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A4VSO250EO1/30L-PPB13N00 A4VSO250 series German Rexroth axial piston pump

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A4VSO250EO1/30L-PPB13N00 A4VSO250 series German Rexroth axial piston pump

A4VSO250EO1/30L-PPB13N00 A4VSO250 series German Rexroth axial piston pump
A4VSO250EO1/30L-PPB13N00 A4VSO250 series German Rexroth axial piston pump

Large Image :  A4VSO250EO1/30L-PPB13N00 A4VSO250 series German Rexroth axial piston pump

Product Details:
Place of Origin: German
Brand Name: Rexroth
Certification: ISO
Model Number: A4VSO250EO1/30L-PPB13N00
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: wooden box
Delivery Time: 2 weeks
Payment Terms: Western Union,T/T,D/A,D/P,L/C
Supply Ability: 100
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A4VSO250EO1/30L-PPB13N00 A4VSO250 series German Rexroth axial piston pump

Description
Oil Cleanliness Requirement​: ISO 4406 18/16/13​ (NAS 1638 Class 8–9) Model​: A4VSO250EO1/30L-PPB13N00​
Type​: Swashplate-type Axial Piston Variable Pump (Open Circuit) Displacement (Vg Max)​: 250 Cm³/rev​
Control Type​: EO1 — Electro-proportional Displacement Control​ (pump Swash Angle ∝ Electric Command Signal); Min. Pilot Pressure 20 Bar For Size 250

A4VSO250EO1/30L-PPB13N00 A4VSO250 series German Rexroth axial piston pump
Product Specifications
Model A4VSO250EO1/30L-PPB13N00
Brand / Origin Rexroth / Germany
Type Swashplate-type axial piston variable pump (Open circuit)
Displacement (Vg max) 250 cm³/rev
Control Type EO1 -- Electro-proportional displacement control (pump swash angle ∝ electric command signal); min. pilot pressure 20 bar for Size 250
Nominal Pressure 350 bar (35 MPa) Continuous
Peak / Maximum Pressure 400 bar (40 MPa) Intermittent
Maximum Speed (nₘₐₓ) 1500 rpm @ Vg max (Size 250)
Recommended Speed 1000 - 1500 rpm
Theoretical Flow @ 1500 rpm ≈ 375 L/min (Q = n × Vg / 1000)
Rotation Direction L -- Counter‑clockwise (viewed from shaft end)
Mounting Flange ISO 3019‑2 / Series 30, 4‑bolt (Code PP)
Through‑drive Yes -- PPB indicates through‑drive capable (N00 = no auxiliary pump fitted)
Port Configuration PPB13 -- SAE flange side ports, pressure & tank ports 90° apart (no extra B1 port)
Seal Material FKM (Fluoroelastomer / Viton, standard for mineral oil HLP)
Case Drain Two case drain ports -- must be routed to tank < 2 bar backpressure
Recommended Oil Viscosity 16 - 100 mm²/s (optimal ISO VG 46 at operating temp)
Oil Cleanliness Requirement ISO 4406 18/16/13 (NAS 1638 Class 8-9)
Net Weight (Approx.) ≈ 145-150 kg (dry, excl. coupling)
Package / Condition Original factory wooden crate, new unused, German import
Salable / Supply Region Global -- Available via Rexroth authorized industrial hydraulics distributors (Europe, Americas, Asia-Pacific incl. China mainland)
Rexroth A4VSO250EO1 axial piston pump product image
Related Part Numbers
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R910904555 A4VSO71LR2/10R-PPB13N00
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Model Code Breakdown
A4VSO -- Axial piston variable pump, open circuit
250 -- Displacement 250 cm³/rev
EO1 -- Electro‑proportional displacement control with low pilot pressure requirement (min. ~20 bar pilot for Size 250)
30 -- Design Series 30
L -- Counter‑clockwise rotation (viewed from shaft end)
PPB13N00
  • PP -- Through‑drive capable, ISO 4‑bolt flange
  • B13 -- SAE flange side ports (P & T 90° apart)
  • N00 -- No auxiliary pump / no special option on through‑drive
Frequently Asked Questions (FAQ)
1. What does EO1 (electro‑proportional displacement) control do?
EO1 uses a built‑in proportional solenoid with LVDT position feedback to vary the pump's swash plate angle -- and thus output flow -- in direct proportion to an external electrical command signal (typically ±10 V, 4-20 mA, or PWM via an external amplifier). It provides no pressure limiting function; system pressure is load‑determined. A separate relief valve is required for over‑pressure protection.
2. What is the difference between EO1 and EO2 control?
Both are electric proportional displacement controls. Key difference is pilot pressure requirement:
  • EO1: Min. pilot pressure ≈ 20 bar (Sizes 40-250), suitable for Size 250 and smaller.
  • EO2: Min. pilot pressure ≈ 50-100 bar (Sizes 40-1000), typically specified for larger frames (Size 355/500+) or where higher control stiffness is needed.
For A4VSO250, EO1 is the standard electro‑proportional option.
3. Can I mount a second pump on the back?
Yes. The PPB code indicates through‑drive capability. An A4VSO (same or smaller size) or compatible gear pump can be flange‑mounted on the rear to form a tandem pump. N00 = no auxiliary gear pump pre‑fitted, through‑drive shaft is present.
4. What are critical installation points?
  • Case Drain (Leakage Line): Plumb directly to tank, backpressure ≤ 1.5-2 bar. Never tee into main return.
  • Suction Line: Keep short & large‑diameter; absolute inlet pressure ≥ 0.8 bar to avoid cavitation. Use 100 µm suction strainer.
  • Pilot Pressure (EO1): Supply pilot oil (typically from pump outlet or separate source) at ≥ 20 bar to the EO1 pilot port.
  • Rotation Check: "L" = counter‑clockwise from shaft end -- verify prime mover direction before coupling.
  • Bleed: Fill case and suction with oil, vent before first start‑up.
5. Does EO1 need a separate amplifier?
Yes. The pump has the solenoid and LVDT onboard but requires an external proportional amplifier (e.g. Rexroth VT 5035‑1X or PLC analog output card with current‑controlled driver) to supply the command signal and 24 V DC excitation. Amplifier is ordered separately.
6. Is a system relief valve still required?
Yes, absolutely. EO1 controls flow/displacement only -- it does not limit pressure. Install a properly sized system safety relief valve (e.g. DB type) set above maximum working pressure + margin.
7. What oil cleanliness is required?
Maintain hydraulic oil at ISO 4406 18/16/13 (NAS 1638 Class 8 -9) minimum using a return‑line filter β₁₀ ≥ 200 (10 µm nominal). Contamination is the primary cause of premature A4VSO pump wear.

Tag:

rexroth piston,

axial piston pump,

electric piston pump

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Tel: +8615280488899

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