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.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 28232539127

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psychichealer
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★★★★★ 5
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I make jewelry. I get attached to certain pendants. But I can't wear them all! So THIS! I can have it on my desk and have all my favorite Shaman Styled Stones with me :-D
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Yaniv Goldstein
Grantham, US
★★★★★ 5
Great starter set for finding the right hoop size
Color: Gold, Size: 40-50-60mm
Bought these for my girlfriend and we both ended up really liking them. I actually liked that this set came with multiple sizes because it let her try different looks before deciding what size she likes most. It was a nice way to test things out before spending more money on real gold earrings. They look good, feel lightweight, and have been a fun way to figure out her preference.
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Daisy
Carnegie, US
★★★★★ 5
Great value and super cute!
Color: Gold, Size: 30-40-50mm, Color: Gold, Size: 30-40-50mm
These earrings are a yellow gold which I like, and they’ve held up really well the past few days in the shower and with daily wear. These feel high quality and as long as you arent rough with the clasps, these should last you a long time. These are affordable for the quality. I don’t think these will tarnish, and they haven’t lost any shine. The ones in the picture are the smallest size, but I love the others too. They are comfortable to wear and very light weight, whereas others I’ve tried have been heavy or not sturdy enough for daily wear. I would definitely recommend buying these!
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Reviewed in the United States on September 11, 2023
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janet sue staten
Houston, US
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Very stylish
Color: Black, Size: 30-40-50mm
Love them
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beu2full
West Palm Beach, US
★★★★★ 4
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Color: Silver, Size: 20-30-40mm
These earrings are thicker than what I wanted but they are so lovely and packaged so nicely that I am not going to return them. I will gift them to someone instead.
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Reviewed in the United States on February 22, 2026

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