PVS16-A3-F-R-S-10 Variable Piston Pump 16cc 255bar

Product Overview

The PVS040, PVS08, PVS12, PVS16, PVS25 and PVS32 series (including PVS12AZ140C2 and PVS16-A3-F-R-S-10) are high-pressure variable displacement piston pumps. Featuring a pressure-compensated variable mechanism for adjustable flow and pressure, these pumps offer compact size, low noise, high efficiency and fast response, ideal for medium-to-high pressure energy-saving hydraulic systems. We specialize in the R&D and manufacturing of high-pressure pumps, motors and valve blocks. Our products provide 100% drop-in interchangeability with genuine equivalent models and undergo 100% simulated operating-condition testing. Precision machining and high-quality materials ensure stable adjustable flow under high-pressure conditions for machine tools, injection molding machines and industrial equipment.

Technical Specifications

(Based on manufacturer technical data; theoretical values excluding efficiency and tolerances)

• Series: PVS08, PVS12, PVS16, PVS25, PVS32, PVS040 etc.
• Typical models:
  • PVS16-A3-F-R-S-10: Geometric displacement approx. 16–16.5 cm³/r, pressure range A3 (approx. 30–255 bar)
  • PVS12AZ140C2: Displacement approx. 12–12.8 cm³/r, pressure approx. 140 bar
• Other reference displacements: PVS08 approx. 8 cm³/r; PVS25 approx. 22–24 cm³/r; PVS32 approx. 31–36 cm³/r
• Continuous pressure: up to 255 bar (depending on pressure code A0–A4)
• Peak pressure: Higher intermittent values possible depending on configuration
• Speed range: approx. 300–2000 r/min (or 500–2000 r/min)
• Control: Pressure-compensated variable displacement (standard compensator), flow automatically adjusts with pressure; rotation R = clockwise
• Mounting & ports: F = flange mounting, shaft options keyed or splined (S)
• Approximate weight: 9 kg for PVS08; 13 kg for PVS16
• Other: Low-noise design, suitable for medium-to-high pressure systems

Key Technical Advantages

1. Precision pressure-compensated variable mechanism: Internal pressure feedback automatically adjusts displacement for energy-saving operation. Pressure and flow are flexibly settable with rapid response.
2. High efficiency and low-noise design: Optimized piston-to-cylinder geometry delivers high volumetric efficiency and smooth, quiet running, ideal for precision equipment.
3. Compact structure and long service life: Small size and light weight combined with high-quality materials and precision machining ensure excellent wear resistance and reliability.
4. 100% drop-in interchangeability and simulated-condition testing: Overall dimensions, mounting interfaces, shaft types and performance curves match genuine equivalent units exactly for direct replacement. Every unit undergoes 100% simulated operating-condition testing to verify pressure, flow, efficiency and sealing performance.
5. Flexible pressure and mounting configurations: Multiple pressure codes and flange/foot mounting options available to meet diverse system requirements.

Application Areas

• Machine tools and machining centers: main hydraulic systems, clamping and feed
• Injection molding and die-casting machines: variable energy-saving oil supply
• Industrial equipment: presses, bending machines, general hydraulic power units
• Precision machinery requiring high-pressure variable energy-saving control

Expert Maintenance Tips

• Before installation, confirm rotation and shaft type match the host machine. Ensure adequate suction line diameter and proper sealing to avoid cavitation.
• Use hydraulic oil with cleanliness meeting ISO 4406 18/16/13 or better; maintain suitable viscosity at operating temperature. Run at low speed during cold starts.
• Regularly check the pressure compensator setting to keep pressure stable; avoid prolonged over-pressure operation.
• When replacing seals or internal components, maintain strict cleanliness; perform air bleeding and low-pressure test run after assembly.
• Perform preventive inspections every 2000–4000 hours depending on duty cycle; monitor noise, temperature and any flow changes, and service promptly.