Datasheet summary
Filtra-N
PDF datasheet mirror for Filtra-N (KSB Pumps). Verify with OEM before design.
Summary
Product identification
The KSB Filtra N is a type series of recirculation pumps designed for swimming pool filter systems.
- Type Series: Filtra N
- Designation Example: Filtra N 6 E
- Designation Key:
- Filtra N: Type series
- Size: Rated flow in m³/h (e.g., 6, 8, 12, 14, 18, 22, 24, 30)
- Drive:
- D: Three-phase motor
- E: Single-phase AC motor
Operating limits
- Flow rate (Q): ≤ 36 m³/h (≤ 10 l/s)
- Head (H): ≤ 21 m
- Fluid temperature (T): ≤ +35 °C
- Operating pressure (pᵈ): ≤ 2.5 bar
Feed water
- Main applications: Swimming pools
- Fluids handled:
- Clear water
- Swimming pool water¹⁾
- Not suitable for: Seawater (35 g/l)
¹⁾ Swimming pool water parameters: 0.4 to 1.4 mg/l free chlorine, combined chlorine ≤ 0.6 mg/l, pH 6.9 to 7.7, water hardness 10 to 30 °dH, salt content ≤ 7 g/l.
Electrical
- Drive:
- Surface-cooled
- Enclosure IP44
- Thermal class F
- Single-phase AC motor:
- 230 V
- Temperature switch with automatic reset and start-up
- Three-phase motor:
- 230/400 V
Technical Data (50 Hz)
| Size | Suction side | Discharge side | P1 [kW] (1~230 V) | PN [kW] (1~230 V) | IN [A] (1~230 V) | P1 [kW] (3~230 V) | PN [kW] (3~230 V) | IN [A] (3~230 V) | P1 [kW] (3~400 V) | PN [kW] (3~400 V) | IN [A] (3~400 V) | Mass [kg] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 E | G 2 | G 2 | 0.57 | 0.37 | 2.6 | - | - | - | - | - | - | 9.2 |
| 6 D | G 2 | G 2 | - | - | - | 0.56 | 0.55 | 1.9 | 0.56 | 0.55 | 1.1 | 9.2 |
| 8 E | G 2 | G 2 | 0.62 | 0.37 | 2.8 | - | - | - | - | - | - | 9.2 |
| 8 D | G 2 | G 2 | - | - | - | 0.61 | 0.55 | 2.1 | 0.61 | 0.55 | 1.2 | 9.2 |
| 12 E | G 2 | G 2 | 0.73 | 0.37 | 3.3 | - | - | - | - | - | - | 9.2 |
| 12 D | G 2 | G 2 | - | - | - | 0.66 | 0.55 | 2.3 | 0.66 | 0.55 | 1.3 | 9.2 |
| 14 E | G 2 | G 2 | 0.89 | 0.75 | 4.1 | - | - | - | - | - | - | 13 |
| 14 D | G 2 | G 2 | - | - | - | 0.80 | 0.75 | 2.8 | 0.80 | 0.75 | 1.6 | 11 |
| 18 E | G 2 | G 2 | 1.05 | 0.75 | 4.8 | - | - | - | - | - | - | 13 |
| 18 D | G 2 | G 2 | - | - | - | 0.97 | 0.75 | 3.1 | 0.97 | 0.75 | 1.8 | 11 |
| 22 D | G 2 | G 2 | - | - | - | 1.40 | 1.10 | 4.3 | 1.40 | 1.10 | 2.5 | 13.3 |
| 24 D | G 2 | G 2 | - | - | - | 1.60 | 1.10 | 4.8 | 1.60 | 1.10 | 2.8 | 13.3 |
| 30 D | G 2 | G 2 | - | - | - | 2.05 | 1.10 | 5.5 | 2.05 | 1.10 | 3.2 | 13.3 |
Mechanical / hydraulic
- Design:
- Centrifugal pump
- Single-stage
- Self-priming
- Horizontal installation
- Integrated pre-filter consisting of a filter basket with intermediate pipe; the filter can be hinged open in the middle to facilitate cleaning.
- Shaft seal: Mechanical seal
- Bearings: Motor runs in grease-lubricated rolling element bearings
- Connections: Suction side G 2, Discharge side G 2
- Materials:
- Pump casing: Polypropylene, 30 % glass fibre reinforced with stainless steel ring
- Diffuser: Polypropylene, 30 % glass fibre reinforced
- Impeller: Noryl GFN2
- Cover: PMMA
- Shaft: Chrome steel 1.4028
- Motor housing: Aluminium
- Discharge cover: Polypropylene, 30 % glass fibre reinforced
- Dimensions:
- Fixed dimensions: Ø 200, 195, Ø 12, 165, 200, 160, 295, 140, 100, 115 (all in mm).
- Overall length 'A' varies by size:
- 512.5 mm for 6E, 6D, 8E, 8D, 12E, 12D, 14D, 18D
- 524 mm for 12E, 14E, 18E
- 534 mm for 22D, 24D, 30D
Product benefits
- Corrosion-proof thanks to pump casing made of impact-resistant plastic material
- Maintenance-free and reliable due to mechanical seal
- Energy-efficient and low-noise operation of single-phase AC motor with integrated overload protection or three-phase motor
- Low-clogging, hinged filter basket of patented design
Scope of supply
- Pump set (depending on the model)
List of components
- Pump casing
- Cover
- Diffuser
- Diffuser plate
- Impeller
- Radial ball bearing
- Bonnet gasket
- Mechanical seal
- Filter basket
- Support foot
- Stator
- Protective switch
- Rotor
- Fan impeller
- Terminal box
- Capacitor
- Sealing elements and screws
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)
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.