Summary

1320, 50Hz Submersible Pumps

This summary covers the technical specifications for the 1320 series of 50Hz submersible pumps, including both Vortex and Non-clog types.

General Specifications (Applicable to both Vortex and Non-clog types)

Operating limits

• Liquid temperature: Maximum 40°C (104°F)
• Depth of immersion: Maximum 20 m (65 ft)
• pH of the pumped liquid: 5.5 – 14
• Liquid density: Maximum 1100 kg/m³

Electrical

• Motor type: Squirrel-cage induction motor
• Frequency: 50 Hz
• Power supply: 3-phase
• Starting method:
  • Direct on-line
  • Star-delta
  • Variable Frequency Drive (VFD)
• Number of starts per hour: Maximum 15
• Code compliance: IEC 60034-1
• Voltage variation without overheating: ±10%, if it does not run continuously at full load
• Voltage imbalance between phases: Maximum 2%
• Stator insulation class: F (155°C [311°F])
• Monitoring equipment (Motor): Thermal contacts opening temperature 140°C (284°C) for 18-15-2Z, 18-15-4Z
• Cables:
  • Direct-on-line start or Y/D start with two cables: Flygt SUBCAB® - a heavy duty 4 cores motor power cable with two twisted pair screened control cores. Conductor insulation rating of 90°C. Chemical resistant within pH 3-10 and ozone, oil, and flame resistant. Used up to 70°C water temperature. Cables < 10 mm² with unscreened control cores.
  • Y/D start: Flygt SUBCAB® - a heavy duty 7 cores motor power cable with two twisted pair screened control cores. Conductor insulation rating of 90°C. Chemical resistant within pH 3-10 and ozone, oil, and flame resistant. Used up to 70°C water temperature. Cables < 7G6 mm² with unscreened control cores.

Mechanical / Hydraulic (Common aspects)

• Surface treatment: Black or blue two-component high-solid top coating.
• Options: Leakage sensor in the stator housing (FLS).
• Accessories:
  • Installation equipment (sold in kits)
  • Mechanical accessories such as discharge connections, adapters, and hose connections
  • Electrical accessories such as pump controller, control panels, starters, monitoring relays, and cables

Vortex Pump

Product identification

• Usage: A submersible pump, with vortex hydraulic, for liquids containing solids and abrasive media, or light wastewater.
• Type: Vortex
• Versions:
  • Non-explosion proof version: 1320.181
  • Explosion proof version: 1320.090
• Model variants:
  • H – High head
  • M – Medium head
• Installation types:
  • Free-standing: Portable semipermanent, wet well arrangement with hose coupling or flange for connection to the discharge pipeline.
  • Wet-well: Semipermanent, wet well arrangement with the pump installed on two guide bars. The connection to the discharge is automatic.

Mechanical / Hydraulic (Vortex specific)

• Materials (Major parts except mechanical seals):
  • Major castings: Cast iron, gray (ASTM 30B, EN GJL-200)
  • Pump housing: Cast iron, gray (ASTM 30B, EN GJL-200)
  • Impeller, alternative 1: Cast iron, gray (ASTM 35B, EN GJL-250)
  • Impeller, alternative 2: Cast iron, gray (ASTM 30B, EN GJL-200)
  • Lifting eye bolt: Steel electro zinc coated (EN 10084 - C15E)
  • Lifting handle: Stainless steel (AISI 304, EN 1.4301)
  • Shaft: Stainless steel (AISI 431, EN 1.4057+QT800)
  • Screws and nuts: Stainless steel, A2 (AISI 304, EN 1.4301, 1.4306, 1.4307, 1.4311)
  • O-rings: Nitrile rubber (NBR) 70° IRH
  • Oil, part no 901752: Medical white oil of paraffin type. Fulfills FDA 172.878 (a)
• Mechanical seals:
  • Inner seal: Carbon (CSb)/ Corrosion resistant cemented carbide (WCCR)
  • Outer seal: Corrosion resistant cemented carbide (WCCR)/ Corrosion resistant cemented carbide (WCCR)

Electrical (Vortex specific motor ratings)

• 400 V, 50 Hz, 3-phase Motor Ratings:
  • High Head (H) Models (Impeller No. 291, 292, 293, 294):
    • Rated power: 7.5 kW (10.1 hp), 6.2 kW (8.3 hp), 4.8 kW (6.4 hp)
    • Revolutions per minute: 2895 rpm, 2915 rpm, 2935 rpm
    • Rated Current: 14 A, 12 A, 9.8 A
    • Start current: 107 A
    • Power Factor (cos φ): 0.88, 0.85, 0.8
  • Medium Head (M) Models (Impeller No. 481, 483, 484):
    • Rated power: 5.9 kW (7.9 hp), 4.5 kW (6 hp), 3.5 kW (4.7 hp)
    • Revolutions per minute: 1435 rpm, 1455 rpm, 1465 rpm
    • Rated Current: 13 A, 10 A, 8.8 A
    • Start current: 60 A
    • Power Factor (cos φ): 0.81, 0.75, 0.68
  • Star-delta starting current is 1/3 of Direct on-line starting current.
  • Installation types: FS (Free-standing), WW (Wet-well).

Non-clog Pump

Product identification

• Usage: A submersible pump for efficient pumping of clean water, surface water, and wastewater containing solids. The pump is designed for sustained efficiency over time.
• Type: Non-clog
• Versions:
  • Non-explosion proof version: 1320.181
  • Explosion proof version: 1320.090
• Model variants:
  • H – High head
  • M – Medium head
  • S – Super high head
• Installation types:
  • Free-standing: Portable semipermanent, wet well arrangement with hose coupling or flange for connection to the discharge pipeline.
  • Wet-well: Semipermanent, wet well arrangement with the pump installed on two guide bars. The connection to the discharge is automatic.

Mechanical / Hydraulic (Non-clog specific)

• Materials (Major parts except mechanical seals):
  • Major castings: Cast iron, gray (ASTM 30B, EN GJL-200)
  • Pump housing: Cast iron, gray (ASTM 30B, EN GJL-200)
  • Impeller: Cast iron, gray (ASTM 30B, EN GJL-200)
  • Lifting eye bolt: Steel electro zinc coated (EN 10084 - C15E)
  • Lifting handle: Stainless steel (AISI 304, EN 1.4301)
  • Shaft: Stainless steel (AISI 431, EN 1.4057+QT800)
  • Screws and nuts: Stainless steel, A2 (AISI 304, EN 1.4301, 1.4306, 1.4307, 1.4311)
  • O-rings: Nitrile rubber (NBR) 70° IRH
  • Oil, part no 901752: Medical white oil of paraffin type. Fulfills FDA 172.878 (a)
• Mechanical seals:
  • Inner seal: Carbon (CSb)/ Corrosion resistant cemented carbide (WCCR)
  • Outer seal: Corrosion resistant cemented carbide (WCCR)/ Corrosion resistant cemented carbide (WCCR)

Electrical (Non-clog specific motor ratings)

• 400 V, 50 Hz, 3-phase Motor Ratings:
  • High Head (H) Models (Impeller No. 441, 442, 443):
    • Rated power: 5.9 kW (7.9 hp), 4.5 kW (6 hp), 3.5 kW (4.7 hp)
    • Revolutions per minute: 1435 rpm, 1455 rpm, 1465 rpm
    • Rated Current: 13 A, 10 A, 8.8 A
    • Start current: 60 A
    • Power Factor (cos φ): 0.81, 0.75, 0.68
  • Medium Head (M) Models (Impeller No. 420, 422, 424):
    • Rated power: 5.9 kW (7.9 hp), 4.5 kW (6 hp), 3.5 kW (4.7 hp)
    • Revolutions per minute: 1435 rpm, 1455 rpm, 1465 rpm
    • Rated Current: 13 A, 10 A, 8.8 A
    • Start current: 60 A
    • Power Factor (cos φ): 0.81, 0.75, 0.68
  • Super High Head (S) Models (Impeller No. 260, 262, 264):
    • Rated power: 7.5 kW (10.1 hp), 6.2 kW (8.3 hp), 4.8 kW (6.4 hp)
    • Revolutions per minute: 2895 rpm, 2915 rpm, 2935 rpm
    • Rated Current: 14 A, 12 A, 9.8 A
    • Start current: 107 A
    • Power Factor (cos φ): 0.88, 0.85, 0.8
  • Star-delta starting current is 1/3 of Direct on-line starting current.
  • Installation types: FS (Free-standing), WW (Wet-well).

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Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

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