Gravel and sand filter system
Solid mechanical foundation for water treatment
Our gravel and sand filter systems reliably remove high concentrations of dissolved solids, sediments and turbidity-causing substances from water. Whether classical depth filtration for source water or protection stage for ultrafiltration or reverse osmosis systems – we ensure the water quality you need.
Prevention of costly contamination and wear
The filter bed stops sand, rust and suspended solids before they reach pumps, valves and membranes. This prevents clogging, deposits and premature replacement of expensive downstream systems.
Automatic operation without manual intervention
Sensor-controlled backwashing with water and air restores full filter capacity. No manual intervention, no continuous chemical addition. Pure mechanical separation so you can focus on your core process.
Benefits of Morselt Gravel and Sand Filter System
- Highly effective removal of solids: Protects pumps, valves and membranes against wear and clogging
- High dirt-holding capacity: Multiple layers in the filter bed provide long operating periods between backwash cycles
- Economical and chemical-free: Pure mechanical process without continuous chemical consumption
- Automatic regeneration: Pressure-controlled backwashing restores filter capacity without intervention
- Flexible applicability: Can be used as a standalone system or as a protection stage for ultrafiltration and reverse osmosis
- Reliable removal: Stops sand, silt, clay, rust and manganese particles, flocs and colorants
- Long-term reliability: Robust pressure vessels in stainless steel, GRP or plastic-lined steel
Technical specifications (standard)
- Operating principle: Depth filtration in layered filter bed (top to bottom)
- Filter medium: Quartz sand, filter gravel or hydro-anthracite, individually tailored to your raw water analysis
- Pressure vessels: High-quality stainless steel, corrosion-resistant GRP or plastic-lined steel
- Automatic control: Backwashing based on differential pressure or time control via pneumatic and electric valves
- Air-water backwashing: Integrated blower for intensive filter bed cleaning and optimal backwash effect
- Grain size and layer thickness: Tailored to concentration and composition of contamination
Configurations and options
Single filter (standard)
Uniform grain distribution of filter sand or filter gravel. Cost-effective basic version for water streams with homogeneous and consistent particle sizes. Suitable for many common applications.
Multi-layer filter (multimedia)
Combination of different densities and grain sizes – for example anthracite and quartz sand. Dirt removal takes place throughout the entire filter bed, allowing higher filter rates and longer operating periods between backwashes.
Dynamic sand filter (continuous)
Sand filtration according to the counter-current principle. An integrated high-capacity pump transports and washes the loaded sand continuously during the filtration process. Ideal for high flow rates and continuous operation.
