PFG-214 Atos High Pressure Gear Pump PFG Series

Product Overview

The PFG-214 (including variants such as 106274635 R/G) and PFG-327-D/RO are fixed-displacement external gear pumps from the Atos PFG series. Featuring axial hydraulic balancing, these pumps offer simple and sturdy construction, low noise and high efficiency. Displacements range from approximately 1.4 to 52 cm³/rev with maximum pressures up to 230 bar. Manufactured to SAE/ISO mounting standards, they provide direct bolt-on interchangeability with OEM units and undergo 100% simulated duty testing for reliable performance in industrial hydraulic systems.

Technical Specifications

• Models: PFG-214 (and variants such as PFG-214 R/G, 106274635); PFG-327-D/RO
• Pump type: Fixed displacement external gear pump
• Displacement (PFG-214): 14.1 cm³/rev
• Displacement (PFG-327): 26 cm³/rev
• Maximum pressure (PFG-214): Approx. 210 bar (higher for intermittent duty)
• Maximum pressure (PFG-327): Approx. 230 bar
• Speed range (typical): Approx. 500–3600 rpm (higher for smaller sizes, lower for larger)
• Flow reference (at 1450 rpm, ISO VG 46 @50°C): PFG-214 approx. 19.5 L/min; PFG-327 approx. 35.8 L/min
• Rotation: D = Clockwise (viewed from shaft end, standard); S = Counter-clockwise available
• Port example: RO = Side/radial flange ports
• Other: Axial hydraulic balancing design; suitable for mineral hydraulic oils or synthetic fluids with similar lubricating properties; mounting per SAE and ISO 3019 standards

Key Technical Advantages

1. True drop-in interchangeability: Manufactured to OEM dimensional and porting standards for bolt-on replacement without modifications.
2. Axial hydraulic balancing: Effectively compensates axial clearance to maintain high volumetric efficiency and reduce internal leakage and wear.
3. Low noise and robust construction: Optimized gear meshing and housing design deliver smooth, quiet operation and long service life.
4. Wide displacement and pressure range: Available from small to medium-large sizes with maximum pressures up to 230 bar for diverse applications.
5. 100% simulated duty testing: Full pressure, flow, noise and endurance verification before shipment ensures ready-to-install reliability.

Application Areas

• Industrial hydraulic power units and machine tools
• Injection molding machines, presses and metallurgical equipment
• Construction machinery auxiliary hydraulic systems
• Open-loop circuits requiring fixed-displacement high-pressure external gear pumps
• Multi-pump combinations with radial piston pumps

Expert Maintenance Tips

• Confirm clockwise rotation (D) and flange/port compatibility before installation; use recommended mineral hydraulic oil and maintain proper cleanliness.
• Start at low speed unloaded; check for leaks and noise. Avoid simultaneous maximum pressure and maximum speed.
• Regularly inspect seals and bearings; ensure unrestricted suction lines to prevent cavitation.
• Keep oil temperature and viscosity within recommended ranges; limit intermittent peak pressure duty as specified.
• For special codes (such as RO ports or coupling with PFR radial piston pumps), verify the full order code and consult technical support.