Pressure compensator
Pump flow decreases as system pressure approaches the preset cut-off pressure while maintaining the set pressure.
Yuken piston pumps
A Series variable displacement piston pumps
Catalogue-backed specifications for Yuken A10 to A145 pumps, with control-type guidance and quotation support from Shree Hydraulics.
8 sizesA10, A16, A22, A37, A56, A70, A90 and A145
10.0-145.0cm³/rev. geometric displacement range
600-1800r/min. shaft-speed range listed for pressure-compensator models
9 controlscontrol families identified in the catalogue availability table
Product overview
A broad size and control range
The Yuken A Series covers eight variable displacement piston-pump sizes from A10 to A145. The catalogue describes high efficiency, low noise, energy-saving characteristics and low heat generation under its stated test conditions.
Pressure ratings, control availability and model coding vary across the range. Selection must be based on the complete model designation, required control function and operating conditions.
Pressure-compensator specifications
A10 to A145 model comparison
| Models | Geometric displacement | Minimum adjustable flow | Rated pressure | Intermittent pressure |
|---|---|---|---|---|
| A10 | 10.0 cm³/rev. | 2.0 cm³/rev. | 160 kgf/cm² | 210 kgf/cm² |
| A16 | 15.8 cm³/rev. | 4 cm³/rev. | 160 kgf/cm² | 210 kgf/cm² |
| A22 | 22.2 cm³/rev. | 6 cm³/rev. | 160 kgf/cm² | 160 kgf/cm² |
| A37 | 36.9 cm³/rev. | 10 cm³/rev. | 160 kgf/cm² | 210 kgf/cm² |
| A56 | 56.2 cm³/rev. | 12 cm³/rev. | 160 kgf/cm² | 210 kgf/cm² |
| A70 | 70.0 cm³/rev. | 30 cm³/rev. | 250 kgf/cm² | 280 kgf/cm² |
| A90 | 91.0 cm³/rev. | 56 cm³/rev. | 250 kgf/cm² | 280 kgf/cm² |
| A145 | 145.0 cm³/rev. | 83 cm³/rev. | 250 kgf/cm² | 280 kgf/cm² |
The table represents the single-pump pressure-compensator specifications in the supplied catalogue. Intermittent-pressure operation is restricted by duty conditions. Consult Yuken information for the applicable operating limits.
Pilot pressure control
Provides remote control of full cut-off pressure through pilot-pressure control.
Constant power control
Output flow decreases as discharge pressure rises according to the preset input power.
Selection information
Details to confirm before quotation
Send the complete model code or a clear nameplate photograph. The series includes multiple mounting, pressure range, port, shaft and control configurations.
- A10, A16, A22, A37, A56, A70, A90 or A145
- Control-type code and pressure-adjustment range
- Flange or foot mounting
- Clockwise or requested anti-clockwise rotation
- Axial or side-port position where applicable
- Quantity, operating details and required timing
Download the A Series catalogue
Review the manufacturer document for the full control range, model designation, performance characteristics, dimensions, installation guidance and accessories.
Send your A Series requirement
Include the complete model, control code, pressure range, quantity and application details.