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4520VQ Vane Pumps with High Speed and High Pressure

Key words:

VANE PUMP

HYDRAULIC PUMP

VQ Series vane pumps with high performance and high pressure which designed for constraction machinery especially for mobile machinery. Features: 1.Designed by intra-vane structure, reduce the vane pressure to rotor, makes stable performance and longer life in high speed and pressure. 2.To adopt folating structure for side plate,will do a compensation for end-face clearance by automatic,makes high speed and high pressure which can up to 21MPa. 3.The plate is made of dual-metal material, improved the seizure resistance. Complete displacement, composite structure and high pricise spare parts allows convenient maintenance.

Category:

VQ Series Vane Pumps with high speed and High Pressure

E-mail:

xjylhmc@163.com

lindawu@chinayongling.com

Tel:

+86-576-87759882(Domestic sales)

+86-576-87759065(Foreign sales)

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Related Products

Details

Specifications

Series	Displacement code of shaft end pump	Displacement code of cover end pump
4520VQ	42、 45、 50、 57、 60、 66、 75	2、 3、 4、 5、 6、 7、 8、 9、 10、 11、 12、 14

Model Code

Installation and Use

1. During installation, the concentricity tolerance between the pump shaft and the motor must be less than 0.10 mm (TIR), the maximum allowable angular error must be less than 0.2 degrees, and a flexible coupling must be used; the pump shaft must not bear radial and axial loads; the bracket must be strong, rigid, and able to fully absorb vibration.

2. Set the suction pressure of the pump inlet: The recommended inlet pressure is 0 to 35 Kpa.

3. The oil should be kept clean, and the pipelines and oil tank must be thoroughly cleaned; the cleanliness of the oil should be within the NSA12 range.

4. Normal pump operation (under rated conditions) is based on the use of SAE10W oil (or equivalent viscosity) within the range of 38℃ to 82℃.

5. Check the inlet, outlet, and rotation direction before starting the pump. After fixing the pump, manually rotate the pump shaft evenly and flexibly. During the first start-up, if the pump does not pump immediately, air should be discharged from the pump's delivery pipeline.

6. For the first use, the pump body and oil suction pipe should be filled with oil, and the pump should not run without oil.

7. Do not start the pump when the outlet pressure is lower than the inlet pressure. This will cause operating noise and blade instability.

8. Cold start conditions: When operating SAE10W oil in the range of 860 to 40 cSt, the speed and pressure should be limited to 50% or less of their respective rated values until the system warms up. When the fluid viscosity is greater than 860 cSt, extreme caution must be exercised when starting the equipment, and attention should be paid to heating the entire system, including remote cylinders and motors.

9. At high temperatures, the viscosity should not be lower than 13 cSt, and the temperature should not exceed 99℃, because the expected life of the card airbag and elastomer will be reduced.

Installation Connection Dimensions

◎ Str. Key shaft

Model	Cold of shaft	A	B	C	D	E	F Key Width × Length
4520VQ	1	62	12.7	14.2	31.75/31.70	35.25/35.10	7.94×28.5
4520VQ	86	87.4	12.7	14.2	38.075/38.05	42.4/42.25	9.54×50.8

◎ Spline shaft

Model	Cold of shaft	A	B	C	D	E	Spline Data
							Number of Teeth	Pitch	Major Diameter	Minor Diameter	Flast root fit
4520VQ	11	61.9	12.7	14.3	9.7	39.6	14	12/24	31.7/31.67	26.99/26.64	Large diameter fit

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HOTLINE:

Foreign sales:

+86-13819662724

Domestic sales:

13968563323/13958514945/13666851636/13968535901/

+86-13968532998/13968565668/13968552819

Foreign sales:+86-576-87759065

Domestic sales:+86-576-87759882

FAX:

+86-576-87827561

Add :NO.118 Luxing Middle Road, Anzhou Street, Xianju, Zhejiang, China

Email : xjylhmc@163.com / lindawu@chinayongling.com

URL：http://www.chinayongling.com

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