1325

Summary

Product identification

This document describes the 1325, 50Hz Non-clog submersible pump.

Product description: A submersible pump designed for efficient pumping of clean water, surface water, and wastewater containing solids, with sustained efficiency over time.

Model variants:

• Non-explosion proof version: 1325.181
• Explosion proof version: 1325.090
• Head types:
  • 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. Automatic connection to the discharge.

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 data:

• 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])

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. Superior mechanical strength and high abrasion and tear resistant. 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. Superior mechanical strength and high abrasion and tear resistant. 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.

Monitoring equipment:

• Motor thermal contacts opening temperature: 140°C (284°F) for 21-18-2Z, 21-18-4Z

Motor rating (400 V, 50 Hz, 3-phase):

• Star-delta starting current is 1/3 of Direct on-line starting current.
• H – High head:
  • 13.5 kW (18.1 hp), 1455 rpm, 27 A rated, 145 A start, 0.82 cos φ (Curve/Impeller No 441)
  • 11 kW (14.8 hp), 1465 rpm, 23 A rated, 145 A start, 0.79 cos φ (Curve/Impeller No 442)
  • 9 kW (12.1 hp), 1470 rpm, 20 A rated, 145 A start, 0.74 cos φ (Curve/Impeller No 443)
• M – Medium head:
  • 13.5 kW (18.1 hp), 1455 rpm, 27 A rated, 145 A start, 0.82 cos φ (Curve/Impeller No 421)
  • 11 kW (14.8 hp), 1465 rpm, 23 A rated, 145 A start, 0.79 cos φ (Curve/Impeller No 422)
  • 11 kW (14.8 hp), 1465 rpm, 23 A rated, 145 A start, 0.79 cos φ (Curve/Impeller No 423)
  • 9 kW (12.1 hp), 1470 rpm, 20 A rated, 145 A start, 0.74 cos φ (Curve/Impeller No 424)
• S – Super high head:
  • 18 kW (24 hp), 2890 rpm, 32 A rated, 213 A start, 0.9 cos φ (Curve/Impeller No 260)
  • 15 kW (20 hp), 2910 rpm, 27 A rated, 213 A start, 0.89 cos φ (Curve/Impeller No 261)
  • 12 kW (16.1 hp), 2930 rpm, 22 A rated, 213 A start, 0.86 cos φ (Curve/Impeller No 262)
  • 9 kW (12.1 hp), 2950 rpm, 18 A rated, 213 A start, 0.8 cos φ (Curve/Impeller No 263)

Performance curves (Q vs H, P) are provided in the official PDF for each head type. See the official PDF for exact tabulated values and curves.

Mechanical / hydraulic

Major parts materials:

• 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)/ Aluminum oxide (Al₂O₃)
• Outer seal: Corrosion resistant cemented carbide (WCCR)/ Aluminum oxide (Al₂O₃)

Surface treatment:

• Black or blue two-component high-solid top coating.

Options:

• Leakage sensor in the stator housing (FLS)

Accessories (sold in kits):

• Installation equipment
• Mechanical accessories such as discharge connections, adapters, and hose connections
• Electrical accessories such as pump controller, control panels, starters, monitoring relays, and cables

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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)

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