PLP20.9D0-82E2-LGD/GD-N-EL-FS Casappa Gear Pump 250 bar

Product Overview

The PLP20.9D0-82E2-LGD/GD-N-EL-FS is an external gear pump from the Casappa POLARIS 20 series (Group 2). This model features a fixed-displacement, unidirectional, single-flow configuration with a displacement of 9.17 cm³/rev.

Engineered with an extruded aluminum alloy housing and pressure-balanced floating bushings, the pump houses single-piece gear, journal and shaft assemblies that deliver exceptional volumetric and overall efficiency. Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability with genuine Casappa PLP20.9D0 series pumps without any system modifications. Each pump undergoes rigorous 100% simulated duty-cycle testing on dedicated test benches to validate pressure-flow-efficiency performance curves.

Brand Disclaimer: This product is a high-quality compatible replacement engineered for full interchangeability with Casappa original equipment. All Casappa brand names and model codes are referenced solely to indicate compatibility and interchangeability. This product is manufactured by an independent producer and is not an original Casappa product.

Technical Specifications 

• Model Code: PLP20.9D0-82E2-LGD/GD-N-EL-FS (Part No. 02004747)

• Brand Series: Casappa POLARIS 20 (Group 2)

• Displacement: 9.17 cm³/rev (approx. 9 cm³/rev)

• Continuous Pressure Rating: 250 bar

• Intermittent Pressure Rating: 280 bar

• Peak Pressure: 300 bar

• Maximum Speed: 3,500 rpm

• Minimum Speed: 600 rpm

• Rotation Direction: Right-hand (clockwise/CW), field-convertible to left-hand

• Mounting Flange: European flange (E2 — Group 2)

• Drive Shaft: European tapered shaft 1:8 (code 82)

• Port Location: Side ports (L)

• Port Type: Threaded ports (GE/GD combination)

• Housing Material: Extruded aluminum alloy

• Seals: NBR (Nitrile rubber)

• Hydraulic Fluid: Mineral oil HLP

• Recommended Viscosity: 12–100 cSt

• Weight: Approx. 4.5–5.0 kg

Key Technical Advantages

1. Extruded Aluminum Housing & High Volumetric Efficiency
The extruded aluminum alloy housing houses single-piece gear, journal and shaft assemblies with a pressure balancing system that delivers the highest volumetric and overall efficiencies available. The lightweight design provides excellent pressure containment and heat dissipation while reducing overall system weight.

2. Precision Pressure-Balanced Floating Bushings
Floating bushings automatically compensate for gear end clearance under high pressure, significantly reducing internal leakage and ensuring stable flow output across the full pressure range up to 250 bar continuous.

3. Broad Speed & Temperature Operating Range
With a wide speed range from 600 to 3,500 rpm and operating temperature range from -25°C to +80°C, the pump maintains stable flow characteristics whether operating at low-speed precision control or high-speed continuous duty.

4. European Standard Interface & Drop-In Interchangeability
Featuring European flange (E2) and European tapered shaft 1:8 (82) interfaces, the pump complies with SAE/DIN international interchange standards. This product offers 100% dimensional and performance interchangeability with genuine Casappa PLP20.9D0 series pumps—install directly with zero system modifications.

5. 100% Simulated Duty-Cycle Testing
Every pump is 100% tested on dedicated hydraulic test benches under simulated real-world operating conditions—validating pressure-flow characteristics and efficiency curves across rated pressure (250 bar), peak pressure (280 bar), and full speed range—ensuring zero-defect, plug-and-play performance upon installation.

Application Areas

• Agricultural Machinery: Tractor hydraulic lift systems, implement control circuits

• Construction Equipment: Mini-excavators, loader auxiliary hydraulic systems

• Industrial Equipment: Small press hydraulic power units, machine tool hydraulics

• Mobile Equipment: Hydraulic lift platforms, material handling equipment

• Hydraulic Power Packs: Compact hydraulic power units (mini power stations)

Expert Maintenance Tips

1. Inlet Line Requirements
Keep the suction line as short and straight as possible with adequate diameter (not less than the port size) to prevent cavitation from excessive inlet resistance. Recommended suction line flow velocity: ≤1.5 m/s.

2. Fluid Cleanliness Control
Maintain system fluid cleanliness to ISO 4406 19/17/14 or better. Install a suction filter with β10 ≥ 100 and a return-line filter with ≤10 μm absolute filtration rating.

3. Coupling Alignment Precision
Ensure pump shaft-to-drive shaft coaxiality deviation ≤0.05 mm and angular deviation ≤0.5°. Use flexible couplings to compensate for installation tolerances and prevent radial loads from being transmitted to pump shaft bearings.

4. First-Start Priming & Cold Start Precautions
Before initial startup, prime the pump by bleeding air through the drain port or a loosened outlet fitting. Perform 2–3 jog starts with the outlet open (no load) until oil fills the pump cavity without air bubbles, then connect the load circuit for full operation. During cold starts when viscosity exceeds the recommended range (12–100 cSt), ensure adequate suction conditions.

5. Rotation Direction Confirmation
This model is standard configured for right-hand rotation (clockwise/CW). Always verify that the drive motor/engine rotation direction matches the pump before installation. Consult your sales representative for left-hand rotation configurations if required.

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