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DuPont

XLE-440i DuPont FilmTec™ 14,000 GPD at 600 PSI 8 x 40 inch 99% Rejection Membranes

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DuPont FilmTec XLE-440i Extra Low Energy RO Membrane

 

The DuPont FilmTec™ XLE-440i is an advanced extra-low energy (XLE) brackish water reverse osmosis (RO) element, expertly engineered for plant managers seeking high-quality permeate water with the lowest possible operating costs.

This element is characterized by its high active membrane area of 440 square feet, which allows system designers to minimize capital expenditure by using fewer elements while maximizing productivity. The XLE-440i operates effectively at ultra-low feed pressures, significantly reducing energy consumption compared to standard high-rejection elements.

Key Features:

  • Extra Low Energy (XLE): Designed for high flow and low pressure, ensuring dramatic energy savings over the element's lifespan.

  • iLEC™ Interlocking End Caps: Reduces system operating costs and minimizes the risk of O-ring leaks, ensuring sustained water quality and easier installation.

  • Wide Cleaning pH Range: Offers superior durability and the most effective cleaning performance with tolerance across a wide pH range (1–13).

  • High Flow & Rejection: Provides a high nominal permeate flow of 14,000 GPD while achieving a stabilized salt rejection of 99.0%.

 

Technical Specifications Table

 

SPECIFICATION MEASUREMENT UNITS
Membrane Type Polyamide Thin-Film Composite TFC
Model Dimensions 8 x 40 IN
Active Area (Nominal) 440 (41) FT² (M²)
Permeate Flow (Nominal) 14,000 (53) GPD (M³/D)
Salt Rejection (Stabilized) 99.0 %
Min. Salt Rejection 97.0 %
Test Pressure 125 (8.6) PSI (BAR)
Feed Spacer Thickness 28 MIL
Max. Operating Pressure 600 (41) PSI (BAR)
Max. Operating Temp. 113 (45) °F (°C)
Cleaning pH Range (Short-Term) 1.0 - 13.0 pH

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