What are the performance parameters of ALP series gear pumps?

The performance parameters of ALP series Marzocchi gear pumps are divided into sub-series as follows：
ALP1 series
Displacement range: 1.4~13.8 cm3/rev
Pressure level: common pressure 250 bar, peak pressure 290 bar
Speed range: 2000~6000 rpm
Flow rate at 1500 rpm: 2.0~19.7 L/min
Applicable scenario: Small flow hydraulic system (such as lubricating oil system)

ALP2 series
Displacement range: 4.5~35.2 cm3/rev
Pressure level: common pressure 270 bar, peak pressure 290 bar
Speed range: 2500~4000 rpm
Flow rate at 1500 rpm: 6.4~50.2 L/min
Applicable scenarios: general fluid delivery and hydraulic systems (such as injection molding machines, agricultural machinery)

ALP3 series
Displacement range: 20~87 cm3/rev
Pressure level: common pressure 230 bar, peak pressure 270 bar
Speed range: 2000~3500 rpm
Flow rate at 1500 rpm: 29~124 L/min
Applicable scenarios: high-flow and high-pressure scenarios (such as cutting fluid delivery, fuel injection system)

ALP4 series
Displacement range: 87~200 cm3/rev
Speed range: 2400~2800 rpm
Flow rate at 1500 rpm: 124~285 L/min
Applicable scenarios: ultra-high pressure/high speed fluid delivery (such as large hydraulic equipment)
Common technical characteristics
Material and seal：
The pump body is made of high-strength aluminum alloy or cast aluminum, which is resistant to pressure and deformation.
Double-lip sealing ring design, suitable for high temperature (-40°C to +120°C) and corrosive media (such as ethylene glycol water)
Structural design：
Single suction impeller, flange installation, support electric drive
Low pulsation output to ensure flow stability (especially ALP3A-D-135 type performs well in cutting fluid delivery)
Performance advantage：
Low pressure fluctuation, low noise, long life (wear-resistant bushing design reduces internal leakage)
Selection tips: Special working conditions (such as high temperature and low lubricating media) can choose the suffix to identify the model (such as -V high temperature resistance, -W corrosion resistance).It is necessary to match the sub-series in combination with the flow and pressure requirements, such as ALP3/ALP4 for large flow and ALP1 for precision control.

ALP1 gear pump model: ALP1-D-2, ALP1-D-3, ALP1-D-4, ALP1-D-5, ALP1-D-6, ALP1-D-7, ALP1-D-9, ALP1-D-11, ALP1-D-13, ALP1-D-16, ALP1-D-20
ALP1A-D-2, ALP1A-D-3, ALP1A-D-4, ALP1A-D-5, ALP1A-D-6, ALP1A-D-7, ALP1A-D-9

ALP2 gear pump model: ALP2-D-6, ALP2-D-9, ALP2-D-10, ALP2-D-12, ALP2-D-13, ALP2-D-16, ALP2-D-20, ALP2-D-22, ALP2-D-25, ALP2-D-30, ALP2-D-34, ALP2-D-37, ALP2-D-40, ALP2-D-50
ALP2A-D-6, ALP2A-D-9, ALP2A-D-10, ALP2A-D-12, ALP2A-D-13, ALP2A-D-16, ALP2A-D-20, ALP2A-D-22, ALP2A-D-25, ALP2A-D-30, ALP2A-D-34, ALP2A-D-37, ALP2A-D-40, ALP2A-D-50

ALP3 gear pump model: ALP3-D-30, ALP3-D-33, ALP3-D-40, ALP3-D-50, ALP3-D-60, ALP3-D-66, ALP3-D-80, ALP3-D-94, ALP3-D-110, ALP3-D-120, ALP3-D-135
ALP3A-D-30, ALP3A-D-33, ALP3A-D-40, ALP3A-D-50, ALP3A-D-60, ALP3A-D-66, ALP3A-D-80, ALP3A-D-94, ALP3A-D-110, ALP3A-D-120, ALP3A-D-135

ALP4 series gear pump model: ALP4-D-130, ALP4-D-160, ALP4-D-190, ALP4-D-220, ALP4-D-250, ALP4-D-270, ALP4-D-300
ALP4E-D-130, ALP4E-D-160, ALP4E-D-190, ALP4E-D-220, ALP4E-D-250, ALP4E-D-270, ALP4E-D-300
ALP4A-D-130, ALP4A-D-160, ALP4A-D-190, ALP4A-D-220