Parker PGP50 PGP51 Pompa Gear Pump
Parker PGP50 PGP51 pompa gear pump
1. Structure
The PGP50/PGP51 series gear pumps feature a three-piece modular design optimized for durability and adaptability:
Materials:
Aluminum housing for lightweight construction.
Hardened steel gears and low-friction bushings to reduce wear under high pressure.
Pressure-balanced floating sleeves to maintain efficiency across operating conditions.
Key Components:
Drive/Driven Gears: Precision-machined with optimized tooth profiles (e.g., 12-13 teeth for PGP511) to minimize noise.
Thrust Blocks: Reduce axial loads and enhance longevity.
Lip seals and O-rings: Ensure leak-free operation.
Port End Cover: Standardized SAE or ISO porting for flexible integration.
2. Working Principle
PGP50/PGP51 pumps operate as external gear pumps:
Meshing Gears: The drive gear (powered by an external source) rotates the driven gear, creating a vacuum at the inlet port.
Fluid Intake: Fluid is drawn into the pump cavity as the gear teeth separate.
Fluid Displacement: Fluid is trapped between the gear teeth and housing, transported to the outlet port.
Pressure Generation: Gear meshing at the outlet compresses the fluid, generating flow against system resistance.
Pressure Balancing: Floating sleeves automatically adjust to maintain optimal gear-to-housing clearance, ensuring high volumetric efficiency.
3. Parameter
| Parameter | PGP505/PGP511 Specifications |
|---|---|
| Displacement Range | 2–12 cc/rev (0.12–0.73 in³/rev) |
| Continuous Pressure | 275 bar (3,988 psi) |
| Peak Pressure | 300–310 bar (4,350 psi) intermittently |
| Speed Range | 500–4,000 RPM (dependent on displacement) |
| Volumetric Efficiency | Up to 95% |
| Noise Level | ≤70 dB (optimized sinusoidal gear profiles) |
| Weight | 1.72–2.68 kg (single-pump configuration) |
| Fluid Compatibility | Mineral oils, synthetic fluids |
4. Key Features
High-Pressure Resilience: Sustained operation at 275 bar, ideal for heavy machinery like construction equipment.
Low Noise: Optimized 12-13 tooth gears and sinusoidal profiles reduce pressure pulsation.
Modularity: Supports multi-pump configurations (tandem or triple setups) with integrated valves (e.g., pressure relief, anti-cavitation).
Contamination Tolerance: Robust design withstands moderate fluid contamination.
Available Models:
G101/102 C101/102 P30/31 P50/51 P75/76 P315 P330/350 P365
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Model Description
Key Comparison with Conventional Gear Pumps
| Feature | Parker PGP Series (e.g., PGP50) | Standard Gear Pumps |
|---|---|---|
| Max Pressure | 275–310 bar | ≤200 bar |
| Noise Level | ≤70 dB | ≥80 dB |
| Efficiency | 90–95% | 75–85% |
| Material Durability | Hardened steel, cast iron | Standard alloys |
| Modularity | Multi-pump + valve integration | Single-unit designs |
Applications
The PGP50 and PGP51 are engineered for industries and equipment requiring dependable hydraulic power in confined spaces, including:
Mobile Machinery: Compact loaders, aerial work platforms, and forklifts.
Agriculture: Harvesters, sprayers, and irrigation systems.
Industrial Automation: Conveyor systems, presses, and packaging machinery.
Material Handling: Hydraulic lifts, pallet jacks, and waste compactors.
Why Choose the PGP50?
While specific technical data for the PGP50 is not detailed in the search results, the PGP series' proven advantages in high-pressure resilience, low-noise operation, and system flexibility make it a superior choice for:
Mobile hydraulics (e.g., excavators, agricultural machinery).
Industrial systems requiring energy efficiency and contamination resistance
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