X1P1802FBBA Vivoil Gear Pump 1.56cc 250bar

Product Overview

The Vivoil X1P1802FBBA is a compact Group 1 unidirectional fixed-displacement external gear pump manufactured by Vivoil Oleodinamica Vivolo in Italy.

Vivoil’s official product page defines the Group 1 platform as a unidirectional hydraulic pump with external gears and confirms the availability of clockwise and counterclockwise configurations, multiple shaft options, sealing options, port arrangements and pressure-valve options. The XP105 configuration uses a Ø25.4 mm flange.

The specific X1P1802FBBA corresponds to Vivoil’s 18 displacement code and has a verified geometric displacement of approximately 1.56 cm³/rev in the standard FBBA configuration. Public technical data specifies 250 bar maximum working pressure, 290 bar peak pressure and 700–6000 rpm.

The standard FBBA configuration uses a 4-bolt DIN Ø25.4 mm mounting flange, 1:8 tapered keyed shaft and G 3/8 BSPP suction and pressure ports. The published pump mass is approximately 1.01 kg.

For replacement engineering, displacement alone is not sufficient. Rotation, mounting flange, shaft taper, key geometry, port standards, shaft extension and overall installation dimensions must all be matched.

Technical Specifications

X1P1802FBBA

• Manufacturer: Vivoil Oleodinamica Vivolo
• Series: XV-1P / XP105
• Product Type: Unidirectional External Gear Pump
• Pump Type: Fixed Displacement
• Displacement Code: 18
• Actual Geometric Displacement: 1.56 cm³/rev
• Nominal Series Designation: XV-1P/1.7
• Maximum Working Pressure: 250 bar
• Peak Pressure: 290 bar
• Minimum Speed: 700 rpm
• Maximum Speed: 6000 rpm
• Rotation: Right-Hand / Clockwise
• Mounting Platform: XP105
• Mounting Flange: 4-bolt DIN, Ø25.4 mm
• Drive Shaft: 1:8 tapered keyed shaft
• Shaft End: Cone 1:8 with 2.4 mm key and M7 nut arrangement
• Suction Port: G 3/8 BSPP
• Pressure Port: G 3/8 BSPP
• Approximate Mass: 1.01 kg
• Control: Fixed mechanical displacement
• Theoretical Flow at 1500 rpm: approximately 2.34 L/min
• Maximum Pressure Valve: Optional
• Viton Seal: Optional
• Reinforced Shaft Seal: Optional
• Testing: Replacement pumps can be subjected to 100% simulated working-condition testing based on the original machine requirements.

Vivoil’s official XP101 page directly lists X1P1802FBBA among the XP105 Group 1 configurations.

Related Models

X1P1602FBBA

• 0.91 cm³/rev
• 240 bar working pressure
• 280 bar peak pressure
• 700–6000 rpm
• 3/8″ BSPP suction and pressure ports
• Ø25.4 mm DIN mounting
• 1:8 tapered keyed shaft

X1P1702FBBA

• 1.17 cm³/rev
• 250 bar working pressure
• 290 bar peak pressure
• 700–6000 rpm
• 3/8″ BSPP suction and pressure ports
• Ø25.4 mm DIN mounting
• 1:8 tapered keyed shaft

X1P1802FBBA

• 1.56 cm³/rev
• 250 bar working pressure
• 290 bar peak pressure
• 700–6000 rpm
• 3/8″ BSPP suction and pressure ports
• Ø25.4 mm DIN mounting
• 1:8 tapered keyed shaft

These specifications are supported by published Vivoil Group 1 technical data, while Vivoil’s own website confirms that the models belong to the XP105 Group 1 platform.

Key Technical Advantages

1. Compact Group 1 Architecture

The X1P1802FBBA belongs to the Vivoil Group 1 external gear-pump platform and uses a Ø25.4 mm mounting flange. Its compact architecture is suitable for small hydraulic power packs, mobile equipment and auxiliary hydraulic circuits where installation space is limited.

2. High-Speed Capability

The Group 1 platform can operate at speeds up to 6000 rpm.

For a 1.56 cm³/rev displacement:

1.56 × 6000 ÷ 1000 = 9.36 L/min

This is theoretical displacement flow. Actual delivery depends on volumetric efficiency and operating conditions.

3. 250 bar Working Pressure

The published X1P1802FBBA data specifies 250 bar maximum working pressure and 290 bar peak pressure, providing a high pressure-to-size ratio for a compact Group 1 gear pump. The peak value should not be treated as a continuous operating rating.

4. 1:8 Tapered Keyed Shaft

The X1P1802FBBA uses a 1:8 tapered keyed shaft, providing a compact mechanical connection suitable for European-standard hydraulic power units and machinery.

5. Standard BSPP Connections

The specific configuration uses G 3/8 BSPP suction and pressure ports. Matching the correct thread and sealing arrangement is essential for a reliable drop-in replacement.

6. Configurable Product Platform

Vivoil officially offers several options for the Group 1 platform, including Viton seals, maximum-pressure valves, reinforced shaft seals, double shafts, milled shafts and splined shafts.

7. CW and CCW Configuration Availability

Vivoil’s official product page confirms both clockwise and counterclockwise versions for the Group 1 platform and explains that certain configurations can be reversed without additional components, subject to the stated exceptions.

Application Areas

Typical applications include:

• Mobile hydraulic equipment
• Compact hydraulic power units
• Agricultural machinery
• Industrial auxiliary hydraulic systems
• Material-handling equipment
• Small hydraulic power packs
• Lubrication and auxiliary oil circuits
• Compact hydraulic actuators
• European-standard hydraulic pump replacement projects

Vivoil positions the Group 1 external gear-pump platform as a configurable hydraulic power component with multiple mounting, shaft and port options.

Expert Maintenance Tips

1. Verify Rotation Before Commissioning

The standard X1P1802FBBA configuration is right-hand/clockwise. Always confirm drive rotation before startup. Vivoil explicitly provides both clockwise and counterclockwise configurations.

2. Inspect the 1:8 Taper and Key

Check taper condition, key dimensions, nut engagement and shaft insertion depth. A nominally matching taper is not sufficient without verifying actual shaft extension and mechanical engagement.

3. Protect the Suction Circuit

At higher rotational speed, suction-line restrictions become increasingly important. An undersized inlet line, clogged filter or air ingress can increase cavitation risk, noise and internal wear.

4. Monitor Temperature at High Speed

Continuous operation near the upper speed limit can increase hydraulic and mechanical losses. Monitor hydraulic-fluid temperature and actual flow performance during sustained high-speed duty.

5. Separate Working and Peak Pressure

250 bar is the maximum working pressure and 290 bar is the peak pressure. The peak rating must not be interpreted as a continuous-duty pressure.

6. Verify BSPP Sealing

The configuration uses G 3/8 BSPP ports. Confirm the proper fitting standard and sealing method before commissioning; do not force incompatible metric or tapered-thread fittings into the pump ports.

7. Verify Complete Interchangeability

Before replacing an X1P1802FBBA, confirm:

• 1.56 cm³/rev displacement
• 250 bar working pressure
• 290 bar peak pressure
• 700–6000 rpm
• Right-hand rotation
• Ø25.4 mm DIN flange
• 1:8 tapered keyed shaft
• G 3/8 BSPP suction port
• G 3/8 BSPP pressure port
• Shaft extension
• Seal configuration
• Overall installation dimensions

Vivoil’s official platform documentation makes clear that shaft, port and front-flange options vary by configuration, so complete-model verification is essential.