R910916805 AA10VS028DFR1/31R-VPA12N00 German Rexroth piston pump
Price:
Negotiable
MOQ:
1
Delivery Time:
2 weeks
Brand:
Rexroth
Product Description
R910916805 AA10VS028DFR1/31R-VPA12N00 German Rexroth Piston Pump
High-performance axial piston variable pump with advanced pressure and flow control for industrial hydraulic systems.
Technical Specifiions
| Manufacturer / Series | Rexroth A10VSO Series 31 |
|---|---|
| Order Code | R910916805 |
| Full Model | AA10VS028DFR1/31R-VPA12N00 |
| Pump Type | Axial Piston Variable Pump (Swashplate Design, Open Circuit) |
| Control Type | DFR1 (Pressure & Flow Control / Load Sensing) |
| Max. Displacement | 28 cm³/rev |
| Nominal Pressure | 280 bar |
| Peak Pressure | 350 bar |
| Nominal Size | NG 28 |
| Rotation Direction | Right-hand (R, viewed from shaft end) |
| Shaft Type | Tapered shaft 1:5 with parallel key (DIN 6885) |
| Ports | S (Suction), B (Pressure), L (Case Drain), X (LS Control) |
| Port Size | Code 12 (Metric threads) |
| Mounting Flange | ISO 3019-2 (SAE 2-bolt) |
| Max. Speed | 3000 rpm (at full displacement) |
| Max. Flow | ~84 L/min (at 3000 rpm) |
| Seal Material | FKM (Viton) |
| Hydraulic Fluid | Mineral oils (HL, HLP), HETG, HEES, HFDU |
| Operating Temperature | -20°C to +80°C |
| Weight | Approx. 17.8 kg |
| Country of Origin | Germany |
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Frequently Asked Questions
What is the function of the "DFR1" control?
The DFR1 is a combined Pressure and Flow Controller. It provides two key functions:
- Pressure Limiting: Acts as a pressure compensator, destrokeing the pump when system pressure reaches the set value.
- Load Sensing (Flow Control): Automatically adjusts displacement to maintain a constant pressure differential (Δp) across a downstream orifice, providing load-independent flow control for improved energy efficiency.
What does the "VPA12N00" suffix indie?
This code defines the mechanical configuration:
- V: FKM (Viton) seals, offering superior chemical and temperature resistance.
- P: Tapered shaft (1:5) with a parallel key.
- A12: Port size code 12 (metric threads).
- N00: No through-drive (solid shaft end, cannot mount additional pumps on the shaft).
What is the key difference between this A10VSO28 and the previously mentioned A10VSO18?
The primary difference is the displacement size:
- A10VSO28: 28 cm³/rev, providing higher flow output (~84 L/min vs ~59 L/min at same speed).
- A10VSO18: 18 cm³/rev, smaller size for lower flow requirements.
What are the X and L ports used for?
- X Port (Control): Load-Sensing (LS) Feedback. It connects to the downstream system to sense the load pressure, allowing the pump to adjust its displacement to maintain the set Δp.
- L Port (Case Drain): Must be connected directly to the tank. It relieves internal leakage pressure to protect the shaft seal (max backpressure typically 2 bar).
Can this pump be used in a closed-loop system?
No. The A10VSO DFR1 is designed exclusively for open-circuit appliions (pump → valve → actuator → tank). For closed-loop hydrostatic transmissions, you would need an A4VG or A2FM series unit.
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Get in Touch
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Company
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
Location
Nan'an, Fujian Province, China
Contact Person
liyun