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R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184 Rexroth German piston pump

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R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184 Rexroth German piston pump

R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184 Rexroth German piston pump
R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184 Rexroth German piston pump

Large Image :  R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184 Rexroth German piston pump

Product Details:
Place of Origin: German
Brand Name: Rexroth
Certification: ISO
Model Number: R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: Germany
Delivery Time: 2 weeks
Payment Terms: Western Union,T/T,D/P,D/A,L/C
Supply Ability: 100
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R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184 Rexroth German piston pump

Description
Order Number​: R902520810 Model​: AA10VSO71DRS/32R-VPB22U00E-S2184
Nominal Displacement​: 71 Cm³/rev​ Speed Range​: 1000 – 1800 Rpm​ (Recommended)
Media Temperature​: -20°C To +80°C​ (Start-up Viscosity < 1000 Mm²/s)
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Rexroth German piston pump

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AA10VSO71DRS piston pump

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32R-VPB22U00E-S2184 piston pump

R902520810 AA10VSO71DRS/32R-VPB22U00E-S2184 Rexroth German Piston Pump
Technical Specifications
Order NumberR902520810
ModelAA10VSO71DRS/32R-VPB22U00E-S2184
TypeVariable displacement axial piston pump (swashplate design, open circuit)
Nominal Displacement71 cm³/rev
Control TypeDRS (Pressure Cut-off + Load Sensing / Flow Control)
Pressure Rating280 bar (Continuous)
350 bar (Peak, intermittent)
Speed Range1000 - 1800 rpm (Recommended)
Max. speed typically 2200 - 2400 rpm (limited by inlet conditions)
Rotation DirectionRight-hand (R) (viewed from shaft end)
Shaft TypeSplined shaft (SAE standard)
Port ConnectionVPB22U (SAE flange with metric threads, with through-drive)
Mounting FlangeISO 3019-2 (Series 32)
Seal MaterialFKM (Viton®) (Standard for mineral oil and some synthetics)
Suitable MediaMineral oils (HL, HLP), HLP-D, HVLP, HFC fluids
Media Temperature-20 °C to +80°C (Start-up viscosity < 1000 mm²/s)
Recommended Viscosity16 - 68 mm²/s (ISO VG 32-68)
Cleanliness RequirementISO 4406 20/18/15 or better
WeightApprox. 47 - 52 kg
Rexroth AA10VSO71DRS piston pump technical diagram and components
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Frequently Asked Questions
1. What is the difference between this (S2184) and the previous model (S2183)?
The S2183 and S2184 are functionally identical twins in terms of core performance (pressure, flow, control). The difference lies in internal configuration details (e.g., specific seal batch, bearing lot, or minor manufacturing revision). For 99% of applications, they are direct replacements for each other, but always check the specific datasheet for any special fluid compatibility notes.
2. What is DRS control, and how does it work?
DRS is a combined pressure-flow control with load sensing (LS).
  • Pressure Control: Limits system pressure to a set maximum (like a DR control)
  • Flow Control (LS): The pump automatically adjusts its swashplate angle to deliver only the flow required by the actuators, maintaining a constant pressure differential (Δp) across the control orifice. This results in significant energy savings compared to constant flow pumps
3. Can I mount an additional pump on the back?
Yes. The code VPB22U indicates this pump has a through-drive shaft (through-drive). You can mount a second pump (e.g., a gear pump for pilot flow or a second circuit) directly onto the back flange of this unit.
4. What are the critical installation precautions?
  • Case Drain (L port): Must be connected separately to tank with minimal backpressure (max 2-3 bar). Do not tee it into the main return line. This is critical for flushing heat and preventing seal/bearing failure
  • Suction Conditions: Ensure inlet pressure at port S is ≥ -0.8 bar (absolute) to avoid cavitation. Use short, large-diameter suction lines
  • Rotation: Confirm motor rotation matches the pump's "R" (clockwise) designation. Running backwards can destroy the pump
5. Why is my pump noisy or overheating?
  • Noise: Usually caused by cavitation. Check suction filter, inlet line for leaks, or oil viscosity being too high at startup
  • Overheating: Often due to excessive case pressure (blocked or undersized case drain line) or operating for long periods at high pressure with small displacement (high power loss)
6. How do I adjust the pressure setting?
The DRS control has a pressure limiter screw (usually under a cap on the control housing). Always adjust under controlled conditions with a pressure gauge:
  1. Loosen the locknut
  2. Turn the screw clockwise to increase pressure, counterclockwise to decrease
  3. Tighten the locknut and re-check the setting
7. Is an external relief valve still needed?
Yes. While the DRS control limits pressure, it is not a safety valve. You must install a separate system relief valve (e.g., a DB/DBW type) in the main line as a safety backup against control failure.
8. What is the difference between DR and DRS?
  • DR: Only pressure control (constant pressure variable pump)
  • DRS: Pressure control + Load Sensing. DRS adds the ability to match flow to demand, which is more energy-efficient for systems with varying flow requirements
Disclaimer: For precise installation and commissioning, always refer to the official Rexroth technical data sheet RE 25700 for A10VSO Series 32 pumps.

Tag:

rexroth piston,

axial piston pump,

electric piston pump

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