What models are available for ALP series Marzocchi gear pumps?
Marzocchi ALP series gear pumps are divided into four sub-series according to the displacement range. The models and parameters of each series are as follows：
ALP1 series
Displacement range: 1.4~13.8 cm3/rev
Pressure level: common pressure 250 bar, peak pressure 290 bar
Optional 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 series
Displacement range: 4.5~35.2 cm3/rev
Pressure level: common pressure 270 bar, peak pressure 290 bar
Optional 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 series
Displacement range: 20~87 cm3/rev
Pressure level: common pressure 230 bar, peak pressure 270 bar
Optional 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
Displacement range: 87~200 cm3/rev (for large flow applications)
Optional 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
Selection instructions
Meaning of model suffix：
A: Optimized design version (such as noise reduction and efficiency improvement)
E: Special flange or interface configuration
No suffix: standard model
Adaptation to special working conditions：
High temperature environment (-40°C to +120°C) optional V suffix model (such as ALP3A-D-135-V)
Low lubricating media (such as ethylene glycol water) optional W suffix model (such as ALP2A-D-25-W)
Application scenario：
ALP1/ALP2: Light machinery (injection molding machines, agricultural equipment)
ALP3/ALP4: Heavy industry (hydraulic cutting machine, cutting fluid delivery system)
Tip: The specific selection needs to be combined with the working condition parameters (pressure, flow, medium). It is recommended to consult authorized suppliers (such as Suzhou Lidesheng Electromechanical) for customized solutions.
