Description
NP Drumfilter ? Type F (Frame / Concrete Channel)
The Type F Drumfilter is designed for direct installation into an existing concrete channel. The stainless steel frame sits in the channel and the drum spans across it, allowing water to flow through as it would in a recirculating loop. No separate tank is required, reducing the civil footprint and cost.
Available Sizes
| Size Group | Drum Diameter | Sections | Moving Backwash |
|---|---|---|---|
| F802 ? F808 | 800 mm | 2 ? 8 | Fixed spray header |
| F1203 ? F1209 | 1200 mm | 3 ? 9 | Fixed spray header |
| F1212 ? F1224 | 1200 mm | 12 ? 24 | Moving Backwash (standard) |
| F1616 ? F1640 | 1600 mm | 16 ? 40 | Moving Backwash (standard) |
| F2030 ? F2050 | 2000 mm | 30 ? 50 | Moving Backwash (standard) |
Configuration ? Choose to Suit Your Needs
- Size: F802 through F2050 ? matched to your channel dimensions and flow rate
- Filter cloth opening: 10 ?m to 100 ?m (polyester standard; SS316 mesh on request)
- Filter panel type: PG or PL
- Material grade: EN 1.4301 (SS304) | EN 1.4404 (SS316) | EN 1.4462 (Duplex)
- Mirror image: Available (+5,000 SEK)
Optional Add-ons
- Grundfos CRN backwash pump package with priming tank (PP or steel)
- Control system Type A or Type B (VFD)
- Wing walls and weir extensions (FRP, 900 / 1200 / 1800 mm lengths) for sealing frame to channel walls
- Filtrate level weir (1500 mm or 3000 mm)
- Flanged pipe connections DN100?DN700
- Splash protection rubber skirts
- Sludge trough flushing kit
Key Features
- Installs directly into concrete channels ? no separate tank civil works needed
- Full size range up to 2000 mm diameter for very high flow rates
- Moving Backwash standard from F1212 ? 20% less backwash water, extended cloth life
- Peripheral lubricant-free chain drive
- Modular construction ? easier transport and on-site assembly for larger models
- All design and manufacturing in Sweden
Manufacturer: NP Innovation AB, Malm?, Sweden | www.npinnovation.se
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