Model code — A10VSO28DRG/31R-VSA12N00
Decoded against the official ordering code of this series (series 31 uses 13 positions including the version position). This unit reads as follows:
| Field | Value | Meaning |
|---|---|---|
| 01 Version | — | omitted |
| Axial piston unit | A10VO | A10VO swashplate variable pump (open circuit) |
| Size (NG) | 28 | nominal size NG28 |
| Control | DRG | pressure control with remote adjustment |
| Series | 31 | series 31 (heavy duty 280 / 350 bar) |
| Rotation | R | clockwise, viewed from the shaft end |
| Seals | V | FKM fluoroelastomer (modern standard) |
| Drive shaft | S | spline, ISO 3019-1 / ANSI B92.1a |
| Mounting flange | A | ISO 3019-2 metric 2-hole |
| Work ports | 12 | metric flange seat, fixed metric threads (DIN 13) |
| Through drive | N00 | no through drive |
| Solenoid connector | — | omitted — none |
Product overview
New aftermarket A10VSO axial piston variable pump, Series 31, swashplate design for open circuit. Complete model code: A10VSO28DRG/31R-VSA12N00. Size NG28, nominal displacement 28 cm³/rev. Nominal pressure 280 bar, maximum pressure 350 bar. Direction of rotation R (clockwise, viewed on the drive shaft). Quality checked before shipping. Contact us to confirm exact configuration and availability before ordering.
Control: DRG pressure controller, remotely controlled
For the remote controlled pressure controller, the pressure limitation is performed using a separately arranged pressure relief valve. Therefore, any pressure control value under the pressure set on the pressure controller can be regulated. A pressure relief valve is externally piped up to port X for remote control; this relief valve is not included in the scope of delivery of the DRG control.
- Basic position in depressurized state: Vg max.
- Setting range for pressure control: 50 to 280 bar — standard 280 bar.
- Setting range for differential pressure: 10 to 22 bar — standard 20 bar (a standard setting of 20 bar Δp results in a pilot oil flow of approx. 1.5 l/min at port X).
- As a separate pressure relief valve we recommend a direct operated, hydraulic or electric proportional one, suitable for the quantity of pilot fluid mentioned above; the maximum line length should not exceed 2 m.
- Unloading port X to the reservoir results in a zero stroke (standby) pressure which is approx. 1 to 2 bar higher than the defined differential pressure Δp.
Other control options on this size
This 28 cm³ Series 31 pump is also available with other controls:
- A10VSO28DR/31R-PPA12N00 — DR pressure controller
- A10VSO28DFR/31R-PPA12N00 — DFR pressure flow controller
- A10VSO28DFR1/31R-PPA12N00 — DFR1 pressure flow controller
- A10VSO28DFLR/31R-PKC62N00 — DFLR pressure, flow and power controller
- A10VSO28DG/31R-VSA12N00 — DG two-point control, direct operated
Ordering
Send us the complete model code from the nameplate of your existing pump, or the machine model — we will confirm the correct size, control and configuration before you order.
Series overview
All models in this series: A10VO Series 31. Parent range: A10VO Piston Pump.
Not sure about the fit? Contact us with the full nameplate code and we will confirm before you order.
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