Description

DOW FILMTEC™ LC LE-4040 Reverse Osmosis Element

Maximize efficiency and minimize costs with the DOW FILMTEC™ LC LE-4040, a breakthrough low-energy reverse osmosis element specifically engineered for harsh water conditions. This commercial-grade membrane delivers exceptional water quality at significantly reduced operating pressures, making it the ideal choice for cost-conscious operations that refuse to compromise on performance.

Superior Low-Energy Performance

The LC LE-4040 represents DOW’s innovative approach to energy-efficient water treatment. Operating at just 125 psig—nearly half the pressure of conventional elements—this membrane dramatically reduces energy consumption while maintaining outstanding water quality. Your facility benefits from lower utility costs, reduced wear on system components, and extended equipment life.

Technical Excellence

Proven Performance Metrics:

• Permeate Flow Rate: 2,500 gpd (9.5 m³/d) at optimized low pressure
• Salt Rejection: 99.1% minimum, 99.2% stabilized performance
• Active Membrane Area: 94 ft² (8.7 m²) for maximum productivity
• Operating Pressure: 125 psig for energy-efficient operation

Built for Demanding Applications:

• Maximum operating temperature: 113°F (45°C)
• pH range: 2-11 for continuous operation
• Maximum feed flow rate: 16 gpm (3.6 m³/h)
• Compatible with standard 4-inch pressure vessels

Key Applications

Commercial Water Treatment: Perfect for hotels, restaurants, car washes, and office buildings requiring consistent, high-quality water at lower operational costs.

Industrial Process Water: Ideal for manufacturing operations, cooling tower makeup, and process applications where energy efficiency directly impacts profitability.

Municipal Systems: Excellent choice for smaller municipal installations and distributed treatment systems focused on operational sustainability.

Specialized Applications: Optimized for challenging feed water conditions where conventional membranes require excessive pressure or frequent maintenance.

Manufacturing Excellence

DOW’s fully automated element production ensures unmatched consistency and reliability. Every LC LE-4040 element undergoes rigorous quality control, minimizing variability and ensuring predictable performance across your entire system. This precision manufacturing translates directly to reduced total cost of ownership and simplified system management.

System Integration

The LC LE-4040 integrates seamlessly into existing 4-inch RO systems with standard DOW coupler hardware (part number 89055). The element’s 40-inch length and proven design parameters make retrofitting simple while delivering immediate energy savings and performance improvements.

Value Proposition

Choose the LC LE-4040 when your priority is combining excellent water quality with operational efficiency. This element excels in applications where feed water challenges would typically require high-pressure operation, instead delivering superior results through advanced membrane chemistry and innovative design.

The result is a membrane that doesn’t just meet specifications—it redefines what’s possible in low-energy reverse osmosis, delivering the quality your process demands while protecting your bottom line.

Contact our technical team for system design assistance, compatibility verification, and detailed performance projections for your specific application.