NW 25 Sediment Pre-Filter
High-flow protection for medium-sized buildings and commercial businesses, offering less maintenance, longer life and consistent water safety.
Technical specifications
View all- Filtration precision
- 25 µm
- Filtration surface
- 450 cm²
- Flow rate
- 5.5 m³/h
- Connection size
- 3/4” or 1”
Request received
Our experts will call you.
Free installation
2+8 Year Warranty
24/7 Technical Support
The ideal solution for commercial and building water inlets
With its increased flow capacity and extended filter surface, the Rainwater NW 25 provides excellent pre-filtration for the main water inlets of hotels, restaurants, schools and commercial buildings. Designed with European (Belgian) engineering, this premium sediment filter protects your plumbing and industrial process lines from sand, rust and particles, keeping your purification systems performing at their peak.
High flow capacity
Allowing 5.5 cubic metres (m³) of water through per hour, it provides uninterrupted service in multi-user buildings and commercial businesses without reducing water pressure.
Large filtration surface
Its 450 cm² filter area delays clogging even with water carrying a heavy particle load, giving your business less maintenance and long-term stability.
Centrifugal (cyclonic) technology
The special water flow design uses centrifugal force to settle heavy particles at the bottom of the filter housing. This lightens the load on the filter and maximises its service life.
High pressure resistance
With a maximum operating pressure tolerance of up to 16 bar, it forms a superior safety shield against mains pressure fluctuations.
Sediment pre-filtration system
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.
Premium quality, the best taste
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 rain water wear out plumbing, pumps and the purification equipment downstream. The NW 25 is a sediment pre-filter fitted at the water inlet that mechanically traps these solid particles.
Who is the NW 25 for?
Building inlets, hotels, restaurants and industrial lines. With a 3/4” or 1” connection, it provides an average flow rate of 5.5 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: 3/4” or 1”
- Average flow rate: 5.5 m³/h
- Filtration precision: 25 µm
- Filtration surface: 450 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
- 5.5 m³/h
Purification
- Standard filtration precision
- 25 µm
- Filtration surface
- 450 cm²
- Country of manufacture
- Belgium
Power and size
- Weight
- 1.2 kg
- Connection size
- 3/4” or 1”
- Operating pressure
- 10 bar
- Max. operating pressure
- 16 bar
- Max. operating temperature
- 50 °C
General
- Brand
- Rainwater
- Model
- NW 25
- Warranty
- 2+8 Years
- Suitable for
- Building Inlets, Hotels, Restaurants, Industrial Lines
- Distributor
- Rainwater Dış Tic. San. ve Tic. A.Ş.
Other sediment pre-filtration
Let's talk about NW 25
Our water treatment experts are here for you.
Request received
Our experts will call you.
Frequently asked questions
What does the NW 25 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 25 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 3/4” or 1” connection, it provides an average flow rate of 5.5 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.