SKU: 28232539127

8"x40" | 10,500 GPD | 99.5% Rej | 400 ft2 | FilmTec RO Membrane

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Description

8"x40" | 10,500 GPD | 99.5% Rej | 400 ft2 | FilmTec RO MembraneDOW FILMTEC BW30 400 Industrial BWRO Membrane Element DOW FILMTEC BW30 400 elements are the product of choice when high quality permeates are required. It is widely used in new equipment and retrofits where system capital and productivity are factors. DOW FILTMEC BW30 400 Element is ideal for reverse osmosis plant managers and operators dealing with challenging water and seeking consistent, high performance and long element life. With decades of



DOW FILMTEC™ BW30-400 Industrial BWRO Membrane Element


DOW FILMTEC BW30-400 elements are the product of choice when high quality permeates are required. It is widely used in new equipment and retrofits where system capital and productivity are factors. DOW FILTMEC BW30-400 Element is ideal for reverse osmosis plant managers and operators dealing with challenging water and seeking consistent, high performance and long element life. With decades of proven performance, DOW FILMTEC™ BW30-400 delivers high quality permeate water while minimizing unit cost. DOW FILMTEC BW30-400 also offers the most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1-13) tolerance and the support of Dow technical representatives.

DOW FILMTEC Brackish Water Reverse Osmosis 8" Elements can separate salts from water and are produced with an automated fabrication process that ensures precision, consistency, and reliability. They are ideal for use in large-scale industrial and municipal water treatment systems that produce greater than approximately 10 gpm (2300 L/h) of permeate. Our RO membranes build on a tradition of leadership in the thin-film composite membrane industry and meet today's challenges for higher rejection using less energy and resisting foulants in challenging waters.

Dow inclucdes one coupler part number PV-IN810 (313198) with each element. Each coupler includes two 3-912 EPR o-rings.

DOW FILMTEC BW30-400 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.

 

Specifications for BW30-400

FilmTec Product: BW30-400
FilmTec Part Number: 90650
Size (Approximate): 8" Dia. x 40"L
Flow Rate: 10,500 gpd (36 m³/d)
Applied Pressure: 225 psig (15.3 bar)
Stabilized Salt Rejection: 99.5%
Minimum Salt Rejection: 99.0%
Active Surface Area: 400 Sq. Ft.
Single Element Recovery: 15%
End Style: Standard Flush Cut
Exterior: Hard Shell Fiberglass
Feed Spacer: 28 mil
Membrane Type:
 Polyamide Thin-Film
Composite

Permeate flow and salt rejection based: 2,000 ppm NaCl feed stream, 77°F, 15% recovery, 225 psig.

Operating Limits for BW30-400

Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 600 psig (41 bar)
Maximum Pressure Drop: 15 psig (1 bar)
Maximum Feed Flow Rate: 85 gpm (19m³/h)
pH Range, Continuous Operation*: 2-11
pH Range, Short-Term Cleaning**: 1-13
Maximum Feed Silt Density Index: SDI 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.

Related Products for use with BW30-400

PV-IN810 Interconnectors for DOW FilmTec 8" Membrane Elements with 1.125" ID Permeate Port.
AS-135-500 Flocon 135 Antiscalant Scale Inihibitor for Brackish or Seawater Systems Operating at High Recovery
AM-11-25 RO Membrane Cleaning Chemicals - Acid Cleaner to Remove Scale
AM-22-25 RO Membrane Cleaning Chemicals - Alkaline Cleaner to Remove Organics



Benefits of DOW FilmTec Commercial RO Membranes

  • Decades of proven performance
  • Delivers high quality permeate water while minimizing unit cost
  • Offers the most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1-13) tolerance and the support of Dow technical representatives
  • Thick feed spacer minimizes the impact of fouling
  • FilmTec performance and quality

Common Applications for FilmTec BW30-400 Commercial RO Membranes:

  • Industrial Water Demineralization
  • Production of Municipal Water
  • Water Reuse

Physical Dimensions of DOW FilmTec BW30-400

INCHES (MM)
A

40.0 (1,016)
B

1.125 (29)
C

7.9 (201)

BW30-400 fits nominal 8" ID pressure vessels.

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SKU: 28232539127

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While this book raises some thought-provoking points, it ultimately reads like a product of self-righteous elites disconnected from reality and from the American public. 1. Ignores public opinion. The author never acknowledges that polls consistently show Americans oppose racial preferences in college admissions. Proposition 16—which would have allowed such preferences—was defeated by a wide margin in 2020 in California, one of the nation’s most liberal states. A Brookings poll found that virtually all racial groups, including Black respondents, supported the Supreme Court’s Students for Fair Admissions (SFFA) decision. 2. Starts with a strange premise. The first chapter claims conservatives will “regret” the SFFA ruling because universities will continue racial preferences covertly. But that sidesteps the real question: why shouldn’t colleges comply with the ruling’s letter and spirit? 3. Offers dubious legal advice. In Chapter Three, the author—himself a law professor—floats risky ideas for “working around” the Supreme Court’s decision. Many of these suggestions rest on shaky legal ground, as anyone familiar with the Second Circuit’s CACAGNY v. Adams, 116 F.4th 161 (2d Cir. 2024), would recognize. 4. Ignores proportionality and real-world outcomes. The book argues for “diversity” preferences without asking how much preference is justified. In reality, Asian American applicants face steep penalties. e.g. Stanley Zhong was rejected by five University of California campuses’ Computer Science programs as an in-state applicant—shortly before Google hired him for a full-time, Ph.D.-level software engineering position. Meanwhile, UC San Diego’s own freshman math-placement data show a surge of students—mostly “underrepresented minorities” favored by UC—placed into remedial courses, some testing at a 4th-grade level. It is hard to see how admitting these students is helping them other than allowing some elites to make themselves feel good or get a promotion. If this book represents what passes for legal scholarship at Yale, the state of American legal education should worry us all.
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