ELIKA series low noise
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ELIKA by MARZOCCHI The new Marzecchi Low - neise and Lew - ripple gear pump ELI2 series up te 35 cm3/rev 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. ELI2 series, displacement from 7 to 35 cm3/rev.

ELI2 is the first release of the ELIKA product line and includes pumps with displacements perfectly standard gear pumps in the ALP2 and GHP2 series. The maximum operating pressures are similar to those of the GHP2 series and extend up to 300 bar. The helical gears ensure the continuity of the motion despite the low number of teeth. The low number of teeth reduces the fundamental frequencies of the pump noise, producing a more pleasant [dBA] sound. The particular shape of the profile without vibrations produced by the pump and transmitted to the other components, reducing the noise of the...

HIGH PRESSURE GEAR PUMPS ELIKA 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. This feature makes the Elika pump suitable for work operations with low speed and high pressure. Internal leakage, virtually eliminated in the Elika pumps, can overheat the pump’s components. Comparing the characteristics of the Elika pump...

The very low noise level generated by the ELIKA pumps makes this product particularly suitable for those application where screw pumps, vane pumps or internal gear pumps are generally used. The simple construction, small size and high performances of ELIKA make this new product very competitive. Noise comparison between: standard external gear pump, dual flank gear pump, internal gear pump, vane pump, ELIKA pump, pressure 200 bar. The low pulsation reduces the induced vibration in the machines. The lower frequency of the ELIKA pump produces a more pleasant sound. Pressure pulsation...

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] 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 ηvol x 10-3 [liter/min] V =...

2A = flange A + shaft C1 + ports FA**+ standard seals 2BK7 = flange BK7 + shaft GO + port D + standard seals Examples: ELI2-D-8.2-T0-D-N = clockwise rotation, 8.2 cm3/rev, european flange, 1:8 tapered shaft, flanged ports D type, standard ELI2-D-8.2-S1-D-N = clockwise rotation, 8.2 cm3/rev, european flange, splined shaft S1, flanged ports D type, standard ELI2A-D-8.2-S1-FA-N = clockwise rotation, 8.2 cm3/rev, SAE flange, splined shaft S3, threaded ports FA**, standard seals. ELI2BK1-S-8.2-T1-D-N = counterclockwise rotation, 8.2 cm3/rev, BK1 flange, 1:5tapered...

Outlet Pump Type 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.

ELI2A Outlet Inlet Pump Type ** 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...

ELI2BK1Outlet Inlet Pump Type 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.