Short Description
Premium factory-direct aftermarket Eaton Vickers PVQ Series Variable Displacement Axial Piston Pumps (Complete Assemblies), engineered as 100% plug-and-play interchangeable drop-in power units for low-noise industrial open-circuit systems. Covering full factory frames from PVQ10 up to PVQ45, our heavy-duty complete pumps feature a patented fluid-pulsation dampening internal layout that reduces acoustic noise levels by up to 4-6 dBA. Every assembly is fully verified to sustain continuous operating pressures up to 210 bar and peak pressures of 280 barin injection molding machines, machine tools, and industrial HPUs.

Key Technical Highlights
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100% Drop-In OEM Envelope Alignment: Fully reverse-engineered strictly to original Eaton Vickers PVQ micro-metric factory blueprints. Every standard SAE standard flange, keyed/splined drive shaft, and fluid port thread lines up flawlessly with your factory plant layout—zero installation modifications required.
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Patented Low-Noise Damping Geometry: Built with a specialized timing valve plate matrix and heavy-duty noise-attenuation pump casings. Our PVQ assemblies dramatically smooth out fluid pressure ripples, ensuring an ultra-quiet working environment even under full industrial load profiles.
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Premium Long-Life Bimetal Rotator Groups: Utilizing high-density copper-cladding fusion on the cylinder block faces paired with induction-hardened alloy steel pistons ($60\text{–}62\text{ HRC}$). This premium dynamic clearancing prevents internal thermal scoring under continuous 24/7 factory operation cycles.
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Precision Control Compensator Integration: Complete readiness for all standard variable controller block variants, including Pressure Compensators (C), Load Sensing (CM), and Remote Controls (CG), completely factory-calibrated to eliminate dynamic setting lag.
| Frame Model & Displacement | Available Control Compensator Options | Primary Industrial Machinery Application Scope |
|---|---|---|
| PVQ10 / PVQ13 / PVQ20 / PVQ32 | C: Standard Pressure Compensator CM: Load Sensing + Pressure Limiter CG: Remote Pressure Control Valve CD: Electric Dual Pressure Control |
CNC Machine Tools, Factory Hydraulic Power Units (HPU), Light Plastic Injection Machinery, Metal Shear Systems. |
| PVQ40 / PVQ45 | Heavy Die-Casting Machinery, Industrial Baling Presses, Marine Deck Winches, Ship Steering Auxiliary Systems. |
Haozheng Hydraulic Production Processing Diagram
Haozheng Hydraulic Honorary Certificate
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FAQ
Q1: Vickers PVQ pumps have highly complicated model codes detailing seals, shafts, and design numbers. How do you guarantee the pump will match my factory machine? A: Industrial integration requires zero margin of error. The PVQ ordering string indicates vital configuration parameters such as design codes (e.g., Design 10 or 20), specific shaft seals (standard Nitrile or high-temperature Viton for synthetic fluids), and mounting styles (e.g., PVQ20-B2R-SS1S-21-C21-12). To ensure a 100% plug-and-play replacement, our engineering team maps either your original nameplate alphanumeric string or your plant equipment’s OEM cross-reference number prior to dynamic assembly.
Q2: Factory plant environments are highly sensitive to decibel thresholds. How do you guarantee the noise level of your aftermarket PVQ pumps? A: We do not just build pumps; we control acoustics. Every single aftermarket PVQ pump assembly we supply undergoes rigorous mechanical and acoustic validation on our testing lines. We measure fluid pressure ripple pulsations and mechanical dB output across full shifting ranges up to 210 bar, certifying that our pump tracks within the original “Quiet Series” low-decibel boundary lines before crating.













