ELI2 multiple series
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The new Marzocchi Low - noise and Low - ripple gear pump ELI2 multiple series ELIKA, Marzocchi's new proposal for the gear pump market, is a perfect fit for all those applications that require low noise levels. The use of ELIKA gear pump eliminates adverse noise effects on humans and on the surrounding environment. The ELIKA reduces the noise level by an average of 15 dBA compared with a conventional external gear pump. ELIKA is a patented product. Marzocchi extends the ELIKA family introducing multiple versions ELI2. ELI2 series, displacement from 7 to 35 cm3/rev.

Marzocchi extends the family ELIKA introducing ELI2 multiple versions. The particular shape of the Elika profile patented by Marzocchi Pompe, eliminates the phenomenon of encapsulation typical of normal gear pumps, deleting the source of the main cause of noise and vibrations. The structure of the pump minimizes the internal leakage, maximizing the volumetric efficiency under all conditions. The low number of teeth reduces the fundamental frequencies of the pump noise, producing a more pleasant sound. The particular shape of the profile without encapsulation significantly...

INSTALLATION NOTES Please strictly follow assembly and use indications given in this catalogue for top performance, longer life and noise of the ELI Marzocchi series. 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 fluid turbulence, especially in return pipe to the tank,...

INLET PRESSURE Under standard working conditions, intake pipe pressure is lower than atmospheric pressure. The operating inlet pressure should range between 0.7 and 3 bars (absolute). INLET AND DELIVERY LINES Hydraulic system pipes should show no sudden changes of direction, sharp bends and sudden differences in cross-section. They should not be too long or out of proportion. Pipe cross-section should be sized so that fluid velocity does not exceed recommended values. It is advisable to carefully consider the possible diameter reduction of the inlet or outlet pipes fitted on flange...

SEALS “N” Standard version on NBR the temperature of the fluid should between -10°C and +80°C. “V” Fluorocarbon version suitable for fluid at hi-temperatures. Range between -10°C and +120°C. In the range between -10°C and +80°C pressures P1, P2 e P3 are possible as per product table; beside that P1 should not be exceeded. FREQUENTLY USED FORMULAS Fluid velocity Calculate the velocity [v] of a fluid in a pipe as follows: v = Q / 6 x A [m/s] (1) Q = flow rate [liter/min] A = inside area of pipe [cm2] Delivered flow rate Calculate flow rate [Q] as follows: Q = V x n x r|vol x 10-3...

DISPL. FRONT STAGE DISPL. REAR STAGE FRONT STAGE PORTS REAR STAGE PORTS Pump standard types: 2 = european flange + shaft T0 + ports D + standard seals 2A = flange A + shaft C1 + ports FA **+ standard seals 2BK1 = flange BK1 + shaft T1 + ports D + standard seals 2BK2 = flange BK2 + shaft T1 + ports D + standard seals 2BK4 = flange BK4 + shaft T1 + ports D + standard seals 2BK7 = flange BK7 + shaft G0 + port D + standard seals Examples: PD ELI2-D-16.1/8.2-T0-D-D-N = Double pump clockwise rotation, front...

FRONT STAGE Accessories supplied with the standard pump: woodruff key (code 522057), M12x1.5 hexagonal nut (code 523016), washer (code 523005). Standard ports: M6 threads depth 13 mm. Please strictly follow assembly and use indications given in this catalogue for top performance and longer life of the ELI Marzocchi series. It is also very important to equip the hydraulic system with a proper filtering unit.

REAR STAGE ** With thread ports a reduction of body fatigue strength may occur if the pump is working at elevated and intermittent pressures. Accessories supplied with the standard pump: key (code 522067). Mounting flange 82-2 (A) in compliance with SAE J744C. "D" and "d" ports are machined in compliance with threaded port with O-ring seal in truncated housing SAE J1926/1 (ISO 11926-1). Please strictly follow assembly and use indications given in this catalogue for top performance and longer life of the ELI Marzocchi series. It is also very important to equip the hydraulic system with a...

FRONT STAGE Accessories supplied with the standard pump: woodruff key (code 522055), M12x1.5 hexagonal nut (code 523016), washer (code 523005). Standard ports: M6 threads depth 13 mm. Please strictly follow assembly and use indications given in this catalogue for top performance and longer life of the ELI Marzocchi series. It is also very important to equip the hydraulic system with a proper filtering unit.

Accessories supplied with the standard pump: woodruff key (code 522055), M12x1.5 hexagonal nut (code 523016), washer (code 523005). Standard ports: M6 threads depth 13 mm. To mount the pump: n°2 M10 screws with a torque wrench setting fixed at 46±4 Nm. Please strictly follow assembly and use indications given in this catalogue for top performance and longer life of the ELI Marzocchi series. It is also very important to equip the hydraulic system with a proper filtering unit.

FRONT STAGE Accessories supplied with the standard pump: woodruff key (code 522055), M12x1.5 hexagonal nut (code 523016), washer (code 523005). Standard ports: M6 threads depth 13 mm. To mount the pump: n°2 M10 screws with a torque wrench setting fixed at 46±4 Nm. Please strictly follow assembly and use indications given in this catalogue for top performance and longer life of the ELI Marzocchi series. It is also very important to equip the hydraulic system with a proper filtering unit.