E-MPS

Summary

Product identification

The E-MPS series consists of 5” close-coupled multi-stage submersible pumps for clean water, featuring a built-in electronic pressure sensor for automatic control. E-MPSM models include a built-in capacitor.

Designation Example (E-MPSM 304):

• E: Electronic
• MPS: Series
• M: Single-phase (without three-phase indication)
• 3: Rated capacity in m³/h
• 04: Number of impellers

Operating limits

• Liquid temperature: 0 °C to +35 °C
• Minimum internal diameter of well: 140 mm
• Minimum immersion depth: 100 mm
• Maximum immersion depth: 20 m (with suitable cable length)
• Duty: Continuous

Feed water

The pump is designed for clean water. The suction strainer prevents the entrance of solids with a diameter bigger than 2 mm.

Electrical

• Motor: 2-pole induction motor, 50 Hz (n ≈ 2900 rpm)
• Voltage: Single-phase 230 V ± 10%
• Protector: Thermal protector
• Capacitor: Incorporated (for E-MPSM models)
• Insulation class: F
• Protection: IP X8 (for continuous immersion)
• Pump Cable: 07BB-F, 3G1+4x0,34 mm², length 23 m
• Power Supply Cable: H07RN8-F, 3G1,5 length 1,5 m with plug CEI-UNEL 47166

Protections:

• Dry-run protection
• Overload control and overheating motor control
• Pump blockage
• Power supply control
• Starts per hour control

Features:

• Motor power control
• Voltage and current control
• Monitoring of maximum starting current

Mechanical / hydraulic

Construction:

• Hydraulics located below the motor, with the motor cooled by the pumped fluid.
• Safe operation is possible with the motor only partially submerged.
• Double shaft seal with oil chamber.
• Suction strainer prevents solids with diameter bigger than 2 mm.

Materials:

• Delivery casing: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
• External jacket: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
• Suction strainer: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
• Motor jacket: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
• Non-return valve: POM - POLYACETAL
• Stage casing: PPO-GF20 (Noryl)
• Impeller: PPO-GF20 (Noryl)
• Shaft: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
• Capacitor cover: PPS Polymer (Grivory)
• Oil chamber cover: PPS Polymer (Grivory)
• Support ring preload: PPS Polymer (Grivory)
• Preload ring stages: PPS Polymer (Grivory)
• Upper mechanical seal: Steatite, carbon, NBR
• Lower mechanical seal: Carbone, carburo di silicio, NBR
• Seal lubrication oil: Oil for food machinery and pharmaceutic use

Dimensions and Weights (with 23 m cable length):

• DN2 (Discharge connection): G 1 1/4
• Overall length (fM): Ranges from 659.2 mm to 732.2 mm
• Diameter (j1): 7 mm
• Diameter (l5): 133 mm
• Weight: Ranges from 15.5 kg to 17.8 kg

See the official PDF for exact tabulated values for specific models (E-MPSM 304, 305, 306, 504, 505).

Performance Data: See the official PDF for exact tabulated values in the Coverage Chart and Characteristic Curves. Test results are with clean cold water, without gas content.

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

Official datasheet (PDF)

Lenntech datasheet mirror