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VG22 (10).JPG
VG21 (2).JPG
VG21 (3).jpg
VG21 (4).jpg
VG22 (5).jpg
VG22 (9).jpg
VG11 (2).JPG

China VG Internal Gear Combined Pump - Reliable Suppliers and Quality Factory Production

Introducing the Combined Pump, a cutting-edge solution engineered for optimal performance. This innovative pump consists of two single pumps assembled in series, featuring independent oil inlets and outlets for enhanced efficiency. Designed to accommodate various displacement requirements, our pump is available in VG11, VG21, and VG22 series, As a prominent factory in China, we proudly serve as top suppliers for high-quality pumps that meet diverse industrial needs. Choose our Combined Pump for reliable operation and superior functionality, backed by our commitment to excellence in manufacturing

Model Representation

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Product Details

Model Designation

VG OIL PUMP

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

VG22

80、100、125、
145、160

80、100、125、
145、160

VG11 Installation Dimensions

VG11 Installation Dimensions (2)

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

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

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

Product Display

VG11 (2)
VG22 (9)
VG22 (5)
VG21 (4)

Frequently Asked Questions (FAQ)

What does the model code VG11, VG21, and VG22 represent?
These codes represent different series of double gear pumps. The numbers indicate the frame size combinations of the front and rear pumps. For example, VG11 uses smaller displacement configurations on both ends, while VG21 and VG22 combine larger displacement units to meet varying hydraulic system flow requirements.
How can I determine the rotation direction of the VG series oil pump?
The rotation direction is determined by viewing the pump from the shaft end. In the model designation code, "R" stands for Right-hand (clockwise rotation) and "L" stands for Left-hand (counter-clockwise rotation).
What shaft types and sealing materials are available?
VG series pumps offer two shaft types: "E" for a Straight key shaft and "R" for an SAE Spline shaft. For sealing options, you can choose "W" for NBR (Buna-N) seals, suitable for standard operating temperatures, or "V" for Viton (FKM) seals, which offer superior high-temperature and chemical resistance.
How do I find the correct installation dimensions for my pump model?
Installation dimensions (L1, L2, L3) vary depending on the displacement code of both the front and rear pumps. Please refer to the specific installation dimension tables provided above for the VG11, VG21, and VG22 series to match your exact model configuration.
What is the difference between standard and "H" flow codes (e.g., 50 vs 50H)?
The standard flow codes (like 25, 32, 40, 50, 63) correspond to standard nominal displacement configurations. The "H" suffix (e.g., 50H, 63H) designates high-pressure or modified displacement variations engineered for specific high-performance industrial applications.