PLP20.14-03S1-LBE/BC/20.6.3-LBC-S7D Casappa Gear Pump 315 bar

Product Overview

The PLP20.14-03S1-LBE/BC/20.6.3-LBC-S7D is a tandem external gear pump from the Casappa POLARIS 20 series (Group 2). This configuration features a primary section with 14.53 cm³/rev displacement and a secondary section with 6.61 cm³/rev displacement.

Engineered with an aluminum alloy housing and floating sleeve bearings, the pump delivers stable flow, high efficiency, and low noise operation for both mobile and stationary hydraulic applications. Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability with genuine Casappa PLP20 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: PLP20.14-03S1-LBE/BC/20.6.3-LBC-S7D

• Brand Series: Casappa POLARIS 20 (Group 2)

• Primary Displacement: 14.53 cm³/rev

• Secondary Displacement: 6.61 cm³/rev

• Continuous Pressure Rating: 250 bar

• Intermittent Pressure Rating: 280 bar

• Peak Pressure: 300 bar

• Maximum Speed: 3,500 rpm

• Minimum Speed: 500 rpm

• Rotation Direction: Right-hand (clockwise / CW)

• Mounting Flange: SAE “A” 2-bolt flange (Ø82.55 mm)

• Drive Shaft: SAE “A” splined shaft (9 teeth, Ø15.5 mm)

• Port Location: Side ports

• Port Type: German 4-bolt flange (Inlet: 20/LK40/M6; Outlet: 15/LK35/M6)

• Housing Material: Aluminum alloy

• Seals: NBR (Nitrile rubber)

• Hydraulic Fluid: Mineral oil HLP

• Recommended Viscosity: 12–100 cSt

• Operating Temperature Range: -25°C to +80°C

• Weight: Approx. 5.5 kg

Key Technical Advantages

1. High Volumetric Efficiency & Stable Flow Delivery
Precision-machined gear pairs combined with floating bushing compensation technology minimize internal leakage, ensuring stable flow output across the full pressure range with superior volumetric efficiency compared to同类 products.

2. Lightweight Aluminum Alloy Construction
The high-strength aluminum alloy housing delivers excellent pressure containment while significantly reducing overall pump weight—an ideal solution for weight-sensitive mobile hydraulic applications.

3. Broad Speed Operating Range
With a wide speed range from 500 to 3,500 rpm， the pump maintains stable flow characteristics whether operating at low-speed precision control or high-speed continuous duty, providing exceptional versatility across diverse applications.

4. Integrated Tandem Pump Configuration
The dual-section design (14.53 cc primary + 6.61 cc secondary) delivers two independent hydraulic flows from a single drive input, significantly simplifying hydraulic system architecture while saving installation space and cost.

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, peak pressure, and full speed range—ensuring zero-defect, plug-and-play performance upon installation.

Application Areas

• Agricultural Machinery: Tractor hydraulic lift systems, combine harvester steering and implement drives

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

• Industrial Equipment: Injection molding machine hydraulic power units, metal forming equipment lubrication and cooling systems

• Mobile Equipment: Aerial work platforms, material handling equipment hydraulic power packs

• Tandem Pump Applications: Systems requiring simultaneous independent hydraulic flow to two separate actuators or circuits

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 Procedure
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.

5. Viscosity Monitoring
Recommended operating viscosity: 12–100 cSt. During cold starts when viscosity exceeds this range, ensure adequate suction conditions (e.g., preheat the oil or reduce startup speed) to prevent cavitation damage.

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