GEAR PUMPS ALP SERIES
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ALP Marzocchi Gear Pumps (series ALP1, ALP2, ALP3, ALP4) offer displacements from 1.4 to 200 cm³/rev, pressures up to 290 bar, and maximum speeds up to 6000 rpm. Built with high-strength materials, they ensure high hydromechanical and volumetric efficiency, even in demanding applications.
They are manufactured in aluminum in four different groups (ALP1, ALP2, ALP3, ALP4), and are available with various flange, shaft, inlet and outlet port options.
Available in right-hand configuration, ALP…D, left-hand configuration, ALP…S, and reversible version, ALP…R, with a wide range of displacements for each group.
ALP Marzocchi Gear Pumps are at the heart of modern hydraulics thanks to a design based on decades of experience and continuous innovation. They are available in four distinct groups — ALP1, ALP2, ALP3, and ALP4 — and cover a displacement range from 1.4 cm³/rev up to 200 cm³/rev.
Continuous maximum pressure (P1) up to 250 bar, with peaks (P3) up to 290 bar
Maximum speed up to 6000 rpm (ALP1), 4000 rpm (ALP2), 3500 rpm (ALP3) and 2800 rpm (ALP4)
Materials: high-strength extruded aluminum body, case-hardened and tempered steel gears
Self-compensating bushings with anti-friction treatment
Low noise and long operational life
Available in reversible versions, with pressure relief valve and for high/low temperature applications
All ALP pumps are designed with automatic axial compensation to reduce leakage and optimize volumetric efficiency.
| Feature | Description |
|---|---|
| Type | External gear pumps, unidirectional or reversible |
| Displacement range | From 1.4 to 200 cm³/rev (series ALP1, ALP2, ALP3, ALP4) |
| Maximum pressure (P3) | Up to 290 bar (depending on model) |
| Intermittent pressure (P2) | Up to 270 bar |
| Continuous pressure (P1) | Up to 250 bar |
| Maximum speed | Up to 6000 rpm (ALP1), 4000 rpm (ALP2), 3500 rpm (ALP3), 2800 rpm (ALP4) |
| Minimum speed | From 800 to 400 rpm depending on size |
| Materials | Extruded aluminum body, flanges and covers in high-strength aluminum alloy |
| Gears | Case-hardened, tempered, and ground steel |
| Bushings | Die-cast aluminum with anti-friction surfaces and hydraulic compensation (except ALP1) |
| Lubrication | Oil film; external drainage required for reversible versions |
| Operating temperature | From -10 °C to +80 °C (standard); special versions up to -40 °C / +150 °C |
| Compatible fluids | Mineral oils compliant with DIN 51525 / VDMA 24317, with anti-wear and anti-foam properties |
| Configurations | Wide variety of flanges, shafts, ports, and mounting options |
| Typical applications | Mobile and industrial hydraulic systems, machine tools, high-efficiency circuits |
| Series | Displacement (cm³/rev) | Flow rate (L/min at 1500 rpm) | P1 (bar) | P3 (bar) | Max speed (rpm) |
|---|---|---|---|---|---|
| ALP1 | 1.4 – 13.8 | 2.0 – 19.7 | 150 – 250 | 180 – 290 | 6000 |
| ALP2 | 4.5 – 35.2 | 6.4 – 50.2 | 140 – 250 | 170 – 290 | 4000 |
| ALP3 | 20 – 87 | 29 – 124 | 140 – 230 | 170 – 270 | 3500 |
| ALP4 | 87 – 200 | 124 – 285 | 130 – 240 | 150 – 280 | 2800 |
Head Office:
Strada Statale 7 Via Appia, 68
82011 Airola (BN)
Legal Headquarters:
Via Tufara Scautieri, 6
83018 San Martino Valle Caudina (AV)
Tel.: +39 0823 950994
Fax: +39 0823 1607499
E-mail: info@lubeteam.it
Pec: lubeteam@legalmail.it
P.IVA: IT01251720627
