Vane Pumps Nachi VDR13 variable volume vane pump 20 to 45 l/min 6 Mpa with new design, energy efficient, built in high precision. Available for single pump and double pump/ foot mounting type.
Features of Vane Pumps Nachi VDR13:
- Energy efficient, economical operation
- Built – in high – precision temperature compensation mechanism
- The ring is displaced by a spring, and a rise in pressure automatically moves it to the center to make the discharge rate zero.
- Relief valve and unloading valve can be eliminated from the circuit
- It was possible to reduce the size of the unit because there was no increase of proportional input to pressure which prevented increases in the temperature of the fluid.
- New design for lower noise and improved durability
- Handling
- Rotation Direction
The direction is always is clockwise (rightward) when viewed from the shaft side - Drain
Drain piping must be direct piping up to a point that is below the tank fluid level, and back pressure due to pipe resistance
- Rotation Direction

Specification of VDR-1A(B)-1A1-13:
- Capacity : 13.9 cm3/rev
- No-load Discharge Rate :
- 1000min−1 : 14 l/min
- 1200min−1 : 16.5 l/min
- 1500min−1 : 21 l/min
- 1800min−1 : 25 l/min
- Pressure adjustment range : 1 to 2 Mpa {10.2 to 20.6 kgf/cm2}
- Allowable peak pressure : 14 Mpa 143 kgf/cm2
- Revolution speed : 800 (min) ; 1800 (max)
- Weight : 8 kg
Specification of VDR-11A(B)-1A1-1A1-13 (Double Pump)
- Vent side
- Discharge rate : 25 l/min
- Pressure adjustment range : 1 to 2 Mpa {10.2 to 20.4 kgf/cm2}
- Shaft side :
- Discharge rate : 25 l/min
- Pressure adjustment range : 1 to 2 Mpa {10 to 20.4 kgf/cm2}
- Allowable peak pressure : 14 Mpa (143 kgf/ cm2)
- Revolution speed min-1 : 800 (min) ; 1800 (max)
- Weight : 14 kg



