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VG22D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines

VG22D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines

VG22D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines

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Introduction double pump

The double pump is composed of two single pumps assembled in series, with one oil inlet and independent oil outlet, according to the series of two pumps, can be obtained displacement: VG10D series, VG11D series, VG21D series, VG22D series.

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Description

Product Features

The front and rear oil pumps adopt floating flower-splined coupling structure, with a unique grease formula to ensure stable performance, long life and low noise of the oil pump;
The maximum displacement can be extended to 320CC, which provides enough choice space for motor and driver selection and model selection;
The direction of oil outlet and suction outlet of oil pump is flexible and easy to install;
Any displacement combination, to meet the needs of different working conditions.
  • Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines VG11D (1)
  • VG11D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines
  • VG21D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines
  • VG22D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines

Model Designation

VG11D

-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

VG10D

25、32、40、50、63

8、10、13、16、
20、25

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=FKM

A1

VG11D

25、32、40、50、63

25、32、40、50、63

VG21D

80、100、125、
145、160

25、32、40、50、63

VG22D

80、100、125、
145、160

80、100、125、
145、160
Installation-Dimensions

Front
pump

L1

L2

Rear pump

80

100

125

145

160

L3

L4

L3

L4

L3

L4

L3

L4

L3

L4

80

109.5

238.5

233

437

100

114

247.5

237.5

446

242

455

125

120

259.5

243.5

458

248

467

254

479

145

124.8

269

248.3

467.5

252.8

476.5

258.8

488.5

263.5

498

160

129

277.5

252.5

476

257

485

263

497

267.8

506.5

272

515
Installation-Dimensions

Front
pump

L1

L2

Rear pump

25

32

40

50

63

L3

L4

L3

L4

L3

L4

L3

L4

L3

L4

80

110

231

205

380

208

387

211.5

394

216.5

404

223.5

418

100

114.0

240

209.0

389

213

396

216

403

221

413

228

427

125

120

252

215

401

218.5

408

222

415

227

425

234

439

145

125

262

220

411

223.3

418

227

425

232

435

238.8

448.5

160

129

270

224

419

227.5

426

231

433

236

443

243

457
Installation-Dimensions

Front
pump

L1

L2

Rear pump

25

32

40

50

63

L3

L4

L3

L4

L3

L4

L3

L4

L3

L4

25

73

161

161

300

32

76.5

168

164.5

307

168

314

40

80

175

168

314

171.5

321

175

328

50

85

185

173

324

176.5

331

180

338

185

348

63

92

199

180

338

183.5

345

187

352

192

362

199

376
Installation-Dimensions

Front
pump

L1

L2

Rear pump

08

10

13

16

20

25

L3

L4

L3

L4

L3

L4

L3

L4

L3

L4

L3

L4

25

73

153.5

138.5

264.5

140.5

268.5

143.8

275

146.5

280.5

150.5

288.5

154.5

296.5

32

76.5

160.5

142

271.5

144

275.5

147.3

282

150

287.5

154

295.5

158

303.5

40

80

167.5

145.5

278.5

147.5

282.5

150.8

289

153.5

294.5

157.5

302.5

161.5

310.5

50

85

177.5

150.5

288.5

152.5

292.5

155.8

299

158.5

304.5

162.5

312.5

166.5

320.5

63

92

191.5

157.5

302.5

159.5

306.5

162.8

313

165.5

318.5

169.5

326.5

173.5

334.5

FAQ

Q1: Can the two pump sections of the VG double pump have different displacements (flow rates)?
A: Yes, absolutely. A key feature of our VG double pump series is the ability to combine two cartridge assemblies (pump sections) with different displacements. This flexibility allows you to create a compact, custom flow solution perfect for applications like:
● Plastic Injection Molding Machines: High flow for fast mold closing, lower flow for high-pressure injection.
● Machine Tools: High flow for rapid traverse, lower flow for precise feed motion.
Q2: How is the pressure rating handled for each section of the double pump?
A: Each pump section within the VG double pump has its own independent outlet port and is rated for its own maximum operating pressure (as listed in the technical specifications). This means:
● Circuit A can operate at its maximum rated pressure (e.g., 250 bar).
● Circuit B simultaneously operates at a different pressure (e.g., 150 bar), as determined by the load in each circuit and their respective pressure relief valves.
● The common shaft and bearings are designed to handle the combined loads from both sections.
Q3: If one pump section fails, does the entire double pump unit need to be replaced?
A: No, in most cases, the entire unit does not need to be replaced. The modular design of the VG double pump allows for individual repair or replacement of the faulty cartridge assembly (pump section). This serviceability feature:
● Reduces Downtime: You can service only the failed section.
● Lowers Lifecycle Cost: It is more economical than replacing the complete pump assembly.
We provide comprehensive support, including detailed documentation and availability of repair kits and individual cartridges to minimize your maintenance overhead.

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