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R902436353 AA10VS0100DRS/32R-VPB12N00-S1439 German Rexroth variable piston pump

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R902436353 AA10VS0100DRS/32R-VPB12N00-S1439 German Rexroth variable piston pump

R902436353 AA10VS0100DRS/32R-VPB12N00-S1439 German Rexroth variable piston pump
R902436353 AA10VS0100DRS/32R-VPB12N00-S1439 German Rexroth variable piston pump

Large Image :  R902436353 AA10VS0100DRS/32R-VPB12N00-S1439 German Rexroth variable piston pump

Product Details:
Place of Origin: German
Brand Name: Rexroth
Certification: ISO
Model Number: R902436353 AA10VS0100DRS/32R-VPB12N00-S1439
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: wooden box
Delivery Time: 2 weeks
Payment Terms: Western Union,T/T,D/P,D/A,L/C
Supply Ability: 100
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R902436353 AA10VS0100DRS/32R-VPB12N00-S1439 German Rexroth variable piston pump

Description
Weight​: 69 Kg Recommended Viscosity​: 16 – 68 Mm²/s (ISO VG 32–68)
Fluid Temperature​: -20°C To +80°C Port Configuration​: VPB12
Mounting Flange​: ISO 3019-2 / Series 32​
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AA10VS0100DRS piston pump

R902436353 AA10VS0100DRS/32R-VPB12N00-S1439 German Rexroth Variable Piston Pump
Product Specifications
Parameter Specification
Order Number R902436353
Model A10VSO100DRS/32R-VPB12N00-S1439
Type Swashplate-type axial piston variable pump (Open circuit)
Displacement 100 cm³/rev
Control Type DRS (Pressure cut-off + Load Sensing)
Rated Pressure 280 bar (Continuous)
Peak Pressure 350 bar (Intermittent)
Recommended Speed 1500 - 1800 rpm (Rated operation)
Maximum Speed Approx. 2000 - 2400 rpm (Limited by suction conditions)
Rotation Direction R (Clockwise viewed from shaft end)
Mounting Flange ISO 3019-2 / Series 32
Shaft Type Splined shaft (SAE standard)
Through-drive Capability No (Code N00, cannot drive a second pump)
Port Configuration VPB12 (SAE flange, suction and pressure ports opposite)
Seal Material FKM (Fluoroelastomer, standard for mineral oil and HFC fluids)
Fluid Temperature -20°C to +80°C
Recommended Viscosity 16 - 68 mm²/s (ISO VG 32-68)
Weight Approx. 69 kg
Rexroth A10VSO variable piston pump unit
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Model Code Breakdown
  • A10VSO: Axial piston variable pump (Open circuit)
  • 100: Geometric displacement 100 cm³/rev
  • DRS: Control type (Pressure cut-off + Load Sensing)
  • 32R: Series 32, Right-hand rotation
  • VPB12N00: Mounting and connection
    • VPB12: SAE flange, suction and pressure ports opposite
    • N00: No through-drive (This model cannot be used in a tandem configuration)
  • S1439: Special manufacturing code (typically refers to a specific seal/bearing package or factory batch)
Frequently Asked Questions
1. How does DRS control work?
DRS is a combined Pressure cut-off + Load Sensing (LS) control.
  • Pressure Cut-off: When system pressure reaches the set value (e.g., 280 bar), the pump automatically reduces its displacement to maintain constant pressure.
  • Load Sensing (LS): The pump automatically senses the flow required by the actuator and delivers only the matching flow, maintaining a constant pressure differential (Δp, typically 10-20 bar) between the pump outlet and the load pressure. The advantage is energy savings and reduced heat generation from overflow.
2. Can this pump be used in a tandem configuration to drive a second pump?
No.
The N00 code in the model number explicitly indicates that this pump has no through-drive. The drive shaft is enclosed within the rear cover and cannot extend to drive a second pump. If you need to mount a gear pump or another piston pump in series, you must select a variant with a through-drive code, such as VPB22U....
3. What is the most common installation mistake?
  • Case Drain Port (L Port): Must be connected separately and directly to the tank, with a backpressure not exceeding 0.5-2 bar. It is strictly forbidden to connect it in series with the main return line (T port) or downstream of a return line filter. Doing so will cause shaft seal leakage and pump overheating.
  • Suction Conditions: The absolute pressure at the suction port (S port) must not fall below -0.8 bar (vacuum) to prevent cavitation. It is recommended to use a short, large-diameter suction line, and monitor the pressure drop across the suction filter.
4. What could be the cause of excessive pump noise or overheating?
  • Noise (Cavitation): Check for air leaks in the suction line, clogged suction filter, or oil temperature being too low (causing excessively high viscosity).
  • Overheating: The most common causes are excessive case drain backpressure (undersized or restricted drain line) or prolonged operation at high pressure with small displacement (high power loss).
5. How do I adjust the pressure setting on the DRS control?
  1. Locate the pressure adjustment screw on the control head (usually with a locknut, under a cap).
  2. Always adjust with the system running under controlled conditions and a pressure gauge installed.
  3. Loosen the locknut.
  4. Turn the screw clockwise to increase pressure, counterclockwise to decrease.
  5. Tighten the locknut and recheck the setting.
6. Do I still need an external relief valve?
Yes, absolutely. While the DRS control limits pressure, it is a control function, not a safety device. You must install a separate system safety relief valve (e.g., a DB/DBW type) in the main pressure line as a backup in case of control failure.
Disclaimer: For precise installation, commissioning, and maintenance, always refer to the official Rexroth technical documentation, specifically the data sheet RE 25700 for the A10VSO Series.

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axial piston pump,

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