PLP10.3.15D0-30S0-LGC-N-EL Casappa Gear Pump 290 Bar

Product Overview

The PLP10.3.15D0-30S0-LGC-N-EL is a Group 1 external gear pump from the CASAPPA POLARIS PLP10 Series, delivering 3.34 cm³/rev (0.20 in³/rev) displacement with continuous operating pressure of 260 bar, intermittent pressure of 280 bar, and peak pressure up to 290 bar at speeds ranging from 650 to 4000 rpm. Part of CASAPPA’s POLARIS platform — backed by over fifty years of hydraulic component design and manufacturing experience — the pump features an aluminum alloy housing, precision-ground gears, and a floating bushing architecture.

The PLP10.3.15D0-30S0-LGC-N-EL is configured with an SAE “A-A” 2-bolt mounting flange (pilot diameter 50.8 mm), SAE “AA” cylindrical shaft (Ø12.7 mm × 19 mm long), BSPP 3/8″ suction and pressure ports, Perbunan (NBR) seals, and aluminum front/rear covers. Mounting and connection dimensions follow SAE and European standards, enabling drop-in interchangeability with equivalent Group 1 gear pumps from MARZOCCHI, VIVOLO, and Bondioli without piping or mounting modification.

Every unit undergoes 100% simulated-condition testing before shipment, covering pressure hold, flow characteristics, volumetric efficiency, and internal leakage verification.

Technical Specifications 

PLP10.3.15D0-30S0-LGC-N-EL:

• Model: PLP10.3.15D0-30S0-LGC-N-EL

• Series: CASAPPA POLARIS PLP10 Series, Group 1 External Gear Pump

• Displacement: 3.34 cm³/rev (0.20 in³/rev)

• Continuous Pressure (P1): 260 bar (3770 psi)

• Intermittent Pressure (P2): 280 bar (4060 psi)

• Peak Pressure (P3): 290 bar (4205 psi)

• Max Speed: 4000 rpm

• Min Speed: 650 rpm

• Theoretical Flow (@1800 rpm): Approximately 6.0 L/min

• Direction of Rotation: Clockwise (standard)

• Shaft End: Cylindrical SAE “AA” (Ø12.7 mm × 19 mm length)

• Mounting Flange: SAE “A-A” 2-bolt, pilot diameter 50.8 mm

• Suction Port: BSPP female 3/8″

• Pressure Port: BSPP female 3/8″

• Seal Material: Perbunan (NBR)

• Housing Material: Aluminum alloy (aluminum front/rear covers)

• Weight: Approximately 2.3 lb (approx. 1.04 kg)

• Port Orientation: Side

Specifications sourced from CASAPPA POLARIS PLP10 Series official technical datasheets and authorized distributor documentation.

Key Technical Advantages

1. Floating Bushing Pressure Balancing for High Volumetric Efficiency

The PLP10 Series utilizes a floating bushing structure in which gear shafts are supported by sleeve bearings. Under operating pressure, the bushing face automatically presses against the gear faces, providing axial gap compensation. This mechanism minimizes internal leakage and maintains high volumetric efficiency throughout the pump’s service life. Unlike fixed-clearance gear pumps, the floating bushing design self-compensates for minor end-face wear, significantly retarding efficiency degradation.

2. Aluminum Housing for Lightweight High-Pressure Performance

The pump body is manufactured from high-strength aluminum alloy, achieving the structural rigidity necessary to withstand 290 bar peak pressure while keeping total pump weight at approximately 1 kg. This is substantially lighter than equivalent cast iron gear pumps, making it ideal for weight-sensitive mobile equipment such as tractors, skid steer loaders, and aerial work platforms — every kilogram saved translates to improved fuel economy and greater payload capacity.

3. Precision-Ground Gears for Low Noise and Pulsation

Gears are precision-ground from high-strength alloy steel with optimized tooth profiles to minimize pressure shock from trapped oil. Precision gear meshing directly determines flow pulsation amplitude, which in turn affects system noise levels. The PLP10 Series maintains smooth flow output even at its 4000 rpm maximum speed, providing a quieter working environment and reducing piping vibration and component fatigue.

4. Standardized Interfaces for Drop-In Interchangeability

The SAE “A-A” 2-bolt flange, SAE “AA” cylindrical shaft, and BSPP 3/8″ ports of the PLP10.3.15D0-30S0-LGC-N-EL are industry-standard Group 1 gear pump interfaces. The pump directly replaces equivalent products from MARZOCCHI, VIVOLO, and Bondioli without modifying mounting plates, couplings, or piping connections. For equipment repair and spare parts replacement, this capability significantly reduces downtime and inventory complexity.

Application Areas

• Agricultural Machinery: Compact tractor hydraulic hitch systems, mower hydraulic drives, sprayer hydraulic power units

• Mobile Equipment: Skid steer loader auxiliary hydraulic circuits, compact excavator pilot oil supply

• Industrial Hydraulics: Machine tool coolant pump drives, hydraulic clamping power units

• Municipal Vehicles: Street sweeper hydraulic power units, compact water truck implements

• General Replacement: Direct drop-in replacement for MARZOCCHI, VIVOLO, Bondioli and equivalent Group 1 gear pumps

Expert Maintenance Tips

1. Installation Concentricity Control

Maintain installation concentricity between pump and drive motor within 0.1 mm. A flexible coupling is mandatory to compensate for minor angular misalignment. Never allow the pump shaft to bear radial or axial loads. The 12.7 mm shaft diameter of the PLP10 Series — among the smaller shaft specifications in Group 1 gear pumps — is particularly sensitive to installation eccentricity. Excessive concentricity deviation causes shaft seal leakage and offset bushing wear, leading to housing overheating and reduced flow output.

2. Suction Line Configuration Requirements

Maintain absolute suction pressure at ≥0.5 bar. Suction lines should be short, large-diameter, and unrestricted. The PLP10 Series features side port orientation; connect the suction line from the reservoir bottom or side to avoid air pockets. Install a 70–150 μm mesh filter at the suction inlet to protect internal components from large particulate contamination.

3. Rotation Direction Verification

Verify pump rotation direction before startup. The PLP10.3.15D0-30S0-LGC-N-EL standard configuration is clockwise rotation (viewed from shaft end). The “LGC” code in some CASAPPA product coding systems may correspond to specific rotation configurations; always confirm against the rotation arrow marked on the pump body before installation. Incorrect rotation prevents proper suction and may damage internal seals.

4. Fluid Cleanliness and Operating Temperature

Use anti-wear hydraulic oil with viscosity range 12–100 cSt; approximately 46 cSt is optimal. Maintain fluid cleanliness at ISO 4406 19/17/14 or better. The extremely tight floating bushing clearances in the PLP10 Series are sensitive to particulate contamination. Maintain operating oil temperature between 10°C and 60°C. Low temperatures increase viscosity and impede suction; high temperatures accelerate seal aging and oil oxidation.

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