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{"title":"A4VSO71EO1\/30L-PPB13N00 A4VSO71LR2\/30L-PPB25N00 German piston bar axial","imgUrl":"https:\/\/img.chinax.com\/nimg\/35\/dd\/d32d0532f1879d4c55968ff91d80-200x200-1\/a4vso71eo1_2f30l_ppb13n00_a4vso71lr2_2f30l_ppb25n00_german_piston_bar_axial_excavator_motor_rexroth_brand_new_original_warranty_fo.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A4VSO71EO1\/30L-PPB13N00 A4VSO71LR2\/30L-PPB25N00","Certifiion":"ISO9001","Place of Origin":"German"}}
{"title":"German Rexroth ISO9001 Certified Piston Pump for Mobile and Industrial Hydraulic","imgUrl":"https:\/\/img.chinax.com\/nimg\/73\/0e\/c4fe575b539956cb89a167a3ff3d-200x200-1\/german_rexroth_iso9001_certified_piston_pump_for_mobile_and_industrial_hydraulic_systems_with_clockwise_or_counterclockwise_rotati.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A2FO107\/61R-NBD55 A2FO107\/61R-PPB05 A2FO107\/61R-VPB05 A2FO107\/61R-VSD55 A2FO107\/61L-VSD55","Certifiion":"ISO","Place of Origin":"German"}}
1000 - 1800 rpm (Recommended) Max. speed typically 2200 - 2400 rpm (limited by inlet conditions)
Rotation Direction
Right-hand (R) (viewed from shaft end)
Shaft Type
Splined shaft (SAE standard)
Port Connection
VPB22U (SAE flange with metric threads, with through-drive)
Mounting Flange
ISO 3019-2 (Series 32)
Seal Material
FKM (Viton®) (Standard for mineral oil and some synthetics)
Suitable Media
Mineral oils (HL, HLP), HLP-D, HVLP, HFC fluids
Media Temperature
-20 °C to +80°C (Start-up viscosity < 1000 mm²/s)
Recommended Viscosity
16 - 68 mm²/s (ISO VG 32-68)
Cleanliness Requirement
ISO 4406 20/18/15 or better
Weight
Approx. 47 - 52 kg
Related Models
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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 appliions, 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 indies 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:
Loosen the locknut
Turn the screw clockwise to increase pressure, counterclockwise to decrease
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
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...
