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High-Performance China VQ Series Eaton Vickers Vane Pumps - Reliable Suppliers and Factory for Construction Equipment
Technical Features of Vickers VQ-Series Vane Pumps
1
To adopt balanced hydraulic for the struction of intra-vane and ten-Vane design, higher pressure, top to 21 MPa.
2
To adopt floating structure for side plate, it will do a compensation for end-face clearance by automatic, so that even the pump under high pressure it can maintain a high volumetric efficiency.
3
The side plate is made of dual-metal material, it improved the seizure resistance. and so that the life of pump will be longer.
Model Representation
| (F3-) | 25VQ | 19 | A | (F) | -1 | A | 30 | R |
| Note | Series | Flow code | Port connections | Installation type | Shaft type | Outlet positions | Design number | Rotation |
| No-marking: Petroleum series oil / Emulsification fluid / Water glycol-fluid F3: Phosphate ester fluid |
20VQ | 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 | A-SAE 4 bolt flange | No-marking: Flange Mounting F: Foot Mounting |
1: Str key 151: Spline |
(Viewed from cover end of pump) A-Opposite inlet port B- 90° CCW from inlet C- Inline with inlet D- 90° CW from inlet |
30 | (Viewed from shaft end of pump) R: Right hand for clockwise L: Left hand for counter-clockwise |
| 25VQ | 10, 12, 14, 15, 17, 19, 21, 25 | 1: Str key 86: HD str key 11: Spline |
20 | |||||
| 35VQ | 21, 25, 30, 32, 35, 38, 45 | |||||||
| 45VQ | 42, 45, 50, 57, 60, 66, 75 |
USgpm Flow(USgpm) at 1200r/min and 0.69MPa
Technical Data
| Series | Flowcode (USgpm) | Geometric displacement mL/r | Max.operating pressure MPa | Max.speed r/min | Min.speed r/min |
| 20VQ | 2 | 7(0.43) | 21 | 2700 | 600 |
| 3 | 10(0.61) | ||||
| 4 | 13(0.79) | ||||
| 5 | 16.5(1.01) | ||||
| 6 | 19(1.16) | ||||
| 7 | 22(1.40) | ||||
| 8 | 27(1.67) | ||||
| 9 | 30(1.85) | ||||
| 10 | 31.5(1.92) | ||||
| 11 | 35(2.14) | ||||
| 12 | 40(2.44) | 16 | |||
| 14 | 45(2.78) | 14 | |||
| 25VQ | 10 | 32(1.95) | 21 | 2700 | 600 |
| 12 | 38(2.32) | ||||
| 14 | 43.5(2.65) | ||||
| 15 | 47(2.89) | 2500 | |||
| 17 | 54(3.30) | ||||
| 19 | 60(3.66) | ||||
| 21 | 67(4.13) | ||||
| 25 | 79.2(4.83) | ||||
| 35VQ | 21 | 67(4.13) | 21 | 2500 | 600 |
| 25 | 81(4.94) | ||||
| 30 | 95(5.80) | ||||
| 32 | 101(6.16) | ||||
| 35 | 109(6.65) | 2400 | |||
| 38 | 119(7.26) | ||||
| 45 | 143(8.72) | 14 | |||
| 45VQ | 42 | 134(8.17) | 17.5 | 2400 | 600 |
| 45 | 143(8.72) | 2200 | |||
| 50 | 159(9.70) | ||||
| 57 | 181(11.05) | ||||
| 60 | 189(11.53) | ||||
| 66 | 210(12.81) | ||||
| 75 | 237(14.46) | 14 |
Frequently Asked Questions (FAQ)
What is the maximum operating pressure of the Vickers VQ-Series Vane Pumps?
The Vickers VQ-Series vane pumps can operate at pressures up to 21 MPa for most flow codes in the 20VQ, 25VQ, and 35VQ series. The 45VQ series operates at a maximum pressure of 17.5 MPa.
How does the floating side plate structure benefit the pump's performance?
The floating structure for the side plate automatically compensates for end-face clearances. This allows the pump to maintain high volumetric efficiency even when operating under high pressure.
What material is used for the side plate, and why?
The side plate is made of a dual-metal material. This design improves seizure resistance and significantly extends the service life of the pump.
What fluids are compatible with the VQ-Series Vane Pumps?
Standard models are compatible with petroleum series oil, emulsification fluid, and water glycol-fluid. Models marked with the F3 prefix are designed for use with phosphate ester fluids.
What are the minimum and maximum speeds for these pumps?
The minimum operating speed for all VQ-Series pumps is 600 r/min. The maximum speed ranges from 2200 r/min to 2700 r/min, depending on the specific series and flow code.