Parker Hannifin ALP2-D-34 Hydraulic Gear Pump

The Parker Hannifin ALP2-D-34 hydraulic gear pump is a fixed‑displacement Group 2 gear pump in the ALP2 Alpha lineage, designed for compact hydraulic power units and mission-critical circuits. It delivers 23.7 cm3 of flow per revolution, providing a reliable, repeatable output for moderate‑pressure hydraulic systems. The pump is rated for up to 180 bar (about 2,600 psi) of continuous pressure and supports up to 3,000 rpm, making it suitable for industrial machinery, test rigs, and mobile equipment that require steady fixed displacement. Porting is supplied in standard BSPP sizes, with 3/4" and 1/2" connections to accommodate common hydraulic hoses and adapters. The model is associated with Parker part number 3349111059, and is commonly described within the Marzocchi/Parker portfolio as ALP2‑D‑34, reflecting Parker’s integration of legacy Marzocchi gear‑pump technology into the Alpha series. Its aluminum‑body construction and modular design support a compact footprint without compromising rigidity, enabling installation in space‑constrained power units and hydraulic circuits where dependable flow at a fixed rate is essential. Applications include hydraulic power units, circulation and lubrication circuits in industrial equipment, and other fixed‑displacement needs where consistent flow and long service life are important.