GHP2A-D-20-FG Marzocchi Gear pump

Detailed parameters of Marzocchi gear pump GHP2A-D-20-FG
1. Model analysis
GHP2A-D-20-FG is the model of Marzocchi GHP series high-pressure gear pump. The meanings of each symbol are as follows, which can accurately locate the core configuration of the product.：
-GHP: The product series logo represents a high-pressure gear pump, designed for industrial hydraulic systems, with high-pressure stable output characteristics.
-2A: Displacement and structure version, where “2“ represents the second-generation optimized design, which improves the efficiency and operating reliability of the pump body; ”A” is the structure code, which corresponds to a specific internal gear and sealing layout, and is suitable for medium and high pressure working conditions.
-D: Installation method, refers to Flange installation, compatible with SAE or DIN standard installation interface, easy to integrate and assemble with hydraulic systems of various industrial equipment.
-20: Displacement identification, corresponding to the theoretical displacement of 14.1 cm3/rev (14.1 ml/rpm), combined with the rotational speed, the actual output flow rate can be calculated (for example, the theoretical flow rate at 1500 r/min is about 20.1 L/min).
-F: The oil port configuration represents the layout of the lateral oil inlet and the top oil outlet. Other oil port directions can be customized from the manufacturer according to the actual installation space requirements.
-G: Shaft seal type, refers to the mechanical seal, made of silicon carbide/graphite material, with high temperature resistance and wear resistance characteristics, can be adapted to a variety of hydraulic oil media; optional lip seal (L type) or magnetic seal (M type) to meet the needs of special working conditions.

2. Core performance parameters
The following parameters are the standard technical indicators of this type of gear pump. The actual operation needs to be adjusted in combination with factors such as oil type and working condition temperature.：
-Pressure parameters: continuous working pressure can reach 260 bar, short-term working pressure 275 bar, peak pressure 290 bar (duration <10 minutes), stable high-pressure output, suitable for medium and high-pressure hydraulic system requirements; other data show that the peak pressure of Marzocchi pumps of the same series can exceed 300 bar under some operating conditions, the specific application scenarios and manufacturer calibration shall prevail.
-Speed parameters: The speed range is 500-3200 r/min, and it is recommended to work continuously at a speed ≤2500 r/min to avoid increased wear caused by long-term operation at high speeds; when the rated speed is 1450 r/min, stable flow output and efficiency performance can be achieved.
-Displacement and flow rate: the theoretical displacement is 14.1 cm3/rev, and the theoretical flow rate is about 20.1 L/min at a speed of 1500 r/min; the actual flow rate is affected by the system pressure and oil viscosity, and the volumetric efficiency is ≥92% (the test value of the new product is slightly reduced with the use of wear).
-Efficiency parameters: mechanical efficiency ≥87%, thanks to the high-precision gear processing technology, internal leakage and energy loss are effectively reduced; the total efficiency is ≥90%, and the energy saving performance is excellent.
-Temperature and medium: the operating temperature range is -20℃ to +80℃. Low-viscosity oils (such as ISO VG 10) need to be used in low-temperature environments, and oil cooling needs to be paid attention to in high-temperature environments; the recommended oil viscosity is 16-68 cSt (ISO VG), and the oil cleanliness level must be ≤NAS 1638-9 to avoid impurities from damaging the seal and gear.
-Noise level: At a distance of 1 meter and at full load of 2000 r/min, the noise is ≤70 dB (A); some working condition tests show that the noise can be as low as 60 dB (A), and the operation is quiet, which is suitable for scenarios with high noise control requirements..

Marzocchi GHP Series gear pump model ：GHP1A-D-2 、 GHP1A-D-3 、 GHP1A-D-4 、 GHP1A-D-5 、 GHP1A-D-6 、 GHP1A-D-7 、 GHP1A-D-9 、 GHP1A-D-11 、 GHP1A-D-13 、 GHP1A-D-16 、 GHP1A-D-20 、 GHP1A-D-22 、 GHP1A-D-25 、 GHP1A-D-30 、 GHP1A-D-34 、 GHP1A-D-37 、 GHP1A-D-40 、 GHP1A-D-50 、 GHP1A-D-63 、 GHP1-T-16 、 GHP1-MU-20 、 GHP1A-D-2-FG 、 GHP1AD-16 、 GHP1AD-20 、 GHP1A2-D-2 、 GHP1A2-D-3 、 GHP1A2-D-4 、 GHP1A2-D-5 、 GHP1A2-D-6 、 GHP1A2-D-7 、 GHP1A2-D-9 、 GHP1A2-D-11 、 GHP1A2-D-13 、 GHP1A2-D-16 、 GHP1A2-D-20 、 GHP2A-D-6 、 GHP2A-D-9 、 GHP2A-D-10 、 GHP2A-D-12 、 GHP2A-D-13 、 GHP2A-D-16 、 GHP2A-D-20 、 GHP2A-D-22 、 GHP2A-D-25 、 GHP2A-D-30 、 GHP2A-D-34 、 GHP2A-D-37 、 GHP2A-D-40 、 GHP2A-D-50 、 GHP2-T-20 、 GHP2-MU-30 、 GHP2A-KA-16 、 GHP2BK1-D-16 、 GHP2BK1-D-20 、 GHP3A-D-30 、 GHP3A-D-40 、 GHP3A-D-50 、 GHP3A-D-63 、 GHP3-MU-40 、 GHP3-D-50