4040 Brackish Water RO Membrane Element 2500 GPD 99.5% Salt Rejection Industrial Filtration

Price Negotiable
Price: USD 120-180 / Piece
MOQ: 5 Pieces
Delivery Time: 3-5 working days for stock, 15-20 days for production
Brand: Fenigal/OEM
Product Description

4040 Brackish Water Reverse Osmosis Membrane Element

Our 4040 brackish water RO membrane element delivers 2500 GPD permeate flow with a 99.5% minimum NaCl rejection rate. Designed with advanced thin-film composite (TFC) polyamide membrane technology, this element ensures reliable and consistent desalination performance for industrial and commercial water treatment systems.

Key Features

  • High salt rejection rate exceeding 99.5% for NaCl
  • 2500 GPD (9.5 m³/day) nominal permeate flow
  • Thin-film composite (TFC) polyamide membrane material
  • Low fouling design with wide pH tolerance range
  • Standard 4040 form factor interchangeable with major brands
  • Operating pressure as low as 150 psi for energy efficiency
  • Food-grade materials compliant with NSF standards
  • Individually vacuum sealed and tested before shipment

Technical Specifications

ParameterSpecification
Model Size4040 (4.0" x 40")
Membrane TypeThin-Film Composite (TFC) Polyamide
Permeate Flow Rate2500 GPD (9.5 m³/day)
Minimum Salt Rejection99.5% (NaCl)
Active Membrane Area85 ft² (7.9 m²)
Feed Spacer Thickness28 mil (0.71mm)
Operating Pressure150 psi (1.03 MPa)
Maximum Operating Pressure600 psi (4.14 MPa)
Maximum Feed Flow Rate16 GPM (3.6 m³/h)
pH Operating Range2-11 (continuous), 1-13 (cleaning)
Maximum Feed SDISDI 5
Free Chlorine Tolerance< 0.1 ppm

Applications

  • Industrial brackish water desalination
  • Commercial RO drinking water systems
  • Boiler feed water preparation
  • Electronics manufacturing ultrapure water
  • Food and beverage process water
  • Pharmaceutical water purification systems

Each element individually vacuum-sealed in food-grade polyethylene bag, packed in reinforced export carton. OEM branding available. Compatible with DOW Filmtec, Hydranautics, Toray, CSM, and Vontron 4040 housings.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Wuxi Fenigal Science & Technology Co., Ltd.
Location 606#, Building-B, Dicui Rd. 100, Binhu, Wuxi, Jiangsu, China
Contact Person Joe Zu

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