453 | ||||
| 145 | 124.8 | 352 | 441.5 | 356.5 | 450.5 | 362.5 | 462.5 | 367 | 472 | ||
| 160 | 129 | 360.5 | 450 | 365 | 459 | 371 | 471 | 375.5 | 480.5 | 380 | 489 |
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Frequently Asked Questions
What does the model code prefix VG11, VG21, and VG22 represent?
These prefixes represent the pump series. Specifically, VG11, VG21, and VG22 designate the specific configuration of the double pump systems, defining combinations of flow capabilities for both the shaft end and cover end pumps.
What flow codes are available for the shaft end and cover end pumps?
For VG11, flow codes range from 25 to 63 (including 50H and 63H). For VG21, the shaft end supports 80 to 160, while the cover end supports 25 to 63H. For VG22, both the shaft end and cover end support larger flow codes from 80 to 160 ml/r.
How is the rotation direction of the VG series oil pump determined?
The rotation direction is determined by viewing the pump from the shaft end. "R" stands for right-hand (clockwise rotation) and "L" stands for left-hand (counter-clockwise rotation).
What shaft types and sealing materials can be selected?
The pumps support two shaft types: "E" (Straight key shaft) and "R" (SAE Spline shaft). Sealing material options include "W" (Buna NBR) and "V" (Viton FKM).
How do the installation dimensions vary between VG11, VG21, and VG22?
Dimensions depend on the specific combinations of the front and rear pump flow rates. The overall length L2 and L3 dimensions scale up with higher flow capacities, as detailed in the installation dimension tables for each series.

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