Bumblebee Linens

Description
The DOW FILMTEC™ Industrial Grade, BW30-400-IG high rejection brackish water reverse osmosis (RO) element is designed for use in industrial water treatment applications. It maintains the same flow and rejection performance of the BW30-400 elements, but does not carry the ANSI standard 61 or KIWA certifications, offering a more cost effective option for industrial applications.

• BW30-400-IG elements may be cleaned over a wide pH range (pH 1-13).
• The BW30-400-IG is a drop-in replacement for the BW30-400 in systems that do not require drinking water certifications.

Product Type
Polyamide Thin-Film Composite

Dimension
40 in x 7.9 in

Product Specifications

Applied
Pressure
Permeate
Flow Rate
Typical
Stabilized
Salt
Rejection (%)
(psig) (bar) (GPD) (m³/h)
10,500 40.0 99.5
  1. Permeate flow and salt rejection based on the following standard conditions: 2,000 ppm NaCl, 225 psi (15.5 bar), 77°F (25°C), pH 8 and 15% recovery.
  2. Flow rates for individual elements may vary but will be no more than 15% below the value shown.
  3. Sales specifications may vary as design revisions take place.
  4. Active area guaranteed ± 5%.

Operating and Cleaning Limits

Maximum
Operating Temperature
Maximum
Operating Pressure
Maximum
Feed Flow
Maximum
Pressure Drop
pH Range,
Continuous Operation
pH Range,
Short-Term Cleaning (30 min.)
Maximum Feed
Silt Density
Index (SDI)
Free
Chlorine
Tolerance
113°F (45°C) 600 psig (41 bar) 85 gpm (19.0 m³/h) 15 psig (1.0 bar) 2 – 11 1 – 13 SDI 5 < 0.1 ppm

• Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
• Refer to Cleaning Guidelines in specification sheet 609-23010.
• 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 FILMTEC recommends removing residual free chlorine by pretreatment prior to membrane exposure. Please refer to technical bulletin 609-22010 for more information.