Compliance & Document Hub
- U.S. FDA Food Additive Status: Complies with 21 CFR § 177.2550 for use in processing liquid food and purifying water for food manufacturing when used unmodified and according to good manufacturing practices.
- Component Material Compliance: Element parts and materials in contact with potable water are compliant with 21 CFR § 170 to 199.
Executive Product Summary
The DuPont FilmTec BW30XFRLE-400/34i represents a benchmark in advanced reverse osmosis separation technology, explicitly engineered for challenging brackish water and industrial wastewater environments. At the core of this element is a proprietary polyamide thin-film composite membrane chemistry, meticulously formulated to deliver high-purity permeate while aggressively resisting biological and organic fouling. By optimizing the membrane surface area to 400 square feet (37 square meters) and integrating a specialized 34-LDP (Low Differential Pressure) feed spacer, DuPont ensures exceptional hydrodynamic performance. This configuration drastically reduces the accumulation of colloidal particles and biological foulants, resulting in a significantly lower overall differential pressure across the pressure vessel and extending operational run times between cleaning cycles.
One of the primary engineering advantages of the BW30XFRLE-400/34i is its remarkable energy efficiency. The element is designed to operate at up to 30% lower pressures compared to standard RO elements, generating an impressive permeate flow rate of 11,500 gallons per day (43.5 cubic meters per day) at a standard test pressure of just 150 psi (10.3 bar). This direct reduction in required feed pressure translates into substantial operational expenditure (OPEX) savings, decreasing the electrical load on high-pressure pumps without compromising permeate quality. The element guarantees a stabilized salt rejection rate of 99.3% and offers unparalleled filtration precision for complex contaminants, demonstrating excellent rejection metrics for silica, nitrates, ammonium, and critical per- and polyfluoroalkyl substances (PFAS).
From an operational and maintenance perspective, this membrane delivers extreme robustness. It boasts the industry’s widest chemical tolerance envelope, supporting short-term Cleaning-In-Place (CIP) procedures with a pH range of 1 to 13. This allows plant operators to utilize highly aggressive cleaning regimens to restore flux rates after severe fouling events, thereby extending the total lifecycle of the membrane and reducing the total cost of ownership (TCO). Furthermore, the BW30XFRLE-400/34i incorporates DuPont's proprietary iLEC (Interlocking End Cap) technology. This advanced mechanical coupling system physically binds adjacent membrane elements within the pressure vessel, eliminating the need for traditional sliding O-ring interconnectors. By removing this standard failure point, the iLEC system inherently mitigates the risk of O-ring rollout, localized leakage, and permeate contamination, ensuring maximum system integrity under demanding 600 psi (41 bar) maximum operating pressure conditions.
Applications & Industry Use-Cases
- Municipal Drinking Water Treatment: Extensively utilized in large-scale municipal desalination and purification plants, providing high-yield permeate flow (11,500 GPD) while effectively isolating stringent contaminants like PFAS and nitrates to meet strict regulatory drinking water standards.
- Industrial Wastewater Reuse: Engineered to handle high biological and organic loads, the 34-LDP feed spacer minimizes pressure drops and fouling, allowing heavy manufacturing facilities to recover and recycle process water efficiently.
- Food & Beverage Processing: Fully compliant with FDA 21 CFR § 177.2550 for liquid food processing, making this RO element ideal for concentrating liquid foods, purifying ingredient water, and ensuring safe potable water generation within food manufacturing sites.
- Utility Boiler Feedwater: Highly effective in demineralization systems, removing corrosive silica and dissolved solids to protect high-pressure boiler systems from scaling, thereby improving thermal efficiency and extending equipment lifespan.
- Chemical & Petrochemical Operations: The exceptional chemical tolerance and wide CIP pH range (1-13) allow petrochemical plants to implement aggressive cleaning protocols required when processing heavily contaminated, complex chemical effluents.
- Microelectronics & Data Centre Cooling: Delivers ultra-pure utility water necessary for cooling towers and microelectronic manufacturing, preventing mineral deposition and scaling within closed-loop cooling infrastructure through a reliable 99.3% stabilized salt rejection rate.
Cross-Compatibility & System Integration
The DuPont FilmTec BW30XFRLE-400/34i is designed for seamless cross-compatibility and straightforward system integration into standard large-scale industrial and municipal water treatment plants. Featuring a universally recognized outer diameter of 7.9 inches (201 mm) and a standard connected length of 40.0 inches (1,016 mm), this membrane acts as a direct, drop-in replacement for any legacy 8-inch brackish water reverse osmosis element. It is precisely engineered to be loaded into standard 8-inch inner diameter fibreglass pressure vessels (FRPs) used globally across the water treatment sector.
A critical integration feature of the BW30XFRLE-400/34i model is the inclusion of DuPont’s iLEC (Interlocking End Cap) system. Unlike standard flat-end membranes that require separate interconnectors and multiple sliding O-rings to bridge elements within a vessel, the iLEC design features built-in, physically interlocking faces. When loaded into a pressure vessel (typically in configurations of 4 to 8 elements per housing), these end caps lock together to form a rigid, highly secure seal. This mechanical integration drastically reduces the likelihood of O-ring leaks caused by hydraulic shocks or system start-ups. Plant engineers must account for a maximum pressure drop of 15 psi (1.0 bar) per individual element, or a maximum of 50 psi (3.5 bar) across a fully loaded pressure vessel containing a minimum of four elements. It operates within a continuous pH range of 2 to 11 and can handle a maximum feed flow of 75 gpm (17 m³/h), making it highly adaptable to varying pretreatment configurations.
Frequently Asked Questions
Q: What is the maximum operating pressure of the DuPont FilmTec BW30XFRLE-400/34i?
The maximum operating pressure for this polyamide thin-film composite membrane is 600 psi (41 bar). It is designed to provide high-efficiency performance at much lower standard operating pressures, specifically tested at 150 psi (10.3 bar) while yielding 11,500 gallons per day.
Q: Is the BW30XFRLE-400/34i FDA compliant for food and beverage applications?
Yes, when used unmodified and according to good manufacturing practices, this membrane complies with the U.S. FDA Food Additive Regulation 21 CFR § 177.2550 for processing liquid food and purifying water for food manufacturing. Additionally, its component parts comply with 21 CFR § 170 to 199.
Q: What is the benefit of the 34-LDP feed spacer in this membrane?
The 34-mil Low Differential Pressure (LDP) feed spacer is engineered to enhance hydrodynamic flow and reduce the trapping of biological and colloidal foulants. This results in a lower overall pressure drop across the membrane vessel and allows for easier, more effective cleaning cycles.
Q: How do iLEC interlocking end caps improve RO system performance?
The iLEC (Interlocking End Cap) technology physically connects the membranes within a pressure vessel, eliminating the need for traditional sliding interconnectors. This reduces the number of vulnerable O-rings, thereby significantly lowering the risk of leaks and permeate contamination during operation.
Q: What is the recommended cleaning pH range for this FilmTec element?
The BW30XFRLE-400/34i offers the industry's widest chemical tolerance, supporting short-term (30-minute) Cleaning-In-Place (CIP) procedures across a pH range of 1 to 13. Its continuous operational pH range is 2 to 11.
Q: Where can I buy the DuPont FilmTec BW30XFRLE-400/34i in bulk?
You can source this product globally through Growthbet LTD. We provide Delivered Duty Paid (DDP) bulk pricing and comprehensive supply chain management. Email your required quantities to sales@growthbet.net for a formal quotation within 48 hours.
Source This Product From Growthbet LTD
Growthbet LTD is a UK-registered global industrial procurement company specializing in sourcing and delivering technical components under a full-liability DDP (Delivered Duty Paid) model. When you source through Growthbet, the company assumes complete responsibility for supplier verification, quality control, international freight, customs clearance, and last-mile delivery to your facility — with a single, transparent invoice and no hidden costs.
- Bulk & Project Pricing: Competitive DDP landed-cost quotations for any volume, from single units to full-container orders.
- 48-Hour Quotation Response: Submit your specifications and quantity, and receive a formal sourcing brief within 48 hours.
- Global Delivery: DDP shipping to the GCC, United Kingdom, Europe, United States, Australia, and worldwide.
- Verified Supply Chain: Every supplier is factory-audited and certification-verified before any order is placed.
📧 Request a Quote: Email sales@growthbet.net with the product name, quantity, and delivery destination. 📞 Call: +44 7897470885.