NW 340 Sediment Pre-Filter
A high-performance pre-treatment barrier designed for maximum clarity and staged filtration with challenging water sources.
Technical specifications
View all- Max. pressure
- 16 bar
- Warranty
- 2+8 Years
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Free installation
2+8 Year Warranty
24/7 Technical Support
High capacity and flexible staged protection
The Rainwater NW 340 is a Made in Belgium system specially engineered for facilities requiring high flow rates and for water sources with heavy contamination loads (well water, rainwater harvesting systems). Offering two different housing and connection options, it delivers an impressive water flow of 10 to 12 m³ per hour. Its special centrifugal (cyclonic) technology separates coarse sediment by centrifugal force and directs it to the bottom of the bowl, preventing premature clogging of the filter. Combined with different micron ratings, it provides an ideal basis for staged filtration (coarse first, then fine).
Flexible connection and two housing sizes
Provides maximum compatibility with 1 1/4″ (10 m³/h) or 1 1/2″ (12 m³/h) connection and housing options to suit your project's flow requirements.
Ideal for staged filtration
Installed singly on mains water, or in series (staged) on well water and rainwater, it is the ideal system for reducing a heavy sediment load step by step.
Centrifugal pre-filtration
Its advanced cyclonic design separates heavy sediment before it touches the filter element, minimising operating and maintenance costs.
Extended filtration surface
With a huge surface area of up to 1010 cm², it maximises dirt-holding capacity and significantly extends filter replacement intervals.
Highlights
Pressure loss chart
Pressure loss (bar) by flow rate; shows how much pressure loss the filter causes at each flow rate.
Easy maintenance
The bowl and filter element can be removed for easy cleaning or replacement.
NW 340 Sediment Pre-Filter
Adding value to your life with certification to international standards
The confidence of flawless quality: freshness and peace of mind for everyday life.
CE certificate
FDA certificate
Water Quality
TÜV Cert ISO 14001
NSF certificate- TÜV Cert ISO 9001
Düzen Norwest
Hacettepe University
Istanbul Technical University
Our systems use PARKER – LIQUIFIT – LEGRIS brand components and comply with the US Food and Drug Administration (FDA) regulations, CFR 21.
Product description
Sand, mud, rust and sediment carried in mains, well or rainwater wear down plumbing, pumps and downstream purification equipment. The NW 340 is a sediment pre-filter fitted at the water inlet that mechanically traps these solid particles.
Who is the NW 340 for?
For well and rainwater systems, staged filtration and industrial facilities. With a 1 1/4” or 1 1/2” connection, it provides an average flow rate of 10 / 12 m³/h.
How does it work?
As water passes through the filter element, the 25-micron pores let the water through and trap larger particles; this is an entirely physical, not chemical, straining process. The multi-layer filter structure holds dirt better even under heavy sediment loads, and the large filtration surface provides high flow and low pressure loss.
On its own, a sediment filter does not remove dissolved chemicals such as chlorine, or microorganisms; for that, it is used as a pre-filter ahead of softening, activated carbon, reverse osmosis and UV systems, protecting them.
Technical data
- Connection size: 1 1/4” or 1 1/2”
- Average flow rate: 10 / 12 m³/h
- Filtration precision: 25 µm
- Filtration surface: 770 / 1010 cm²
- Operating pressure: 10 bar (max. 16 bar)
- Maximum operating temperature: 50 °C
Installation, maintenance and warranty
It is installed on the water inlet line. The filter element can be cleaned or replaced; you can tell the filter is full when the pressure difference increases and the flow drops. The product is covered by a 2+8 year warranty.
Technical specifications
Capacity
- Average flow rate
- 10 m³/h (1 1/4") / 12 m³/h (1 1/2")
Purification
- Standard filtration precision
- 25 µm (optionally 1 to 100 µm)
- Filtration surface
- 770 cm² (1 1/4") / 1010 cm² (1 1/2")
- Country of manufacture
- Belgium
Power and size
- Weight
- 2.7 kg (1 1/4") / 2.9 kg (1 1/2")
- Connection size
- 1 - 1/4” or 1 - 1/2”
- Operating pressure
- 10 bar
- Max. operating pressure
- 16 bar
- Max. operating temperature
- 50 °C
General
- Brand
- Rainwater
- Model
- NW 340
- Warranty
- 2+8 Years
- Area of use
- Well and Rainwater Systems, Staged Filtration, Industrial Facilities
- Distributor
- Rainwater Dış Tic. San. ve Tic. A.Ş.
Other sediment pre-filtration
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Frequently asked questions
What does the NW 340 do?
It mechanically traps solid particles in the water such as sand, mud, rust and sediment, protecting the plumbing and downstream purification equipment.
Does the NW 340 remove chlorine or bacteria?
No. A sediment filter only traps solid particles; chlorine requires activated carbon, and microorganisms require UV or reverse osmosis.
What are its flow rate and connection size?
With a 1 1/4” or 1 1/2” connection, it provides an average flow rate of 10 / 12 m³/h.
When should the filter be replaced?
As the filter fills up, the pressure difference between inlet and outlet increases and the flow drops; this indicates that it is time for cleaning or replacement.
How long is the warranty?
It is covered by a 2+8 year warranty.