Filmtec BW30-400

Filmtec BW30-400 membrane High Rejection, High Surface Area Brackish Water RO Element. BW30-400 is the product of choice when the highest quality permeate is required. It was the first 400 square foot membrane element on the market and continues to be widely used in new equipment and retrofits where system capital and productivity are factors.
Product name	BW30-400
Part number	98650
Nominal Active Surface Area	400 (37) ft2 (m2)
Permeate Flow Rate	10,500 (40) gpd (m3/d)
Stabilized Salt Rejection	99.5 %
1. Permeate flow and salt rejection based on the following test conditions: 500 ppm NaCl feedstream, pressure specified above, 77°F (25°C) and the following recovery rates: XLE-2521, XLE-4021 – 8%; XLE-2540, XLE-4040 – 15%. 2. Permeate flows for individual elements may vary +/-20%. 3. For the purpose of improvement, specifications may be updated periodically.
Membrane Type	Polyamide Thin-Film Composite (Filmtech)
Maximum Operating Temperature	113°F (45°C)
Maximum Feed Flow Rate	14 (3.2) gpm (m3/hr)
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	SDI 5
Free Chlorine Tolerance	< 0.1 ppm

Important Information:

Proper start-up of reverse osmosis water treatment systems is essential to prepare the membranes for operating service and to prevent membrane damage due to overfeeding or hydraulic shock. Following the proper start-up sequence also helps ensure that system operating parameters conform to design specifications so that system water quality and productivity goals can be achieved. Before initiating system start-up procedures, membrane pretreatment, loading of the membrane elements, instrument calibration and other system checks should be completed. Please refer to the application information literature entitled “Start-Up Sequence” (Form No. 609-02077) for more information.

Operation Guidelines:

Avoid any abrupt pressure or cross-flow variations on the spiral elements during start-up, shutdown, cleaning or other sequences to prevent possible membrane damage. During start-up, a gradual change from a standstill to operating state is recommended as follows: Feed pressure should be increased gradually over a 30-60 second time frame. Cross-flow velocity at set operating point should be achieved gradually over 15-20 seconds. Permeate obtained from first hour of operation should be discarded.

General Information:

Keep elements moist at all times after initial wetting. If operating limits and guidelines given in this bulletin are not strictly followed, the limited warranty will be null and void. To prevent biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution. The customer is fully responsible for the effects of incompatible chemicals and lubricants on elements. Maximum pressure drop across an entire pressure vessel (housing) is 50 psi (3.4 bar). Avoid static permeate-side backpressure at all times.

Notice: The use of this product in and of itself does not necessarily guarantee the removal of cysts and pathogens from water. Effective cyst and pathogen reduction is dependent on the complete system design and on the operation and maintenance of the system. Notice: No freedom from any patent owned by Seller or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other governmental enactments. Seller assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.

BW30400: FilmTec’s superior automated manufacturing technology results in the most consistent performance element-to-element and year-after-year. • BW30-400 elements deliver high flow and high rejection without being chlorinated during the manufacturing process. This is one reason why FILMTEC elements are more durable and may be cleaned over a wider pH range (pH 1-13) than other RO elements. • With more than a decade of proven performance, BW30-400 is the product you can rely on for years of trouble-free operation.

Lenntech can also help you with similar brackish and seawater filters or filtration systems for optimum water purification and liquid filtration. Also we can provide other Filmtec type replacement membranes
Please feel free to contact us for any information on reverse osmosis water filters.