Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
| Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Supply Ability | 100 |
| Delivery Time | 2 weeks |
| Packaging Details | wooden box |
| Max. Displacement | 28 cm³/rev |
| Peak Pressure | 350 bar |
| Port Size | Code 12 (Metric threads) |
| Mounting Flange | ISO 3019-2 (SAE 2-bolt) |
| Max. Speed | 3000 rpm (at full displacement) |
| Brand Name | Rexroth |
| Model Number | R910916805 AA10VS028DFR1/31R-VPA12N00 |
| Certification | ISO |
| Place of Origin | German |
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Product Specification
| Payment Terms | Western Union,T/T,D/P,D/A,L/C | Supply Ability | 100 |
| Delivery Time | 2 weeks | Packaging Details | wooden box |
| Max. Displacement | 28 cm³/rev | Peak Pressure | 350 bar |
| Port Size | Code 12 (Metric threads) | Mounting Flange | ISO 3019-2 (SAE 2-bolt) |
| Max. Speed | 3000 rpm (at full displacement) | Brand Name | Rexroth |
| Model Number | R910916805 AA10VS028DFR1/31R-VPA12N00 | Certification | ISO |
| Place of Origin | German | ||
| High Light | Rexroth piston pump with warranty ，German Rexroth AA10VS028DFR1 piston pump ，R910916805 hydraulic piston pump | ||
|
Parameter |
Specification |
|---|---|
|
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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Q1: What is the function of the "DFR1" control?
A: 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.
Q2: What does the "VPA12N00" suffix indicate?
A: 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).
Q3: What is the key difference between this A10VSO28 and the previously mentioned A10VSO18?
A: 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.
Both share the same DFR1 control type and Series 31 design.
Q4: What are the X and L ports used for?
A:
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).
Q5: Can this pump be used in a closed-loop system?
A: No. The A10VSO DFR1 is designed exclusively for open-circuit applications (pump → valve → actuator → tank). For closed-loop hydrostatic transmissions, you would need an A4VG or A2FM series unit.
Company Details
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
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