Product Overview
The X1P2002FIIA, X1P2902FIIA, X1P3102FIIA, X1P3202FIIA, and X2P5552ICBA, along with the X1P and X2P series, are high-performance external gear pumps from the Italian manufacturer VIVOIL (Oleodinamica Vivolo srl). Founded in 1985 and headquartered in Bologna, Italy, VIVOIL is a globally recognized manufacturer of hydraulic gear pumps, gear motors, and gear flow dividers.
The X1P series belongs to Group 1 (small frame) with displacements ranging from 0.91 to 9.88 cc/rev. This series features a high-strength aluminum housing that delivers excellent heat dissipation and significant weight reduction, with rated pressure of 250 bar and peak pressure up to 300 bar.
The X2P series belongs to Group 2 (medium frame) with displacements ranging from 4.2 to 39.6 cc/rev and SAE A flange mounting (pilot Ø82.5 mm). This series is designed for medium to high flow applications with peak pressure up to 300 bar.
VIVOIL gear pumps feature a modular design with mounting flange, shaft type, and port dimensions fully compliant with genuine VIVOIL specifications. All products are hand-assembled and individually tested at the Bologna, Italy facility.
Interchangeability: The X1P/X2P series is manufactured to exacting VIVOIL original design standards. Mounting flange, shaft type, port dimensions, and rotation direction are fully compliant with genuine VIVOIL specifications, enabling 100% drop-in replacement without any system modification.
Technical Specifications
X1P2002FIIA
Brand: VIVOIL (Italy)
Series: XV-1P / Group 1
Displacement: 2.08 – 2.20 cm³/rev
Rated working pressure: 250 bar
Peak pressure: 290 bar
Maximum speed: 6,000 rpm
Theoretical flow (@1,500 rpm): 3.30 L/min
Rotation: Right-hand (clockwise)
Mounting flange: European standard, pilot Ø25.4 mm
Shaft type: Tapered 1:8 with key
Port connection: Flange type
Net weight: 1.03 kg
Housing material: Aluminum
Media compatibility: Mineral-based hydraulic oil HLP – HV
Operating temperature range: -20°C to +60°C
X1P2902FIIA
Brand: VIVOIL (Italy)
Series: XV-1P / Group 1
Displacement: 4.90 – 4.94 cm³/rev
Rated working pressure: 250 bar
Peak pressure: 300 bar
Maximum speed: 6,000 rpm
Theoretical flow (@1,500 rpm): Approx. 7.4 L/min
Rotation: Right-hand (clockwise)
Mounting flange: European standard, pilot Ø25.4 mm
Shaft type: Tapered 1:8
Port connection: Flange type
Net weight: Approx. 1.1 – 1.2 kg
Housing material: Aluminum
Media compatibility: Mineral-based hydraulic oil
Operating temperature range: -20°C to +80°C
X1P3102FIIA
Brand: VIVOIL (Italy)
Series: XV-1P / Group 1
Displacement: 5.85 – 5.90 cm³/rev
Rated working pressure: 250 bar
Peak pressure: 300 bar
Maximum speed: 5,000 rpm
Theoretical flow (@1,500 rpm): Approx. 8.8 L/min
Rotation: Right-hand (clockwise)
Mounting flange: European standard, pilot Ø25.4 mm
Shaft type: Tapered 1:8
Port connection: Flange type
Net weight: Approx. 1.2 – 1.3 kg
Housing material: Aluminum
Media compatibility: Mineral-based hydraulic oil HLP – HV
Operating temperature range: -20°C to +60°C
X1P3202FIIA
Brand: VIVOIL (Italy)
Series: XV-1P / Group 1
Displacement: 6.50 cm³/rev
Rated working pressure: 250 bar
Peak pressure: 300 bar
Maximum speed: 5,000 rpm
Theoretical flow (@1,500 rpm): Approx. 9.8 L/min
Rotation: Right-hand (clockwise)
Mounting flange: European standard, pilot Ø25.4 mm
Shaft type: Tapered 1:8
Port connection: Flange type
Net weight: 1.3 kg
Housing material: Aluminum
Media compatibility: Mineral-based hydraulic oil HLP – HV
Operating temperature range: -20°C to +60°C
X2P5552ICBA
Brand: VIVOIL (Italy)
Series: XV-2P / Group 2 / SAE A Type
Displacement: 22.00 – 22.80 cm³/rev
Rated working pressure: 200 bar
Peak pressure: 240 bar
Maximum speed: 3,000 rpm
Theoretical flow (@1,500 rpm): Approx. 34 L/min
Rotation: Right-hand (clockwise)
Mounting flange: SAE A flange, pilot Ø82.5 mm
Shaft type: SAE J498 9T splined shaft
Inlet port: 3/4″ BSP
Outlet port: 1/2″ BSP
End cover: A = Standard
Housing material: Aluminum (cast iron flange optional)
Media compatibility: Mineral-based hydraulic oil
Key Technical Advantages
1. High-Strength Aluminum Housing and Lightweight Design
The high-strength aluminum housing delivers exceptional structural integrity while significantly reducing pump weight (X1P series only approx. 1.0-1.3 kg). The aluminum material offers excellent thermal conductivity, rapidly dissipating operating heat.
2. Double-Arc Sinusoidal Tooth Profile for Quiet Operation
The double-arc sinusoidal tooth profile design effectively eliminates trapped oil, achieving operating noise ≤65 dB with low pressure pulsation and smooth operation. This low-noise characteristic is particularly valuable in noise-sensitive work environments.
3. Floating Side Plate Clearance Compensation for High Volumetric Efficiency
The built-in floating side plate clearance compensation mechanism automatically adapts to clearance variations under different operating pressures and temperatures, minimizing internal leakage with volumetric efficiency ≥93% and low temperature rise.
4. Exceptional High-Pressure Capability
The X1P series achieves peak pressure up to 300 bar, while the X2P series also reaches 300 bar. This wide pressure range enables flexible adaptation to various medium and high-pressure hydraulic systems.
5. Modular Design and Flexible Configuration
The modular design offers multiple flange types (European standard / SAE A), various shaft types (tapered 1:8 / splined / milled), multiple port options (BSPP / UNF / flange), and rotation direction options (clockwise / counter-clockwise). Rotation direction can be reversed without adding any components.
6. Flexible Multi-Pump Configurations
Supports multi-pump combinations across X1P, X2P, and X3P series. Tandem configurations enable multiple flow outputs to meet diverse flow and pressure requirements of complex hydraulic systems.
7. Italian Manufacturing and Hand-Assembly
All VIVOIL products are manufactured in Bologna, Italy, using 5-axis CNC machining, with each unit hand-assembled and individually tested. Products are ISO 9001:2015 certified.
Application Areas
Forklifts & Material Handling Equipment – Reliable power source for hydraulic lifting and steering systems
Compact Excavators & Construction Machinery – Hydraulic power output for space-constrained applications
Agricultural Machinery – Tractors, transplanters, harvesters, and other agricultural equipment
Municipal Vehicles – Sweepers, garbage compactors, and other municipal hydraulic systems
Industrial Hydraulic Power Packs – Machine tools, injection molding machines, and other stationary industrial equipment
Lifting Platforms & Aerial Work Platforms – Safe and reliable lifting hydraulic systems
Lubrication Systems – Centralized lubrication and cooling circulation for industrial equipment
Micro Hydraulic Systems – Medical equipment, precision instruments, and other low-flow applications
Expert Maintenance Tips
1. Fluid Cleanliness Management
VIVOIL gear pumps are sensitive to fluid contamination. Recommended fluid cleanliness: ISO 4406 18/16/13 (NAS 1638 Class 9) or higher. Install a suction filter with minimum 100 μm filtration and a return line filter with 10 μm filtration.
2. Fluid Viscosity & Temperature Control
Mineral-based hydraulic oils conforming to HLP or HV standards are recommended. Operating viscosity should be maintained within 10 – 800 cSt. Optimal operating temperature: 40 – 60°C, with allowable range of -20°C to +80°C. For cold starts, ensure fluid temperature is above -10°C to prevent cavitation due to excessive viscosity.
3. Rotation Direction Verification and Reversal
Always verify the pump rotation direction indicator before start-up (X1P/X2P series standard configurations include R = right-hand/clockwise and L = left-hand/counter-clockwise options). VIVOIL gear pump rotation direction can be reversed without adding any components (except special versions) – refer to the product catalog for instructions.
4. Alignment During Installation
Ensure concentricity between pump shaft and drive motor shaft does not exceed 0.05 mm, with angular misalignment within 0.5°. Flexible couplings are recommended to compensate for minor misalignment. When installing the coupling, avoid applying axial force and never use a hammer.
5. First Start-Up and Bleeding
Before initial start-up, pre-lubricate the pump by filling clean hydraulic oil through the housing ports. After start-up, run the pump in no-load operation for a few seconds to ensure sufficient lubrication. The pump must be bled before building up system pressure. Never allow the pump to run without oil.
6. Periodic Maintenance
Replace hydraulic oil and filters every 2,000 operating hours or annually. Regularly monitor pump body temperature (surface temperature should not exceed 80°C) and listen for abnormal noise increases, which may indicate internal wear or cavitation. When servicing aluminum housing pumps, take extra care to avoid damaging sealing surfaces during disassembly.
