VG Series Internal Gear Pumps - High Pressure, Low Noise Pumps from China Suppliers & Factory
Model Representation
| VG1 | -63 | R | E | W | -A1 |
| Series | ml/r Displacement | Rotation | Shaft type | Sealing material | Design number |
| VGH0 | 003, 004, 005 |
Viewed from shaft end of pump R = Right hand for clockwise L = Left hand for counter-clockwise |
K = Straight key shaft |
W = (Buna) NBR V = (Viton) FKM |
1K |
| VG0 | 8, 10, 13, 16, 20, 25, 28 |
E = Straight key shaft R = SAE Spline shaft |
A1 | ||
| VG1 | 25, 32, 40, 50, 63 50H, 63H |
||||
| VG2 | 80, 100, 125, 145, 160 |
Technical Data
| Series | ml/r | ml/r | MPa | MPa | r/min | kg |
|---|---|---|---|---|---|---|
| Displacement | Theory Displacement | Rated Pressure | Max. Pressure | Max. Speed | Weight | |
| VGH0 | 3 | 3 | 33 | 40 | 4200 | 4.6 |
| 4 | 4 | 4.8 | ||||
| 5 | 5 | 4.8 | ||||
| VG0 | 8 | 8.2 | 31.5 | 35 | 3000 | 4.6 |
| 10 | 10.2 | 4.8 | ||||
| 13 | 13.3 | 4.9 | ||||
| 16 | 16 | 5.2 | ||||
| 20 | 20 | 25 | 30 | 5.6 | ||
| 25 | 24 | 6 | ||||
| 28 | 27 | 6.4 | ||||
| VG1 | 25 | 25.3 | 31.5 | 35 | 14.5 | |
| 32 | 32.7 | 15 | ||||
| 40 | 40.1 | 16 | ||||
| 50 | 50.7 | 17 | ||||
| 63 | 63.7 | 25 | 30 | 18.5 | ||
| VG2 | 80 | 81.4 | 31.5 | 35 | 43.5 | |
| 100 | 100.2 | 45.5 | ||||
| 125 | 125.3 | 48 | ||||
| 145 | 145.2 | 25 | 28 | 50 | ||
| 160 | 162.8 | 21 | 26 | 52 |
Characteristic & Noise Curves
1500r/min Characteristic curve
2000r/min Characteristic curve
1500r/min Noise curve
2000r/min Noise curve
VGH0 Installation Dimensions
VG0 Installation Dimensions
| Model | L1 | L2 | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|---|
| VG0-08 | 107 | 54 | 38.1 | 17.5 | Φ13 | M8 Depth 13 | 47.6 | 22.2 | Φ19 |
| VG0-10 | 111 | 56 | 52.4 | 26.2 | |||||
| VG0-13 | 117.5 | 59.25 | |||||||
| VG0-16 | 123 | 62 | |||||||
| VG0-20 | 131 | 66 | 47.6 | 22.2 | Φ18 | M10 Depth 15 | 58.7 | 30.2 | Φ26 |
| VG0-25 | 139 | 70 | Φ19 | Φ28 | |||||
| VG0-28 | 145 | 73 |
VG1 Installation Dimensions
| Model | L1 | L2 | A | B | C |
|---|---|---|---|---|---|
| VG1-25 | 139 | 73 | 47.6 | 22.2 | Φ18 |
| VG1-32 | 146 | 76.5 | |||
| VG1-40 | 153 | 80 | 52.4 | 26.2 | Φ20 |
| VG1-50 | 163 | 85 | |||
| VG1-63 | 177 | 92 | |||
| VG1-50H | 163 | 85 | see page 11 oil port size | ||
| VG1-63H | 177 | 92 | |||
VG2 Installation Dimensions
| Model | L1 | L2 | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|---|---|
| VG2-80 | 204 | 109.5 | 69.9 | 35.7 | Φ32 | M12 Depth 20 | 77.8 | 42.9 | Φ51 | M12 Depth 20 |
| VG2-100 | 213 | 114 | ||||||||
| VG2-125 | 225 | 120 | 79.4 | 36.5 | Φ38 | M16 Depth 25 | 88.9 | 50.8 | Φ63.5 | |
| VG2-145 | 235.5 | 124.75 | ||||||||
| VG2-160 | 243 | 129 | 106.4 | 61.9 | Φ76 | M16 Depth 25 |
VG series single pump inlet and outlet oil port connection size
| Model | Specifications | S | A1 | B1 | C1 | Corresponding flange | P | A2 | B2 | C2 | Corresponding flange |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VG0 | 8 | 19 | 47.6 | 22.2 | M10 Depth 15 | F06 | 13 | 38.1 | 17.5 | M8 Depth 13 | F04 |
| 10 | 52.4 | 26.2 | F08 | ||||||||
| 13 | |||||||||||
| 16 | |||||||||||
| 20 | 26 | 58.7 | 30.2 | F10 | 18 | 47.6 | 22.2 | M10 Depth 15 | F06 | ||
| 25 | 28 | 19 | |||||||||
| 28 | |||||||||||
| VG1 | 25 | 32 | 58.7 | 30.2 | M10 Depth 17 | F10 | 18 | 47.6 | 22.2 | M10 Depth 17 | F06 |
| 32 | |||||||||||
| 40 | 20 | 52.4 | 26.2 | F08 | |||||||
| 50 | |||||||||||
| 63 | |||||||||||
| 50(H) | 38 | 69.9 | 35.7 | M12 Depth 20 | F12 | ||||||
| 63(H) | 51 | 77.8 | 42.9 | F16 | |||||||
| VG2 | 80 | 51 | 77.8 | 42.9 | M12 Depth 20 | F16 | 32 | 69.9 | 35.7 | M12 Depth 20 | F12 |
| 100 | |||||||||||
| 125 | 63.5 | 88.9 | 50.8 | F20 | 38 | 79.4 | 36.5 | M16 Depth 25 | F14 | ||
| 145 | |||||||||||
| 160 | 76 | 106.4 | 61.9 | M16 Depth 25 | F24 |
Product Display
Frequently Asked Questions
1. How do I interpret the model designation for VG series pumps?
Taking "VG1-63REW-A1" as an example: "VG1" denotes the pump series, "-63" indicates the nominal displacement of 63 ml/r, "R" indicates clockwise rotation (viewed from the shaft end), "E" is a straight key shaft, "W" indicates NBR sealing material, and "A1" is the design code.
2. What are the maximum operating pressure and speed capabilities?
The VGH0 series supports a rated pressure of 33 MPa (maximum 40 MPa) and a maximum speed of up to 4200 r/min. Standard VG0, VG1, and VG2 series operate at rated pressures between 21 MPa and 31.5 MPa with maximum speeds up to 3000 r/min.
3. What shaft configurations and sealing materials are available?
Available shaft types include straight key shafts (K for VGH0, E for VG0/VG1/VG2) and SAE spline shafts (R for VG0/VG1/VG2). Sealing options include standard NBR (Buna-N, code W) and FKM (Viton, code V) for high-temperature and harsh chemical compatibility.
4. How do I select the right flange connection for inlet and outlet ports?
Oil port connections correspond to standard flange sizes ranging from F04 to F24. Refer to the port connection dimension table for specific hole thread depths (e.g., M8, M10, M12, M16) and spacing dimensions (A1/B1/A2/B2) for your chosen displacement.
5. What total range of displacement is covered by the VG product line?
The VG pump family provides a comprehensive range of displacements from small-volume VGH0 (3 to 5 ml/r), compact VG0 (8 to 28 ml/r), mid-range VG1 (25 to 63 ml/r), up to heavy-duty VG2 series (80 to 160 ml/r).
6. What rotation options are supported across the VG series?
All models can be configured for either clockwise rotation (Code R, right-hand) or counter-clockwise rotation (Code L, left-hand) when viewed from the shaft end of the pump.

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