MPS

Summary

Product identification

Calpeda MPS Series Multi-Stage Submersible Clean Water Pumps. These are 5-inch close-coupled multi-stage submersible pumps. MPSM models include a built-in capacitor, accessible via the delivery casing.

Applications

• Water supply from wells, tanks, or reservoirs.
• Domestic, civil, and industrial applications.
• Garden use, irrigation, and rainwater harvesting systems.

Operating limits

• Water temperature: up to 35 °C
• Minimum internal diameter of well: 140 mm
• Minimum immersion depth: 100 mm
• Maximum immersion depth: 20 m (with suitable cable length)
• Continuous duty
• Protection: IP X8 (for continuous immersion)
• Solids diameter: Suction strainer prevents solids larger than 2 mm

Mechanical / hydraulic

• Construction:
  • Hydraulics located below the motor, with the motor cooled by the pumped fluid.
  • Safe operation possible with the motor only partially submerged.
  • Double shaft seal with oil chamber.
  • Suction strainer prevents solids with diameter bigger than 2 mm.
  • Discharge connection: G 1 1/4
• Materials:
  • Delivery casing: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
  • External jacket: Stainless steel AISI 304
  • Suction strainer: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
  • Motor jacket: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
  • 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)
  • Preload ring stages: PPS Polymer (Grivory)
  • Support ring preload: PPS Polymer (Grivory)
  • Upper mechanical seal: Steatite, carbon, NBR
  • Lower mechanical seal: Carbon, silicon carbide, NBR
  • Seal lubrication oil: Oil for food machinery and pharmaceutic use
• Dimensions and Weights:
  • See the official PDF for exact tabulated values for specific models.

Electrical

• Motor:
  • 2-pole induction motor, 50 Hz (n ≈ 2900 1/min)
  • Insulation class F
  • Triple impregnation humidity-proof dry winding
  • Constructed in accordance with EN 60335-2-41
• Power Supply:
  • MPS (three-phase):
    • 230 V ± 10%
    • 400 V ± 10%
    • Cable: H07RN8-F, length 15 m, without plug.
  • MPSM (single-phase):
    • 230 V ± 10%
    • With thermal protector and incorporated capacitor.
    • Cable: H07RN8-F, length 15 m, with plug CEI-UNEL 47166.
    • Float switch MPSM.. CG available on demand.
• Performance Data:
  • See the official PDF for exact tabulated values for power (P1, P2), current (A), and capacitor values (μF) for specific models.
• Special Features on Request:
  • Other voltages.
  • Frequency 60 Hz (as per 60 Hz data sheet).
  • Cable length 20 m.
  • Motor suitable for operation with frequency converter.

Features

• Low cost installation: Immersed, without suction pipe and valves. The cylindrical suction strainer provides support for installation on flat surfaces or tank bottoms. Operates with 100 mm minimum water level.
• Greater Safety: Double shaft sealing with an oil chamber separates the motor from water, providing further protection against accidental dry operation.
• Low-Noise operation: The design of hydraulic parts, the water-filled shroud around the motor, and submerged operation ensure low noise.
• Reliable: Ball bearings and shaft are sized to reduce stresses, guaranteeing high reliability in any operating condition.
• Flexible: Allows inspection of the capacitor without disassembling the pump, through the delivery casing.
• Robust: Its robust stainless steel external construction allows for the pump to be suspended from the delivery pipe.
• Innovative: Designed to withstand water hammering and the ON-OFF operation of any valve located in the discharge line. Impacts generated by water hammering or valve closing are fully supported by the capacitor cover, relieving stresses on a specific support made on the stainless steel jacket, without affecting the plastic hydraulic part.

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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 complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror