What are the specifications of NACHI VDC series vane pumps?

The specifications of Japan’s NACHI Fujikoshi VDC series variable vane pumps cover displacement, pressure, speed, viscosity, temperature, weight and other aspects, as follows：
Displacement range
Typical value: 16~100 cm3/rev (such as VDC-1A-2A2, VDC-2B-2A2 and other models).
Pressure parameters
Rated pressure: 21 MPa (17.5MPa for some models).
Peak pressure: 25 MPa (short-term allowable).
Pressure adjustment range: 1.5~14Mpa (15.3~143kgf/cm2), which is specifically divided into multiple ranges, such as 1.5~3.5MPa, 2~7MPa, 5~10.5MPa, 7~14Mpa, etc.

Speed range
Typical value: 600~1800 rpm (the maximum speed of some models can reach 3000 rpm).
Applicable viscosity
Range: 10~400 cSt (recommended ISO VG32~68).
Oil temperature range
Working temperature: -20℃~+80℃.
weight
Range: 10~30 kg (depending on the model).

Other characteristic parameters
Volumetric efficiency: more than 90%.
Noise value: ≤65 dB (A) (depending on the model).
Pressure adjustment time: ≤50 Ms.
Life span: High-strength alloy steel blades and wear-resistant stators are used, with a life span of more than 10,000 hours.
Model example and corresponding parameters
VDC-01A: displacement 16cc/rev (single side), rated pressure 21MPa, maximum speed 3000rpm, driving power 5.5kW.
VDC-1B-2A3-U-20: The rated output power of the motor is 2.2kW (under specific pressure and flow conditions).