Vdr-1a-1a3-22 Water-in-oil Emulsions Nachi Vdr Hydraulic Vane Pump 20v

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VDR series vane pump characteristics:

1, energy saving, economical pump.

2. Internal high precision pressure compensation structure.

3, because the oil ring spring is eccentric, with a rise in pressure automatically moved to the center, the discharge amount of zero.

4, the relief valve and unloading valve in the loop can be omitted.

5. An increase of input with pressure can prevent oil temperature rising and has the characteristics of small size.

6. The new design achieves low noise and durability. (there are many similarities with the UVN series vane pump).

The use of VDR series vane pumps is:

1, the direction of rotation: the rotation direction of the pump from the axis side to the right rotation (clockwise).

2, oil drain: the drain pipe must be directly under the tank level, and the resistance of the drain pipe is controlled below 0.03MPa.

3, flow control: the flow adjusting bolt right rotation displacement reduced, rotate displacement increase regulation when loosen lock nut, displacement regulation, regulation, please lock nut.

4, pressure regulation: pressure adjustment bolts, turn to the right, pressure drop. Turn left and the pressure rises.

5. About P-Q adjustment at factory (standard product)

Flow regulation = maximum flow specified in product catalog.

Pressure adjustment = set pressure for the upper right surface.

6, the initial operation of the pump, the pump discharge side without load, repeatedly starting motor, pump and exhaust pipe in the air, confirm the pump discharge of oil, at least 10 minutes of continuous operation without load. Piping that is difficult to exhaust when starting, please install the exhaust valve.

7. When you need the floor, please choose the size of the bottom plate from the installation dimension table.

8, hydraulic oil please use R&O type, quite resistant to abrasion resistant ISO VG32? 68 (viscosity index above 90). In addition, the viscosity of the runtime should be selected in the range of 20? 150mm2/s.

9, the temperature of hydraulic oil is 15? 60 degrees. When the oil temperature is below 15 degrees, it should be heated or run at low temperature for 15 degrees. The ambient temperature is 0? 60 C.

10. The oil suction pressure is set to 0.03 - +0.03MPa (- 0.3+0.3kgf/cm2), and the flow rate is less than 2m/sec.

11, as the belt pulley and gear drive, shaft ends avoid radial axial load. The pump shaft is installed horizontally.

12, please use the oil filter to filter the viscosity of about 100 m (150 mesh) products in the oil return pipe to the tank using 25 m pipeline filter.

The pollution degree of 13, hydraulic oil is maintained at less than NAS10, in addition, please pay attention to prevent foreign body and oil mixed with water and color, oil is mixed with white bubble, oil was brown when oil is deteriorated.

14, start repeatedly, start (stop) motor, discharge the air in the pump and pipe.

15. For exhaust pipes which are difficult to exhaust when starting, please install the exhaust valve.

16. Before running, please pump oil into the pump and ensure the full lubrication of the sliding surface of the pump before operation.

17, the core deviation between the pump shaft and the motor shaft is less than 0.05mm, and the installation platform should have enough rigidity. (angle error is less than 1 degrees).