Nachi PVD Series Pump | PVD-00B-14P, PVD-2B-36L | Main Pump for Mini Excavator | PVD-0B-21L
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Product Description
Nachi PVD Series Triple Hydraulic Pumps for Mini Excavators
Product Overview: The Nachi PVD Series is the premier power source for mini excavator hydraulic systems globally. Featuring a compact “Triple Pump” architecture, it integrates two high-pressure variable displacement axial piston pumps and one auxiliary gear pump within a single housing. Featured models like the PVD-00B-14P-5G3-5761A, PVD-2B-36L3DS-5S-4126G, and PVD-0B-21L3PS-6G3-4269F are specifically engineered for 1.5-ton to 3-ton construction machinery. Their superior constant power control ensures smooth torque distribution during compound movements (e.g., simultaneous traveling and boom lifting) while effectively preventing engine stalling.
Key Technical Advantages:
Highly Integrated Design: The triple-pump configuration saves critical space in narrow mini-excavator compartments and minimizes external plumbing, reducing potential leak points.
Precise Constant Power Modulation: Automatically adjusts displacement based on load pressure, keeping the engine within its optimal torque range to maximize fuel efficiency.
Superior Operational Smoothness: Sensitive pressure-limiting and flow-sharing capabilities provide operators with fluid control during precision grading or confined-space excavation.
100% OEM Seamless Compatibility: Strictly adheres to original mounting standards (e.g., PVD-00B-16P-6AG3-5220A), ensuring a “drop-in” fit for Kubota, Yanmar, and other major brands.
High-Pressure & Quiet Performance: Optimized swashplate bearings suppress hydraulic pulsations and vibration, ensuring a quieter operational environment and longer service life.
Detailed Models & Parameters:
Core Series: Nachi PVD Series (Triple Pump).
Model Keywords: PVD-00B-14P, PVD-2B-36L, PVD-00B-16P, PVD-0B-21L.
Full Config Codes: PVD-00B-14P-5G3-5761A, PVD-2B-36L3DS-5S-4126G, PVD-00B-16P-6AG3-5220A, PVD-0B-21L3PS-6G3-4269F.
Displacement Matrix: Piston circuits 14cc/16cc/21cc/36cc + integrated gear pump output.
Pressure Ratings: Rated at 21-24.5 MPa continuous; Peak capability up to 30 MPa (4350 PSI).
Target Applications: 1.5t to 3t mini-excavators, skid steer loaders, and compact drilling rigs.

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