The pump features a hydraulic-balanced mother-and-child vane structure, delivering high pressure, large flow rate, compact size, smooth operation, and low noise. Its cartridge-type design allows on-site replacement of the core assembly, minimizing downtime and enhancing productivity. Additionally, this series of vane pumps offers comprehensive specifications, excellent and reliable performance, simple and rational construction, and convenient installation and maintenance.
VQ Series vane pumps use a hydraulically balanced intravane design to combine pressure capability, flow capacity, and smooth operation in a compact package. Single, double, and replaceable-cartridge configurations are available, with selection based on displacement, shaft extension, and port orientation.
The cartridge can be replaced on site, reducing complete-pump disassembly and equipment downtime. The series offers relatively low noise and convenient maintenance, making it suitable for continuous hydraulic power supply in construction machinery and industrial equipment.
MODEL INSTRUCTION
| F3 | – | 20VQ | – | 5 | A | F | – | 11 |
| Sealing Method | Serial Number | Displacement Code | Connection Method | Installation and Shaft Sealing Method | Shaft extension type | |||
| F3:Fluoroelastomer Seal Omit if no requirement | 20VQ
(7.5~45mL/r) |
2、3、4、5、6、7、8、9、10、11、12、14 | 1.A-SAE4 Bolt Connection
M-metric thread I-Inch Thread |
1.S-flange-mounted shaft with double sealing;
2.When omitted, the flange-mounted shaft uses a single seal； 3.F-bracket mounting; |
1.Type 1-1 Flat Key (Standard Type)
2.Type 86-86 Flat Key (Reinforced Type; Not Available for 20VQ) 3.Type 151-151 Spline (for 20VQ Only) 4.Type 11-11 Spline (Not Available for 20VQ) |
|||
| 25VQ
(32~67.5mL/r) |
10、12、14、15、17、19、21 | |||||||
| 35VQ
(67.9~121.6mL/r) |
25、30、32、35、38 | |||||||
| 45VQ
(138.7~237mL/r) |
42、45、50、57、60、66、75 |
TECHNICAL FEATURE
01. Comprehensive specifications; convenient for installation and maintenance
02. Side plates made of bimetallic material enhance anti-galling performance, extending pump service life
03. Advanced flexible side plate structure automatically compensates for end-face clearance, further increasing pump speed and effectively extending service life
04. High pressure, large flow rate, and simple structure
05. Reliable pressure-balanced clearance compensation ensures superior volumetric efficiency
06. Optimized core design further reduces pressure and flow pulsation as well as noise
SPECIFICATION
| Serial Number | Code Name | Displacement | Minimum rotational speed
rpm |
Use anti-wear hydraulic oil or phosphoric acid | Use water-glycol | Use oil-based water-in-oil emulsion | ||||
| mL/r | In3/r | Maximum Speed | Maximum Operating Pressure | Maximum rotational speed | Maximum Operating Pressure | Maximum Speed | Maximum Operating Pressure | |||
| 20VQ | 2~14 | 7~45.9 | 0.43~2.8 | 600 | 2700 | 21 | 1500 | 16~14 | 1800 | 14 |
| 25VQ | 10~21 | 32~67.5 | 1.95~4.12 | 2500~2700 | 1500 | |||||
| 35VQ | 21~38 | 67.9~121.6 | 4.14~7.42 | 2200 | 1200 | 16 | ||||
| 45VQ | 42~75 | 138.7~237 | 8.46~14.46 | 17.5 | ||||||
APPLICATION AREA
Suitable for: machine tools, pressure die-casting machines, construction machinery, plastic machinery, and various hydraulic systems.
Please feel free to contact us with any questions，we’ll provide you with professional solutions.
