Intrpduction
At Lefilter, we've redefined water purification standards with our state-of-the-art shallow sand filtration systems. As an industry pioneer with many years of specialized manufacturing experience, we deliver filtration solutions that consistently outperform competitors in efficiency, durability, and cost-effectiveness.

Cutting-Edge Filtration Technology
1. Proprietary 5-Stage Filtration Process:
Smart Pre-Filtration - Automatic debris screening removes large particulates
Dynamic Flow Distribution - Patented vortex technology ensures optimal water dispersion
Precision Media Bed - Multi-layer graded silica sand with depth filtration
Advanced Underdrain System - Non-clogging design for consistent flow
Intelligent Backwash - AI-powered cleaning cycles optimize performance
2. Industry-Leading Performance Metrics
✔ 99.9% particle removal down to 5 microns
✔ 60% longer filter cycles than industry average
✔ 50% less backwash water required
✔ 0.05 NTU output water clarity standard
✔ 10+ year lifespan on all critical components

Custom Solutions for Every Application
1. Municipal Water Treatment:
NSF 61 certified systems
Scalable designs from 10 to 1,000 m³/hour
Fully automated control systems
2. Industrial Process Water:
Chemical-resistant materials
High-temperature options (up to 90°C)
Explosion-proof configurations
3. Agricultural Irrigation:
Sand/gravel hybrid media options
Solar-powered autonomous units
Anti-clogging drip irrigation protection
Technical Specifications
1. Standard Models:
Flow rates: 15-500 m³/h
Operating pressure: 2-8 bar
Connections: DN50-DN300
Materials: FRP, 304/316L SS, coated carbon steel
2. Premium Upgrades:
IoT monitoring with cloud analytics
Self-cleaning inlet screens
Dual-media options (anthracite/sand)
Stainless steel underdrain systems

Why Global Leaders Choose Us
1. For Engineering Teams:
Complete hydraulic calculations
3D CAD models for integration
Performance guarantee contracts
2. For Operations Managers:
30% lower lifecycle costs
Predictive maintenance alerts
Remote performance monitoring
3. For Procurement:
Worldwide certifications (CE, NSF, ISO, WRAS)
Just-in-time manufacturing
Global spare parts network
Recent Project Highlights
1. Beverage Manufacturer:
Achieved 99.95% filtration efficiency
Reduced water waste by 45%
Cut energy costs by 30%
2. Municipal Water Plant:
Handled peak demand of 800 m³/h
Extended media life to 8 years
Reduced maintenance by 60%
3. Our Quality Promise
Every system undergoes:
✓ Computational fluid dynamics testing
✓ Real-world condition simulations
✓ 72-hour continuous operation trials
✓ Final inspection by senior engineers