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MULTIPLE MODULAR PUMPS ALP/GHP

MULTIPLE MODULAR PUMPS  ALP/GHP
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MULTIPLE MODULAR PUMPS ALP/GHP

Product catalog summary
General Information: Marzocchi Pompe, established in 1961, is a prominent manufacturer of external gear hydraulic pumps and motors, part of the Marzocchi Group with over 400 employees.
Basic Design: The document outlines the design of external gear pumps, emphasizing their simplicity, durability, and cost-effectiveness. The ALP and GHP series are modular, featuring gears supported by aluminum bushes, a body, flange, and cover, designed to minimize deformation under high pressure.
Product Range: Marzocchi offers five families of modular gear pumps with varying displacements achieved by altering gear width. The range includes different flanges, shafts, and ports, detailed in specific catalogues.
Special Versions: Special versions cater to specific needs, such as high-temperature fluids ("V" and "VV" versions), low-temperature fluids ("H" version), and high inlet pressure ("TR" version), each with defined operating temperature and pressure ranges.
Technical Information: Optimal performance and longevity require adherence to installation and usage recommendations, including careful hydraulic system design, proper filtration, and ensuring power absorption in multi-stage pumps.
Recommendations for Correct Use: Key recommendations include ensuring the power absorbed by the front stage is greater than or equal to subsequent stages, adhering to maximum rotation speeds, and limiting operating pressures based on torque values.
Installation Notes: Precautions before continuous operation include matching pump rotation direction with the drive shaft, proper alignment to avoid loads, protecting the drive shaft seal, and ensuring cleanliness to prevent wear and leakage.
Cleaning and Filtering the System: Contaminated fluids are a major failure cause. System cleanliness during assembly and operation is crucial, with preventive actions to control contamination and use of effective filters.
Hydraulic Fluids: Use mineral oil-based hydraulic fluids with anti-wear, anti-foaming, and rapid de-aeration properties, complying with DIN 51525 and VDMA 24317 standards, with a temperature range of -10°C to +80°C.
Inlet Pressure and Lines: Maintain intake pipe pressure between 0.7 and 3 bars (absolute), ensuring no sudden changes in direction or cross-section in hydraulic system pipes.
Minimum Rotation Speed: Marzocchi pumps operate at a wide range of speeds, with minimum speeds specified in product tables.
Pressure Definition: Product tables define three maximum pressure levels (P1, P2, P3), with P3 as the peak maximum pressure.
Specifications: The document details external gear modular pumps, including micropumps and ALP and GHP series, designed to transfer fluid with each shaft rotation, with pressure depending on delivery line resistance.
Procedures: Use flexible couplings to connect pumps to motors, preventing force transmission to the pump shaft, with regular lubrication recommended.
Standards and Recommendations: Marzocchi pumps are monodirectional, with rotation defined by the driving shaft position. Formulas for calculating fluid velocity, flow rate, torque, and power are provided.
Key Data and Tables: Tables provide pump sizes, speeds, configurations, performance curves, and efficiency values for different conditions.
Ordering Information: Examples detail how to order pump elements, specifying group, rotation, displacement, shaft type, port type, and seal options.
Assembly Guidelines: Modular pumps can be assembled using kits or pre-assembled, with criteria for assembling multiple stages provided.
Assembly Kits and Spare Parts: Information on assembly kits and spare parts, including part numbers and descriptions, is provided.
Special Configurations: Options for separate and common inlets are discussed, with conditions and recommendations for use.
Conclusion: This document serves as a comprehensive guide for selecting, ordering, and assembling Marzocchi modular pumps, providing detailed specifications and customization options.
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Catalog excerpts

MULTIPLE MODULAR PUMPS  ALP/GHP-1

POMPE MULTIPLE MODULARI adINGRANAGGI MULTIPLE MODULAR GEAR PUMPS >

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MULTIPLE MODULAR PUMPS  ALP/GHP-2

Marzocchi Pompe was founded in 1961 by Guglielmo and StefanoMarzocchi, in Casalecchio di Reno, in the outskirts of Bologna.Today, Marzocchi Pompe leads an industrial group the Marzocchi Group - that employs more than 400 people. The Group, owned and directed by Adriano and Paolo Marzocchi, works in the hydraulic pump and motor sectors and in the suspensionsystems for motorcycles and mountain bikes.Marzocchi Pompe developed in time both their dimensions and their product range, being at present among the major manufacturers of external gear hydraulic pumps and motors. Marzocchi Pompe is now the...

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MULTIPLE MODULAR PUMPS  ALP/GHP-3

Informazioni generali Progetto di baseGamma di prodottoVersioni speciali Informazioni tecniche Note per lutilizzoNote per lҒinstallazionePulizia dellimpianto e filtrazioneFluidi idrauliciPressione in aspirazioneCondotti dҒaspirazione e mandataVelocit minima di rotazioneDefinizione delle pressioniSenso di rotazioneTrainoFormule di uso corrente Elementi modulari monodirezionali pagina/ pages 0.25 - 0.5 ALP1 - GHP1 ALP2 - GHP2 ALP3 - GHP3 ALP4 2 Pompe multiple modulari 24 5 Regole base per lassemblaggioDimensioni e ingombri di pompe multiple assemblateCome ordinare pompe multiple assemblateKit assemblaggioCoppie...

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MULTIPLE MODULAR PUMPS  ALP/GHP-4

BASIC DESIGN External gear pumps, be them of single or multiple stage type, is oneof the parts which are most widely used in modern oil-hydraulicsystems.They feature versatility, strength and long useful life. Their simple construction ensures limited purchase costs and servicing. Thanks to these basic concepts, together with ever-improving product design and features, research-based on many years of experience,accuracy in material selection, production process followed in greatdetail and tests on mass-produced parts, our gear pumps have reached top quality standards. This catalogues describes...

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MULTIPLE MODULAR PUMPS  ALP/GHP-6

GAMMA DI PRODOTTO PRODUCT RANGE Le pompe modulari ad ingranaggi Marzocchi sono prodotte incinque differenti gruppi. All'interno di ognuno, le diverse cilindrate siottengono variando lo spessore di fascia dentata dell'ingranaggio. La nostra gamma di produzione permette di poter scegliere diverse opzioni di flange, alberi e porte d'aspirazione e mandata. Esse non sono esplicitamente indicate sulla presente non esaustivapubblicazione pertanto, fare riferimento alle tavole sinottiche presentisulle pubblicazioni dedicate alle pompe singole della serie ALP e GHP. Per maggiori dettagli sulle disponibilit...

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MULTIPLE MODULAR PUMPS  ALP/GHP-7

SPECIAL VERSIONS For some groups and models are available special version forspecific uses:" V "Version suitable for fluid at hi-temperatures.Range between -10C and +120аC. In the range between-10 C and +80аC pressures P1, P2 and P3 are possible as per the product table; beside that P1 should not be exceeded. " VV "Version suitable for fluid at high temperatures.Range between -10C and +150аC with max. pressure = 20 bar. " ST "Version suitable for fluid at hi- or low-temperature.Range between -40C and +120аC. In the range between -10 C and +80аC pressures P1, P2 and P3 are possible as per the...

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MULTIPLE MODULAR PUMPS  ALP/GHP-8

Please follow installation and use instructions given in this catalogueto ensure optimal operating conditions and longer life of Marzocchimodular pumps.Some general considerations should be made on the hydraulic system, in which the pump must be fitted. Special attention shall be devoted to hydraulic system design and assembly, especially to intake, delivery and return pipes and position of system parts (valves, filters, tanks, heat exchangers and accumulators).Proper safety devices and reliable instruments to avoid fluidturbulence, especially in return pipe to the tank, and prevent air, water...

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MULTIPLE MODULAR PUMPS  ALP/GHP-9

INSTALLATION NOTES NOTE PER L'INSTALLAZIONE Before starting the system on a continuous basis, we suggest toadopt some simple precautions. Prima di avviare l'impianto a regime, consigliamo di osservare alcunisemplici accorgimenti. > Verificare, nel caso di pompa monodirezionale, che il senso di rotazione sia coerente con quello dell'albero dal quale deriva il moto. > Check for the direction of rotation of the pump to be consistent with the drive shaft one (in case of single rotation pump). > Check for the proper alignment of pump shaft and motor shaft: it is necessary that the connection does...

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MULTIPLE MODULAR PUMPS  ALP/GHP-10

β per particelle di piccole dimensioni concorrono a garantire buone caratteristiche di filtrazione. pertanto moltoimportante limitare, oltre alle dimensioni massime, anche il numerodelle particelle di piȹ piccole dimensioni che oltrepassano il filtro. Risulta pertanto evidente che, all'aumentare della pressione di esercizio e al grado di sofisticazione dell'impianto, la filtrazionedeve diventare sempre pi efficace.Il sistema di filtrazione deve comunque garantire livelli di contaminazione non superiori a quelli sotto riportati: Per sistemi che impiegano servovalvole sofisticate consigliatoimpiegare...

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MULTIPLE MODULAR PUMPS  ALP/GHP-11

HYDRAULIC FLUIDS Use specific mineral oil based hydraulic fluids having good anti-wear, anti-foaming (rapid de-aeration), antioxidant, anti-corrosion and lubricating properties. Fluids should also comply with DIN 51525 and VDMA 24317 standards and get through 11th stage of FZG test.For the standard models, the temperature of the fluid should not be between -10C and +80аC. Fluid kinematic viscosity ranges are the following: If fluids other than the above mentioned ones are used, pleasealways indicate type of used fluid and operating conditions so that our Sales and Technical Dept. can weigh possible...

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MULTIPLE MODULAR PUMPS  ALP/GHP-12

MIN. ROTATION SPEED Marzocchi pump flexibility is also highlighted by the wide selectionof rotation speeds they can work at. Max. values are indicated in product tables and change according to the model, while min. values are as follows: VELOCIT MINIMA DI ROTAZIONE La versatilit delle pompe Marzocchi evidenziata anche dall'ampiavariet di regimi di rotazione ai quali 蠨 possibile sottoporle. I valori massimi sono presenti nelle tabelle di prodotto e variano in funzione del modello, mentre i valori minimi sono indicati nelle seguenti tabelle: Taglia Size 182430364860Velocit minima [giri/min] 0,25...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.