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Parker PGP511 Series gear pump
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Description
1. General Information
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Pump Type: Fixed displacement gear pump
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Design Feature: Advanced international “floating bushing” design; pressure-balanced bearing housing for maximum efficiency
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Body Material: Aluminum alloy
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Brand Availability: Also marketed under Tyrone, Commercial, and Ultra brands
2. Performance Parameters
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Parameter
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Value Range
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|---|---|
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Maximum Operating Pressure
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Up to 250 bar (3,625 psi); continuous working pressure up to 275 bar (4,000 psi) for some models
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Displacement
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4 cm³/rev – 33 cm³/rev (0.24 in³/rev – 2.01 in³/rev); PGP511H sub-series: 10.1 cm³/rev – 28.3 cm³/rev (0.62 in³/rev – 1.73 in³/rev)
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Speed Range
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Minimum: 500 rpm; Maximum: 2,500 rpm – 4,000 rpm (PGP511H: up to 3,000 rpm)
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Noise Level
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PGP511H sub-series: Maximum 63 dB @ 2,950 rpm (low-noise spiral gear design)
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3. Physical Parameters
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Dimensions: 130.7 mm × 89.5 mm × 114 mm (length × width × height) for standard models
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Weight: Maximum 4.6 kg (10.1 lb)
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Shaft Type: SAE, ISO, DIN, or industry-specific; tapered shaft (1:8) available; SAE “A” spline (9-tooth, 16/32 DP, 31.8L) optional
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Mounting Options: SAE, ISO, DIN flanges
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Port Connections: SAE, ISO, NPT, BSPP, ODT; port types: flange, straight thread; port positions: side, rear
4. Fluid Requirements
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Fluid Type: Mineral oil (standard), phosphate ester, water-glycol
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Temperature Range: -15 °C to 80 °C (5 °F to 176 °F); PGP511H sub-series: -40 °C to 70 °C (-40 °F to 158 °F)
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Viscosity Range: 10 mm²/s – 300 mm²/s (50 SUS – 7,500 SUS); PGP511H sub-series: 15 mm²/s – 150 mm²/s
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Sealing Material: NBR (Nitrile Rubber) as standard
5. Configuration & Options
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Rotation Direction: Clockwise (CW), Counterclockwise (CCW), or bidirectional
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Configurations: Single, tandem, or multiple pump assemblies
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Integrated Valves (Optional): Anti-cavitation valve, relief valve, solenoid unload valve, proportional relief valve, cross-port relief valve, etc.
6. Typical Applications
Material handling equipment, lawn care machinery, construction equipment, trucks & buses, municipal street sweepers, agricultural machinery, aerial lifts, power steering systems, hydraulic power units, military applications.
7. Model Coding Example (Reference)
Model: PGP511A0160CA1H2NE5E3B1B1
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PG: Gear design; P: Pump category; 511: Series
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A: Single pump (standard motor, no check valve)
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0160: Displacement (16 cm³/rev)
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C: Rotation direction (Clockwise)
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A1: Shaft extension (SAE “A” spline)
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H2: Flange (SAE “A” 2-bolt, 106.4 – Ø82.55 mm)
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N: Seal material (NBR)
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E5/E3: Port threads (3/4 – 14 BSP / 1/2 – 12 BSP)
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B1/B1: No motor inlet/drain ports
Parker PGP511 gear pump
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