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Eckerle Technologies GmbH
Internal gear pumps EIPS2

Internal gear pumps EIPS2

Product catalog summary

Overview: The EIPS2 internal gear pump is designed for mobile hydraulic systems and light industrial applications. It features axial and radial gap compensation, a pressure cover, and is known for low noise, long life, and low pulsation.

Specifications: The pump is available in various sizes with specific volume ranging from 5.4 to 25.2 cm³/rev. It operates at a continuous pressure of 250 bar, with peak pressures up to 350 bar for short durations. The nominal speed varies by size, with a maximum speed of up to 4200 min^-1. Operating temperatures range from -20°C to +100°C, and it supports a viscosity range of 10 to 300 mm²/s.

Technical Data: The pump's efficiency ranges from 91% to 95% volumetric and 90% to 93% hydraulic-mechanical. Noise levels are measured between 55 and 64 dB(A). The pump is not corrosion-protected, and maximum permissible values should not be applied cumulatively.

Dimensions and Installation: The document provides detailed dimensions for various pump sizes and configurations, including cylindrical and splined shafts, and SAE-A-2-hole flanges. Installation requires M8 DIN 912 screws with a specified tightening torque.

Ordering Information: The ordering code includes details on intake and outlet connections, shaft end type, rotation direction, and rated size. Special versions and revisions are also available upon request.

Performance Characteristics: The pump's performance is characterized by volume flow, efficiency, sound level, and driving power under specified conditions. Measurements are taken at 1450 rpm and 40°C operating temperature.

Catalog excerpts

Internal gear pumps C> ECKERLE HYDRAULIC DIVISION

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Internal gear pump Type EIPS2 with constant displacement volume Characteristics • Internal gear pump with axial and radial gap compensation • Radial compensation with segments • Pressure cover • Field of application: Mobile hydraulic systems, e.g. for fork lifts light industrial hydraulic applications • Direct fixture • Low noise • Long time life • Low pulsation (pressure pulsation ~ 2%) Continuous operating pressure [bar] Peak operating pressure [bar] max. 10 sec. 15% duty cycle Cut-in pressure peak 100 ms [bar] Nominal speed [min-1] Max. speed [min-1] Operating viscosity [mm2/s] Starting viscosity...

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DimensionsPump with oldham coupling Order example: EIPS2 -___LD34-1X rotation direction rotation direction Pump with SAE-A-2-hole flange and cylindrical shaft Order example: EIPS2 -___RA04-1X S111 Size

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DimensionsPump with SAE-A-2-hole flange and cylindrical shaft Order example: EIPS2 -___RA04-1X Size rotation direction SAE-B flange on request rotation direction Provide M8 DIN 912 fastening screws with DIN 433 plain washer, tightening torque M=25+5 Nm

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DimensionsDouble pump with SAE-2-hole flange and cylindrical shaft Order example: EIPS2 -___RK04-1X S111 +EIPS2 -___RK34-1X S111 rotation direction

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Connecting flanges 4-hole flange 90° BSPP-threaded steel Flange connection - straight 24° DIN 3901

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Intake and outlet connections/ Ordering code Intake and outlet connections Intake connection Size 005–016 Outlet connection Size 019–025 Thread depth M6 and M8 = 12 mm All dimensions stated in mm – other connections on request – EIP S2 - 011 RA34 - 10 S111 Special version number For example: S111 light industrial version Revision code 1st number: Change of mounting dimensions 2nd number: Change of pump with same mounting dimensions Intake and outlet connection 4: Square flanged connection in accordance with DIN 3901/3902 – other connections on request – Fastening flange 0: SAE-A-2-hole centring...

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Driving power Sound level pressure in air Measurement conditions: Speed 1450 rpm, viscosity 46 mm2/sec., operating temperature 40 °C, Sound pressure measured in low-reflection anechoic room in accordance with DIN 45 635 sheet 26; Microphone distance 1.0 m axial. All indicated data serve alone the product description and are not as characteristics in the legal sense to be understood. Subject to alterations. Eckerle Technologies GmbH ■ P.O. box 1368 Otto-Eckerle-Strasse 6/12 A ■ D-76316 Malsch ■ Germany Phone +49 (0) 7246 9204-0 ■ [email protected] ■ www.eckerle.com

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Internal gear pumps EIPS2

Internal gear pumps EIPS2

Catalog excerpts

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