Marzocchi Hydraulic Gear Pump
3 month ago
Product details
Marzocchi Hydraulic Gear Pump
TheMarzocchi Hydraulic Gear Pump, manufactured byMarzocchi Pompe S.p.A.(Italy), is a high-performance external gear pump widely used in industrial, agricultural, aerospace, and construction machinery applications. Below is a detailed overview of its key features, technical specifications, applications, and selection guidelines:
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I. Key Features
1. High Efficiency & Energy Savings
• Advanced gear design and precision manufacturing ensure minimal mechanical losses and high volumetric efficiency (up to93%at1,000–2,000 rpm), providing stable hydraulic oil delivery.
2. Compact & Durable Construction
• Pump body, flange, and end cover made of high-strength cast iron or aluminum alloy, capable of withstanding high-pressure operation (max.310 bar).
• Hardened gears reduce wear, extending service life and lowering maintenance costs.
3. Low-Noise Operation
• Optimized gear meshing and pump housing design significantly reduce operational noise, ensuring a quieter working environment.
4. Stable Performance & Versatility
• Excellent self-priming capability and adaptability, operating reliably in temperatures ranging from-20°C to +80°C.
• Compatible with hydraulic fluids with viscosities from10–1,500 cSt(recommended20–400 cSt).
5. Modular Design & Easy Maintenance
• Simple structure allows for quick replacement of wear parts (e.g., gears, bearings), minimizing downtime and maintenance costs.
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II. Technical Specifications (GHP3A Series Example)
【表格】
Parameter Details
Model Example GHP3A-D-80-FG
Displacement 80 cm³/rev (nominal)
Flow Rate Approx. 120 L/min at 1,500 rpm
Pressure Rating Continuous: 280 bar
Speed Range 500–3,500 rpm
Port Connections 1" BSP suction, 3/4" BSP discharge
Mounting SAE B 2-bolt flange (Type D)
Shaft Type 13T splined shaft (Ø22.2 mm) with M14×1.5 hex nut & spring washer
Seal Type Mechanical seal (FG option) for enhanced wear/corrosion resistance
Recommended Fluid ISO VG 32 or ISO VG 46 anti-wear hydraulic oil
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III. Applications
1. Industrial Hydraulics
• Used in machinery manufacturing, metallurgy, chemicals, petroleum, and cement industries for high-pressure fluid transfer and powering production equipment (e.g., cutting fluid delivery, lubrication systems).
2. Agricultural Machinery
• Efficiently delivers water in agricultural irrigation systems, enabling precise spraying and improved water utilization.
3. Aerospace
• Provides reliable hydraulic power for aircraft and rocket control systems, ensuring stable operation under demanding conditions.
4. Construction Equipment
• Powers hydraulic systems in excavators, loaders, and other heavy machinery, ensuring consistent performance.
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IV. Product Series
Marzocchi offers a diverse range of hydraulic gear pumps to meet varying flow and pressure requirements:
• GHP Series: High-pressure gear pumps for heavy-duty applications (e.g., GHP3A-D-80-FG).
• ALP Series: Aluminum-body gear pumps with displacements from1.4–200 cm³/rev, suitable for medium/low-pressure systems.
• Micro Gear Pumps: Ultra-compact pumps with displacements from0.19–1.50 cm³/revfor miniature hydraulic systems.
• Tandem Gear Pumps: Dual-pump configurations for simultaneous dual-circuit hydraulic output, enhancing system flexibility.
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V. Selection & Installation Guidelines
1. Model Selection
• Choose based on required flow, pressure, and speed to ensure compatibility with system demands.
• Example: For high flow, select GHP3A series; for lightweight applications, opt for ALP aluminum series.
2. Installation Precautions
• Mount on a rigid support to absorb vibrations and prevent structural damage under high pressure.
• Ensure motor-pump shaft alignment error ≤0.1 mm; use a flexible coupling.
• Seal suction lines properly to avoid air leaks; maintain suction height ≤500 mm.
3. Maintenance & Care
• Replace hydraulic oil every1,000–3,000 operating hoursor6 monthsto maintain cleanliness.
• Regularly inspect seals, gears, and bearings for wear; replace components as needed.
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