China VG Series Internal Gear Pump Suppliers - High-Pressure, Low-Noise Pumps from Reliable 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 |
Performance Curves
1500r/min Characteristic curve
2000r/min Characteristic curve
1500r/min Noise curve
2000r/min Characteristic curve
Installation Dimensions
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 (FAQ)
Q1: What do the rotation codes "R" and "L" stand for in the VG series model code?
A1: When viewed from the shaft end of the pump, "R" represents Right hand for clockwise rotation, and "L" represents Left hand for counter-clockwise rotation.
Q2: What sealing materials are available for the VG series oil pumps?
A2: The VG series offers two sealing material options: "W" for NBR (Buna) and "V" for FKM (Viton).
Q3: What are the differences between the shaft types in the model representation?
A3: The shaft options include "K" (Straight key shaft for VGH0 series), "E" (Straight key shaft for VG0, VG1, and VG2 series), and "R" (SAE Spline shaft).
Q4: What is the maximum speed capability of the VGH0 series compared to the VG0, VG1, and VG2 series?
A4: The VGH0 series has a maximum speed of 4200 r/min, while the VG0, VG1, and VG2 series pumps operate at a maximum speed of 3000 r/min.
Q5: What rated pressure can the VG series pumps handle?
A5: The VGH0 series is rated for 33 Mpa (maximum pressure 40 Mpa). Most models in the VG0, VG1, and VG2 series are rated for 31.5 Mpa (maximum pressure 35 Mpa), while specific high-displacement models handle up to 25 Mpa.
Q6: How do I select the corresponding flange size for the oil port connection?
A6: Flange sizes are determined by pump specifications. For example, VG0-08 uses F06 for the inlet (S) and F04 for the outlet (P), whereas VG2-80 uses F16 for the inlet and F12 for the outlet. Refer to the connection size table for full configuration details.

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