XLE PRO-2540

2.5"x40" | 1200 GPD | Extra-Low Energy 125 psi | Tape Wrap | FilmTec Membrane | Replaces XLE-2540

In Stock for Immediate Shipment.
XLE PRO-2540
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Brand DOW Filmtec
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AMI Membranes are Made-In-USA with a large inventory in stock for immediate shipment & are competitively priced alternatives to DuPont membranes.

DOW FilmTec Membrane Elements

DUPONT FILMTEC™  XLE PRO-2540 Low Energy Brackish Water Reverse Osmosis Membrane Element

FILMTEC XLE PRO-2540 Elements offer better system performance and economics for small commercial systems by operating at very low applied pressure. DUPONT DOW FILMTEC XLE PRO-2540 elements are tape-wrapped, built with the same high quality membranes and materials of construction as industrial elements, except for the hard outershell, and are more economical for commercial systems with one or two elements per housing. It may be cleaned over a wide pH range (pH 1-13) for the most effective cleaning. In addition to high quality water and low energy costs, FILMTEC membranes also deliver savings by providing long lasting and reliable performance.

FILMTEC Brackish Water Reverse Osmosis Elements can separate salts from water and are produced with an automated fabrication process for precision, consistency, and reliability. FILMTEC RO membranes build on a tradition of leadership in the thin-film composite membrane industry and meet the challenges of higher rejection in lower-pressure operations.

Product Specifications


DOW and Dupont merged and DOW FilmTec membranes are now sold as DUPONT FilmTec. FilmTec XLE-2540 membrane element has been discontinued by the manufacturer. XLE PRO-2540 is the direct replacement.


Specifications for XLE PRO-2540

FilmTec Product: XLE PRO-2540
FilmTec Part Number: 2082909
Replaces FilmTec Parts: XLE-2540
Size (Approximate): 2.5" Dia. x 40"L
Flow Rate: 1,200 gpd (4.5 m³/d)
Applied Pressure: 125 psig (8.7 bar)
Stabilized Salt Rejection: 99.0%
Minimum Salt Rejection: 97.0%
Single Element Recovery: 15%
Exterior: Tape-Wrapped
Membrane Type:
Polyamide Thin-Film

Permeate flow and salt rejection based: 2,000 ppm NaCl feed stream, 77°F, 15% recovery, 125 psig.

Operating Limits for XLE PRO-2540

Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 600 psig (41 bar)
Maximum Pressure Drop: 13 psig (0.9 bar)
pH Range, Continuous Operation*: 2-11
pH Range, Short-Term Cleaning**: 1-13
Maximum Feed Silt Density Index: 5
Fere Clorine Tolerance***: <0.1ppm

*Maximum temperature for continuous operation above pH 10 is 95°F
**Refer to cleaning guidelines.
***Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow recommends removing residual free chlorine by pretreatment prior to membrane exposure.

Benefits of FilmTec Commercial RO Membranes

  • Lower Operating Pressure reduces power consumption, lowering the cost of equipment and operation.
  • Reverse Osmosis water treatment removes up to 99% of total dissolved solids from water.
  • High flux results in high yields
  • High rejection provides good water quality
  • FilmTec performance and quality

Common Applications for FilmTec XLE PRO-2540 Commercial RO Membranes:

  • Commercial Water Treatment Systems
  • Food Service
  • Medical and Research Institutions
  • Hospitality Industry

Physical Dimensions of FilmTec XLE PRO-2540

DOW FilmTec Commercial RO Membrane Drawing  
A 40.0 (1,016)
B 1.19 (30)
C 0.75 (19)
D 2.4 (61)

XLE PRO-2540 Fits nominal 25x40 size pressure vessels.