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35VQ high-speed, high-pressure vane pump

Key words:Hydraulic tools

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VQ series high-speed and high-pressure vane pumps

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Specification

Model	Displacement Code	Geometry Displacement mL/r	Anti-wear oil or Phosphate ester liquid		Weight Kilogram
			Maximum Pressure MPa	Maximum Speed r/min
35VQ	21	64	21	2500	22.7
	25	79.2
	30	95.0
	32	101
	35	109		2400
	38	118
	45	142	14

Note: ①When the working fluid is phosphate ester liquid, use special seal (FPM). When ordering, add the prefix [F-] before the specified model. ②The outlet pressure must always be higher than the inlet pressure.

②The outlet pressure must always be higher than the inlet pressure.

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 and rigid, and able to fully absorb vibrations.

2. Set the suction pressure of the pump inlet port: 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 NSA12.

4. Normal pump operation (under rated conditions) is based on the use of SAE10W oil (or equivalent viscosity) in 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 prime immediately, air should be bled from the pump discharge line.

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

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

8. Cold start conditions: When operating SAE10W oil, the viscosity is in the range of 860 to 40 cSt, and 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 care must be taken 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 less than 13 cSt, and the temperature should not exceed 99℃, as the expected life of the cassette airbag and elastomer will be reduced.

Installation Connection Dimensions

◎ Key Shaft

Model	Shaft Cooling	A	B	C	D	E	F Key Width × Length
35VQ	1	73.2	9.5	11.1	31.75/31.72	35.25/35.10	7.94×40
35VQ	86	86.4	9.5	11.1	34.90/34.87	38.4/38.15	7.94×54

◎ Splined Shaft

Model	Shaft Cooling	A	B	C	D	E	Spline Data
							Number of Teeth Number of Teeth	Pitch	Large Diameter Small Diameter	Root Small Diameter	Matching 12/24
35VQ	11	58.7	9.5	11.1	6.35	35.1	14	31.7/31.67	26.99/26.64	Large Diameter	Matching diameter fit

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