日本YUKENA3H系列變量柱塞泵主要信息

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The maximum shaft speeds shown in the above table are at suction pressure 0 kPa (0 PSIG).

Type of Fluids

Shaft Speed Range r/min

A3H  16-*R01KK-10* A3H  37-*R01KK-10* A3H  56-*R01KK-10* A3H  

71-*R01KK-10* A3H100-*R01KK-10* A3H145-*R01KK-10* A3H180-*R01KK-10*

21 (3050) 25 (3630)

 at 1500 r/min or more. For the design numbers of pumps for European Design 

and North American Design Standards, please contact us.

Specifications and Design numbers for Special Fluids

Allowable Maximum Shaft Speed r/min

Water-Glycols

Phosphate Ester Type

Polyol Ester Type

Viscosity Range

mm2/s (SSU)

20 - 200 (98 - 927)

Their operating pressure and maximum shaft speed however differ 

from the values in the table above depending on the fluid type.

20 - 200 (98 - 927)

Rated Rated

Intermittent Max.

As the specific gravities of water-glycol fluids and phosphate ester type

 fluids are higher than one, an overhead reservoir is required when pumps are operated

21 (3050) 21 (3050)

Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.

Temperature Range

°C (°F)

Operating Pressure MPa (PSI)

Model Numbers

Geometric Displacement cm3/rev (cu.in./rev)

Minimum Adj. Flow cm3/rev (cu.in./rev)

Range of operating temperature and viscosities may differ

from those of petroleum based oils due to their characteristics. 

Approx. Mass kg (lbs.)

Operating Pressure MPa (PSI)

The table above shows specifications for using petroleum based oils.

 Pumps (customized design) for special fluids are also available. 

21 (3050) 21 (3050)

0 - 50 (32 - 104)

0 - 60 (32 - 140)

Design Numbers for Special Fluid (Occasion of Japanese Std. "JIS")

0 - 60 (32 - 140) 10450

日本YUKENA3H系列變量柱塞泵主要信息