China Suppliers Factory Hydraulic Eaton Vickers VQ Series High-Pressure Vane Pump for Construction Equipment
Technical Features of Vickers VQ-Series Vane Pumps
To adopt balanced hydraulic for the struction of intra-vane and ten-Vane design, higher pressure, top to 21 MPa.
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.
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 Mountion |
1 Str key 151 Spline |
(Viewed from cover end of pump) A-Opposite inlet port B- 90o CCW from inlet C- Inline with inlet D- 90o 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 displace-ment 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 are the primary technical features of the Vickers VQ-Series?
The Vickers VQ-Series vane pumps adopt a balanced hydraulic structure with an intra-vane and ten-vane design that supports pressures up to 21 MPa. They feature a floating side plate for automatic clearance compensation and dual-metal side plates to improve seizure resistance and service life.
What is the maximum operating pressure of VQ-Series pumps?
Most VQ-Series models (20VQ, 25VQ, and 35VQ) support a maximum operating pressure of 21 MPa. The 45VQ series has a maximum operating pressure of 17.5 MPa, depending on the specific flow code.
How does the floating side plate structure benefit the pump?
The floating structure automatically compensates for end-face clearance. This allows the pump to maintain highly efficient volumetric performance even when operating under high-pressure conditions.
What types of fluids can be used with these vane pumps?
They are compatible with standard petroleum series oil, emulsification fluids, water glycol-fluids, and phosphate ester fluids (identified by the F3 prefix).
What are the minimum and maximum speed limits for the VQ-Series?
The minimum speed for all models is 600 r/min. The maximum speed ranges from 2200 r/min to 2700 r/min, depending on the specific pump series and model configuration.