e-SH

Summary

Product Identification

The Lowara e-SH Series consists of horizontal centrifugal electric pumps, designed according to EN 733. These are single-stage, end-suction electro-pumps with an axial flanged suction port, radial flanged discharge, and horizontal shaft.

Key features include:

• Constructed entirely from AISI 316 stainless steel.
• Equipped with IE3 efficiency motors (for three-phase from 0.75 kW).
• Back pull-out design, allowing impeller, bracket, and motor extraction without disconnecting the pump body from piping.
• Interchangeable mechanical seals.
• Discharge ports range from DN25 to DN80.

Available constructions:

• Extended shaft: Close-coupled via an adaptor bracket with the impeller keyed directly to a special motor shaft extension.
• Frame mounted: Flexible-coupled with a bracket, support, flexing coupling (spacer on demand), aligning, and anchoring base.
• Stub shaft: Rigid-coupled with a bracket, an adaptor, and a rigid coupling keyed to the standard motor shaft extension.
• Bare shaft pump: Version without a driver, suitable for coupling with a standard electric motor.

Operating Limits

• Fluid temperature range:
  • Standard version (with FKM gaskets): -10 to +120 °C
  • Versions on request (with EPDM gaskets): -30 to +120 °C
• Maximum operating pressure:
  • 12 bar @ 50 °C
  • 10 bar @ 120 °C
• Nominal pressure: 12 bar
• Maximum ambient temperature (motor): 40 °C
• Rotation: Anti-clockwise when facing the pump’s suction port.

Feed Water

The e-SH Series is suitable for handling water as well as non-aggressive or moderately aggressive fluids. Its AISI 316 material configuration makes it ideal for pumping mildly aggressive liquids or pumping in aggressive environments.

Mechanical / Hydraulic

• Maximum delivery:
  • Up to 240 m³/h for 2 poles range.
  • Up to 144 m³/h for 4 poles range.
• Maximum head:
  • Up to 117 m for 2 poles range.
  • Up to 31 m for 4 poles range.
• Hydraulic performance: Compliant with ISO 9906:2012 Grade 3B.
• Connection dimensions: According to EN 733 (except for ESH 25 models).
• Counter-flanges: Not included with the pump.

Mechanical Seal (dimensions according to EN 12756 and ISO 3069):

• Standard version: Ceramic/Carbon/FKM (Fluoro-elastomer).
• Other types available:
  • Ceramic/Carbon/EPDM
  • SiC/Carbon/FKM
  • SiC/Carbon/EPDM
  • SiC/SiC/FKM
  • SiC/SiC/EPDM
• Pressure/Temperature Application Limits: See the official PDF for exact tabulated values and graphs.

Hydraulic Performance Range: Performance range charts for 60 Hz, 2 poles (approx. 3500 rpm) and 4 poles (approx. 1750 rpm) are provided graphically in the original document. See the official PDF for exact tabulated values.

Available Models: Lists of models for 60 Hz, 2 poles and 4 poles are provided in the original document, indicating availability for Extended shaft (ESHE), Stub shaft (ESHS), and Frame mounted (ESHF) versions. Some models are also available in single-phase versions. See the official PDF for exact tabulated values.

Electrical

• Motor type: Short-circuit squirrel-cage motor, enclosed construction with external ventilation (TEFC).
• Poles: Available in 2-pole and 4-pole ranges.
• Rated power:
  • From 1.1 to 75 kW for 2-pole range.
  • From 0.25 to 11 kW for 4-pole range.
• Protection degree:
  • IP55 as motor (EN 60034-5).
  • IPX5 as electro-pump (EN 60529).
• Insulation class: 155 (F).
• Efficiency level: IE3 (three-phase from 0.75 kW) according to IEC 60034-30 and IEC 60034-30-1.
• Electrical performances: According to EN 60034-1.
• Cable gland: Metric, according to EN 50262.
• Standard voltage (60 Hz):
  • Single-phase version: 1 x 220-230 V.
  • Three-phase version: 3 x 220-230/380-400 V.
  • Three-phase 2-pole specific:
    • 220-230/380-400 V for power up to 22 kW.
    • 220/380 V for WEG motors, power from 22 to 55 kW.
    • 380/660 V for power above 55 kW.
  • Three-phase 4-pole specific: 220-230/380-400 V.
• Overload protection:
  • Single-phase version: Built-in automatic reset overload protection.
  • Three-phase version: Overload protection to be provided by the user.
• PTC: Included as standard only for WEG motors (one per phase, 155 °C).

Motor Performance Tables: Detailed tables for single-phase and three-phase motors at 60 Hz (2-pole and 4-pole) are provided in the original document, including power, current, efficiency, and power factor. See the official PDF for exact tabulated values.

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Disclaimer: This summary is based on the extracted text and may not include all figures, footnotes, or the latest revisions from the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror