Product Overview The ATOS PFG-1 Series external gear pumps are engineered to provide reliable hydraulic power in a compact package. These pumps utilize a pressure-balanced design where bushings are hydraulically loaded against the gear faces, minimizing internal leakage and maximizing volumetric efficiency. The simple yet sturdy construction makes them suitable for a wide variety of hydraulic fluids, including mineral oils and synthetic fluids.
Why Choose ATOS PFG-1?
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High Efficiency: Automatic axial hydraulic balancing ensures sealing efficiency is maintained across the entire pressure range.
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Low Noise Level: Optimized gear tooth profile and manufacturing precision significantly reduce operational noise.
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Durability: High-strength aluminum alloy housing and hardened steel gears ensure a long service life under heavy loads.
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Versatility: Available in clockwise (D) and counter-clockwise (S) rotation with various shaft and flange options to match standard PTOs.
Common Applications:
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Power packs (Mini power units)
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Machine tools
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Light mobile equipment
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Lubrication systems
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Agricultural machinery
| Specification | Value / Description |
| Product Type | External Gear Pump, Fixed Displacement |
| Series | PFG-1 (Size 1) |
| Displacement Range ($V_g$) | 1.4, 2.1, 2.8, 3.5, 4.2, 4.9, 6.0, 7.4, 8.7, 9.9 cm³/rev |
| Max. Working Pressure | Up to 230 bar (3300 psi) depending on displacement |
| Peak Pressure | Up to 250 bar |
| Speed Range ($n$) | 600 – 4000 rpm |
| Rotation Direction | Clockwise (D) or Counter-Clockwise (S) |
| Fluid Temperature | -20°C to +80°C (Standard Seals) |
| Viscosity Range | 15 – 100 mm²/s (Optimal), Max start-up 800 mm²/s |
| Port Connections | Threaded (GAS/BSP) or Flanged |
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