Compliance & Document Hub
- USA FDA - Food Additive Status: Membranes comply with the U.S. Food, Drug and Cosmetic Act under 21 CFR § 177.2550 for liquid food processing and water purification.
- USA FDA - Food Additive Status: Element parts and materials in contact with potable water comply with 21 CFR § 170 to 199.
- Regulatory Status: Subject to drinking water application restrictions in certain countries; validation is required prior to use.
Executive Product Summary
The DuPont FilmTec™ BW30XHR PRO-440 is an extra high rejection brackish water reverse osmosis (RO) membrane element engineered for advanced industrial demineralization and heavy-duty municipal water purification. Utilizing state-of-the-art polyamide thin-film composite chemistry, this product delivers exceptional permeate quality with a stabilized salt rejection rate of 99.8% (and a minimum rejection threshold of 99.6%). By integrating 440 square feet (41 square meters) of active membrane area with an optimized 28-mil feed spacer, this RO element maximizes the balance between high volumetric production and robust resistance against particulate fouling. Under standard testing parameters, a single element provides a permeate flow rate of 12,650 gallons per day (48 cubic meters per day), making it an elite choice for large-scale treatment facilities striving to reduce capital footprint while boosting throughput.
Beyond standard saline exclusion, the BW30XHR PRO-440 is highly specialized for the stringent rejection of difficult solutes, offering excellent clearance rates for silica, boron, nitrate, total organic carbon (TOC), and ammonium. This technical advantage is absolutely critical for sectors with zero-tolerance permeate requirements, including power generation boiler feed operations, semiconductor manufacturing, and sensitive petrochemical processes. Its reliable structural design, complete with a rugged fiberglass outer wrap and a U-cup brine seal, guarantees superior durability during long-term operation, thereby maintaining membrane integrity even under severe dynamic pressure drops and rigorous chemical cleaning cycles.
Operationally, this membrane element features a flexible yet strictly defined engineering envelope. It is capable of withstanding maximum operating pressures up to 600 psi (41 bar) and maximum feed flow rates of 75 gpm (17 m³/h). The thermal envelope permits continuous operation at temperatures up to 113°F (45°C), although continuous operation above a pH of 10 must be strictly maintained below 95°F (35°C) to prevent irreversible chemical degradation. Maintenance protocols are highly adaptable, supporting continuous operation across a pH range of 2 to 11, and brief 30-minute cleaning cycles extending from pH 1 to 13. System operators must closely monitor pre-treatment variables: the maximum feed silt density index (SDI) must not exceed 5, and the polyamide structure demands rigorous dechlorination, strictly requiring free chlorine exposure to remain < 0.1 ppm to avoid permanent oxidation damage. Ultimately, this element provides a highly cost-efficient Total Cost of Ownership (TCO) and acts as an exceptional OPEX-reducing solution for seawater second-pass systems and advanced demineralization plants.
Applications & Industry Use-Cases
- Power Generation (Boiler Feed Water): The BW30XHR PRO-440 provides exceptional rejection of silica and dissolved solids, preventing mineral scaling on high-pressure turbine blades and lowering overall boiler blowdown frequency.
- Direct Lithium Extraction (DLE): Proven suitable for early-stage lithium concentration, providing a 2x to 5x enrichment capability, which significantly reduces the volumetric processing load on downstream evaporation equipment.
- Chemical & Petrochemical Processing: The membrane delivers stringent permeate quality and TOC reduction required for the synthesis of high-purity chemical intermediates, safeguarding sensitive catalytic reactions.
- Seawater Reverse Osmosis (SWRO) 2nd Pass: Acts as an extremely cost-efficient second-pass polishing solution, taking the initial seawater permeate and upgrading it to ultra-pure standards with 99.8% stabilized salt rejection.
- Food & Beverage Manufacturing: Fully compliant with FDA 21 CFR § 177.2550, this element ensures safe, reliable purification of source water utilized directly in liquid food processing and ingredient mixing.
- Municipal Water Purification: High active area (440 ft²) and 12,650 gpd output allow municipal plants to maximize volumetric drinking water output while maintaining strict compliance with complex nitrate and ammonium limits.
Cross-Compatibility & System Integration
The FilmTec BW30XHR PRO-440 is engineered to standard 8-inch industrial membrane dimensions, making it an exact drop-in replacement for any comparable 8-inch system. The element measures 40.0 inches (1,016 mm) in total length and 7.9 inches (201 mm) in outer diameter. This dimensional standard ensures complete compatibility with commercially available 8-inch internal diameter pressure vessels from major manufacturers, seamlessly integrating without the need for custom internal hardware modifications.
To guarantee immediate and secure installation, each BW30XHR PRO-440 element is shipped with critical connection hardware. The package includes an interconnector coupler (part number 313198) equipped with two pre-installed 3-912 EPR O-rings (part number 151705). This factory-supplied coupling system ensures perfectly sealed permeate tubes when loading multiple elements in series within a single pressure vessel. Furthermore, the unit features a precision-molded U-cup brine seal installed on the feed end, actively preventing feed water bypass and maintaining accurate differential pressure across the membrane surface. For multi-element pressure vessels containing at least four units, system designers must observe a maximum allowable pressure drop of 50 psi (3.5 bar) per vessel to maintain structural safety.
Frequently Asked Questions
Q: What is the primary function of the FilmTec BW30XHR PRO-440?
This membrane element provides extra high rejection of dissolved salts and impurities in brackish water sources, delivering exceptional permeate quality for industrial demineralization and municipal water purification.
Q: What is the maximum operating pressure for this FilmTec membrane?
The BW30XHR PRO-440 is designed to withstand a maximum continuous operating pressure of 600 psi (41 bar).
Q: Is the BW30XHR PRO-440 FDA compliant for food processing?
Yes. When used unmodified and according to good manufacturing practices, this membrane complies with the U.S. Food Additive Regulation 21 CFR § 177.2550 for processing liquid food and purifying water for food manufacturing.
Q: How does this element perform regarding challenging impurities like silica and TOC?
It is specifically engineered to deliver excellent rejection rates for difficult-to-remove solutes, including silica, boron, nitrate, total organic carbon (TOC), and ammonium.
Q: What is the free chlorine tolerance of this reverse osmosis element?
Like all polyamide thin-film composite membranes, it has an extremely low tolerance for oxidative chemicals. Free chlorine exposure must be kept at < 0.1 ppm to prevent permanent membrane damage.
Q: Where can I buy the FilmTec BW30XHR PRO-440 in bulk?
You can source this product globally through Growthbet LTD. For DDP landed-cost quotations, contact the procurement team directly at sales@growthbet.net.
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.
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