Datasheet summary
BS 2125.181
PDF datasheet mirror for BS 2125.181 (Flygt Pumps). Verify with OEM before design.
Summary
Product identification
The Flygt 2125.181 is a submersible dewatering pump designed for tough operating conditions.
- Product code: 2125.181
- Installation: S
- Impeller characteristics: HT
- Discharge connection: 3”, 4”, 5”, 6”
- Primary applications: Dewatering building yards, draining flooded areas, and pumping liquids with high amounts of clay, stone chips, drilling fines, or heavy sediment.
Operating limits
- Liquid temperature: max +40° C
- Depth of immersion: max 20 m
- pH of the pumped liquid: pH 5 - 8
- Liquid density: max 1100 kg/m³
- Strainer hole size: 6 mm x 50 mm
Electrical
- Motor data: Squirrel cage 3-phase induction motor
- Frequency: 60 Hz
- Insulation class: H (+180° C)
- Voltage variation:
- Continuously running: max ± 5%
- Intermittent running: max ± 10%
- Voltage imbalance between phases: max 2%
- No. of starts/hour: max 15
- Monitoring equipment: Thermal contacts
- Cable: SUBCAB®
- Start type: Direct-on-line and Y/D start
- Rated output: 9.7 kW
- Speed of rotation: 3400 rpm
Rated and Starting Current (60 Hz)
| Voltage (V) | Rated current (A) | Starting current (A) |
|---|---|---|
| 230 | 32 | 203 |
| 460 | 16 | 114 |
| 575 | 13 | 91 |
| 600 | 12 | 85 |
Mechanical / hydraulic
- Materials:
- Outer casing: Aluminium
- Impeller: High chrome alloyed white cast iron
- Wear parts: Nitrile rubber
- Stator housing: Aluminium
- Strainer: Galvanized steel
- Shaft: Stainless steel
- O-rings: Nitrile rubber
- Mechanical face seals: Inner Corrosion resistant cemented carbide, Outer Corrosion resistant cemented carbide
- Weight: Total (excl. cable) 77 - 80 kg
- Approvals: EN 50014, EN 50018, EEX de IIB T3
- Options:
- Polyurethane-lined wear parts (POLY-LIFE®)
- Impeller (MT, HT) Stainless steel
- Starters
- Various cable sizes
- Zinc anodes
- Tandem connection
- Accessories:
- Mechanical: Adapters, hose connections
- Electrical: Pump controller, control panels, starters, monitoring relays, cables
Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF. Contractual data must always match the specific OEM PDF revision used for the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.