Parker P3105 Variable Axial Piston Pump

The Parker P3105 (approximately 17cc/rev) is a medium displacement, high-pressure quantitative piston pump based on a larger mechanical frame. It occupies an important position in industrial fields that require sustained high pressure due to its sturdy structure and reliable performance.

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1, Model Interpretation: P3105
Following Parker's traditional naming convention:
P: Representing the Parker brand or the Piston pump category.
3: Representing the series code, it usually means that this is a platform with a larger size and displacement range than the "2" series (such as P2145).
105: Displacement code, expressed in imperial units. The "105" here represents a displacement of 1.05 cubic inches per revolution.
Convert to metric units: 1.05 cu-IN/rev ≈ 17.2 cc/rev (milliliters per revolution).
Therefore, the basic displacement of P3105 is approximately 17 cc/rev.
A very important comparison and clarification:
P2145: Displacement code "145" ->approximately 1.45 cu-IN/rev ->~24 cc/rev
P3105: Displacement code "105" ->approximately 1.05 cu-IN/rev ->~17 cc/rev
Conclusion: The displacement of P3105 (17 cc/rev) is actually smaller than that of P2145 (24 cc/rev). The number "3" does not mean a larger displacement, but rather that the physical dimensions of the pump frame (flange, shaft diameter, etc.) belong to a larger platform, but its internal plunger diameter and stroke (i.e. displacement) can be of different specifications under this platform.
Modern equivalent models: In Parker's current PV/PVplus series, the model with the closest displacement to P3105 is PV 016 or PV 018 (16 or 18 cc/rev), but the installation interface may be different.
2, Core Features and Structure
Pump type: inclined disc axial plug fixed displacement pump. The structure is based on the same principle as P2145, but due to its larger frame size, its bearing capacity, shaft diameter, and other load-bearing capabilities are usually stronger.
Quantitative output: Flow rate is strictly proportional to speed.
High performance parameters (typical values):
Working pressure: Continuous working pressure can typically reach 250 bar (3625 psi) or higher, depending on the configuration.
Speed range: Depending on the specific design, the rated speed may be around 1800-2500 rpm, please refer to the technical manual for the specific model.
High power density: Provides high pressure and high flow in a relatively compact size.
Rich control options: Similarly, complex functions can be achieved by installing various pilot control valves on the back cover:
High pressure relief valve (pressure limit)
Electromagnetic unloading valve (energy-saving control)
Load sensitive valve (for multi way valve systems)
Rotation direction: The standard is clockwise (CW) when viewed from the shaft end.

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