This document provides a detailed explanation of the model ALP3-D-45-FG belonging to Marzocchi ALP series gear pumps, including the interpretation of each model segment, product series characteristics and key technical parameters, so as to clarify the product specifications and application scope.
1. Model Breakdown
The model ALP3-D-45-FG is composed of five parts, each of which represents specific product parameters and structural characteristics, and the detailed interpretation is as follows:
1.1 ALP3
It represents the product series and size group of the gear pump:
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ALP: Abbreviation of "Standard Pressure Gear Pump", which is a standard pressure series gear pump launched by Marzocchi, featuring light weight, compact structure and wide applicability, mainly used in medium and low pressure industrial hydraulic systems.
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3: Indicates the size group of the pump, which determines the basic installation size, maximum displacement range and overall structural dimensions of the gear pump. The ALP3 group belongs to the medium size in the ALP series, with a displacement range of 20~87 cm³/rev.
1.2 D
It indicates the mounting method of the gear pump: D stands for "Flange Mounting", which means the pump is installed and fixed through a flange structure, ensuring stable installation and strong bearing capacity, and is suitable for most industrial equipment installation scenarios requiring fixed mounting.
1.3 45
It represents the displacement parameter of the gear pump, with the unit of cm³/rev (cubic centimeters per revolution). The displacement of this model is 45 cm³/rev, which means that the pump can deliver 45 cubic centimeters of hydraulic oil per revolution under standard working conditions. The displacement directly determines the flow rate of the pump (the flow rate can be calculated by multiplying the displacement by the rotational speed).
1.4 FG
It represents the special configuration and optional accessories of the gear pump, and the combination of letters has a clear functional meaning:
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F: Abbreviation of "Pressure Relief Valve", indicating that the pump is equipped with a built-in pressure relief valve, which can automatically release excess pressure when the system pressure exceeds the set value, so as to protect the pump body and the entire hydraulic system from damage due to overpressure.
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G: Abbreviation of "Mechanical Seal", indicating that the pump adopts a mechanical seal structure. Compared with ordinary seals, mechanical seals have better sealing performance, can effectively prevent hydraulic oil leakage, and are suitable for working conditions with higher sealing requirements.
2. Product Series Characteristics (ALP3 Series)
As a member of the ALP series, the
ALP3-D-45-FG gear pump inherits the core characteristics of the series, and its main performance indicators are as follows:
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Pressure Range: Maximum continuous working pressure is 230 bar, maximum intermittent pressure is 250 bar, and peak pressure is 270 bar, which can meet the pressure requirements of most medium and low pressure hydraulic systems.
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Speed Range: The maximum allowable rotational speed is 3500 rpm, and the normal working rotational speed range is 500~3500 rpm, which has good adaptability to different power source speeds.
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Material: The pump body is made of aluminum alloy, which is light in weight and has good corrosion resistance, suitable for use in general industrial environments.
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Structure: It adopts a rectangular flange design, with tapered or cylindrical shaft, and the inlet and outlet ports are set on the pump body, which is convenient for pipeline connection and installation.
3. Supplementary Notes
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The standard accessories of the pump include woodruff key, M14x1.5 hexagonal nut and elastic washer, and the standard inlet and outlet ports adopt M10 threads with an effective depth of 19 mm.
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The rotational direction of the pump is right-handed by default; if left-handed rotation is required, it needs to be specified when ordering.
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The specific technical parameters (such as weight, installation center distance, etc.) may have slight differences in different production batches. For the most accurate data, please refer to the official product manual of Marzocchi.
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Application Scope: It is widely used in industrial hydraulic systems, construction machinery, agricultural machinery, machine tools and other equipment that require stable medium and low pressure oil supply.
