M 3102

Summary

Product identification

The Flygt 3102 series comprises submersible pumps designed for various wastewater and fluid transfer applications, operating at 50 Hz. The series includes several pump types and motor configurations:

• C-pump: Available with Standard Motor or Premium Efficiency Motor (IE3). Used for wastewater containing solids or fibered material, clean water, or surface water.
• D-pump: Features vortex hydraulic for liquids containing solids, abrasive media, or light wastewater.
• F-pump: A chopper pump with an S-shaped impeller and cutting function, suitable for liquid manure, heavily contaminated sewage, and sludge.
• M-pump: Equipped with a grinder device for wastewater containing solids that require maceration.
• N-pump: Available with Standard Motor or Premium Efficiency Motor (IE3). Designed for efficient pumping of clean water, surface water, and wastewater containing solids or long-fibered material, with sustained high efficiency. A specific "L" installation type is for mixed flow, high flow, and low head applications in column installations.

Non-explosion proof and explosion proof versions are available for most pump types.

Operating limits

• Liquid temperature: Maximum 40°C (104°F)
• Liquid temperature, warm water version: Maximum 70°C (158°F) (available as an option for non-explosion proof C, D, F, and N Standard pumps)
• Depth of immersion: Maximum 20 m (65 ft)
• pH of the pumped liquid: 5.5 – 14
• Liquid density: Maximum 1100 kg/m³

Electrical

• Frequency: 50 Hz
• Power supply: 3-phase
• Motor type:
  • Squirrel-cage induction motor (C, D, F, M, N Standard Motor)
  • Line started permanent magnet motor (LSPM) (C, N Premium Efficiency Motor IE3)
• Starting method:
  • Direct on-line
  • Star-delta
  • Soft starter
  • Variable Frequency Drive (VFD) (VFD not listed for M-pump)
• Number of starts per hour: Maximum 30
• Code compliance: IEC 60034-1
• Voltage variation:
  • Continuously running: Maximum ±5%
  • Intermittent running: Maximum ±10%
• Voltage imbalance between phases: Maximum 2%
• Stator insulation class: H (180°C, 356°F)
• Motor encapsulation: IP68 (N-pump only)
• Cables (Flygt SUBCAB®): Heavy-duty cables with 90°C conductor insulation rating, superior mechanical strength, high abrasion and tear resistance, and chemical resistance within pH 3-10, ozone, oil, and flame resistance. Used up to 70°C water temperature.
  • Direct-on-line start or Y/D start with two cables: 4 cores motor power cable with two twisted pair screened control cores. Cables < 10 mm² with unscreened control cores.
  • Y/D start: 7 cores motor power cable with two twisted pair screened control cores. Cables < 7G6 mm² with unscreened control cores.
  • Variable Frequency drive: Screened 4 screened cores motor power cable with four twisted pair screened control cores. (Not listed for M-pump)
• Monitoring equipment: Thermal contacts opening temperature 125°C (257°F). Optional leakage sensors in the stator housing (FLS) and oil housing (CLS).

Mechanical / hydraulic

Installation types

• P (Semipermanent, wet well): Pump installed on two guide bars, automatic discharge connection.
• S (Portable semipermanent, wet well): Hose coupling or flange for discharge pipeline connection.
• T (Vertical permanent, dry well): Flange connection to suction and discharge piping.
• Z (Horizontal permanent, dry well): Flange connection to suction and discharge piping.
• F (Free standing semipermanent, wet well - M-pump only): Pump placed on a firm surface.
• H (Semipermanent, wet well quick connection suspended - M-pump only): Incorporates integral non-return valve.
• L (Vertical semipermanent, wet well column pipe - N-pump only): Well divided into suction and discharge parts, pump end equipped with guide vanes.

Materials

• Major castings: Cast iron, gray (ASTM 35B, EN GJL-250)
• Lifting handle: Stainless steel (AISI 316L, EN 1.4404, 1.4432, …)
• Shaft: Stainless steel (AISI 431, EN 1.4057+QT800)
• Screws and nuts: Stainless steel, A4 (AISI 316L, 316, 316Ti, EN 1.4401, 1.4404, …)
• O-rings: Nitrile rubber (NBR) 70° IRH or Fluorinated rubber (FPM) 70° IRH (NBR only for M-pump).
• Oil (part no 901752): Medical white oil of paraffin type, fulfills FDA 172.878 (a).
• Pump housing: Cast iron, gray (ASTM 35B/GJL-250 or ASTM A 48 NO 30B/GJL-200, depending on alternative and pump type).
• Impeller:
  • C, D-pump: Cast iron, gray (ASTM 35B, EN GJL-250)
  • F-pump: Cast iron, nodular (EN GJS-400-18-LT)
  • M-pump: Cast iron, gray (ASTM 30B, EN GJL-200)
  • N-pump: Cast iron, gray (ASTM 35B, EN GJL-250), Cast iron, Hard-Iron™ (ASTM A 532 IIIA, EN GJN-HB555(XCR23)), or Stainless steel, Duplex (CD-4MCuN, EN 10283:2010 -1.4474)
• Wear ring (C-pump): Rubber material, NBR or Bronze (ASTM C924, EN CC491K, CC492K)
• Suction cover (F-pump): Cast iron, Hard-Iron™ (ASTM A 532 IIIA, EN GJN-HB555(XCR23))
• Cutter wheel (M-pump): Cast iron, Hard-Iron™ (ASTM A 532 IIIA, EN GJN-HB555(XCR23))
• Cutter plate (M-pump): Stainless steel
• Insert ring (N-pump): Cast iron, gray (ASTM 35B, EN GJL-250) or Cast iron, Hard-Iron™ (ASTM A 532 IIIA, EN GJN-HB555(XCR23))

Mechanical seals

Four alternatives are available, combining Aluminum oxide/Corrosion resistant cemented carbide and Corrosion resistant cemented carbide/Corrosion resistant cemented carbide for inner and outer seals.

Surface treatment

• Priming: Painted with a primer (see internal standard M0700.00.0002).
• Finish: Navy gray color NCS 5804-B07G, two-component high-solid top coating (see internal standard M0700.00.0004 for standard painting and M0700.00.0008 for special painting).

Options

• Warm liquid version (non-explosion proof versions, for C, D, F, N Standard)
• Leakage sensor in the stator housing (FLS)
• Leakage sensor in the oil housing (CLS)
• Surface treatment (Epoxy)
• Zinc anodes
• Other cables

Accessories

• Discharge connections, adapters, hose connections, and other mechanical accessories.
• Electrical accessories such as pump controller, control panels, starters, monitoring relays, and cables.

Performance Data

The datasheet provides detailed motor rating and performance curves for each pump type and motor configuration (e.g., C-pump Standard Motor, C-pump Premium Efficiency Motor (IE3), D-pump MT, D-pump HT, etc.). These tables specify parameters such as Rated power (kW, hp), Curve/Impeller No, Revolutions per minute (rpm), Rated current (A), Starting current (A), Power factor (cos φ), and applicable Installation types for 400 V, 50 Hz, 3-phase operation. Star-delta starting current is noted as 1/3 of Direct on-line starting current.

See the official PDF for exact tabulated values and performance curves.

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Disclaimer: This summary is based on extracted text and may miss figures, footnotes, or the latest revisions. Contractual data must always match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror