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Marzocchi gear pump GHP3A-D-80-FG

更新时间：2026-04-18 09:32:58

1. Product Overview

Marzocchi GHP3A-D-80-FG is a high-pressure gear pump belonging to the GHP3A series (Group 3) of Marzocchi, an internationally renowned Italian hydraulic equipment manufacturer. It is characterized by high working pressure, high efficiency, long service life and stable operation, suitable for hydraulic systems of construction machinery, industrial equipment and agricultural machinery, and can provide stable oil medium pressure supply for high-demand hydraulic scenarios. The pump body, flange and end cover are made of high-quality cast steel, ensuring excellent pressure resistance and mechanical performance to adapt to harsh working environments.

2. Core Technical Parameters

Parameter Item	Specification	Unit
Model	GHP3A-D-80-FG	-
Displacement	80	cm³/rev
Flow Rate (at 1500 r/min)	115	Litres/min
Maximum Pressure (P1, Continuous)	260	bar
Maximum Pressure (P2, Intermittent)	275	bar
Maximum Pressure (P3, Peak)	290	bar
Maximum Speed	3500	rpm

3. Structural & Installation Parameters

Shaft Specification: 13T spline shaft (ø22.2 mm), terminated with M14×1.5 hexagon nut and split spring washer.
Mounting Type: SAE B 2-bolt flange mounting (D-type flange), consistent with the GHP3A series standard.
Spigot Size: 82.55 mm (centering diameter).
Port Specification: G 1" BSP threaded ports (suction and pressure ports), which is consistent with the FG port designation and suitable for high-pressure oil circuit connection.
Port PCD: 110 × 80 mm (mounting bolt spacing), matching the overall structure of the GHP3A series.

4. Material & Performance Characteristics

Main Material: High-quality cast steel (pump body, flange, end cover), with excellent pressure resistance and wear resistance to adapt to high-pressure working conditions.
Performance Features: High volumetric efficiency (93% between 1000-2000 rpm), low pressure pulsation, stable operation, and strong adaptability to harsh working environments, which can meet the high-pressure demand of complex hydraulic systems.
Applicable Fluid Temperature Range: Standard range is -10 °C to +80 °C; applicable hydraulic oil viscosity is 6-500 cSt, recommended 10-100 cSt.
Applicable Inlet Pressure: 0.7 - 3 bar (standard working condition), ensuring stable suction performance under high-pressure operation.

5. Accessories & Notes

Optional Accessories: Standard accessories include woodruff key (Part No. 522058), M14×1.5 hexagon nut (Part No. 523017) and split spring washer (Part No. 523006); optional seal kit for GHP3A series (Part No. 650236).
Application Notes: The pump should be mounted on a firm and rigid bracket to absorb vibration and avoid structural damage caused by high-pressure operation; the coaxiality between the pump and motor shaft should be controlled within 0.1 mm, and a flexible coupling is recommended. The suction pipeline should be well sealed to avoid air leakage, and the suction height should not exceed 500 mm; the minimum working speed is 500 rpm.
Series Compatibility: Can be combined with other GHP series models or ALP series models to form double pumps or multiple pumps, and optional accessories such as pressure limiting valves and flow dividers are available for complex hydraulic system configuration.

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