Skip to product information
1 of 1

LG

Replaces BW30-4040 2,500 GPD at 225 PSI 4 x 40 inch 99.6% Rejection Brackish Water LG Membranes

Regular price $173.74 USD
Regular price Sale price $173.74 USD
Sale Sold out
Quantity
IN STOCK & AVAILABLE FOR FAST IMMEDIATE SHIPMENT from The United States!
  • Found a Better Price? Contact Us, We'll See if We Can Get You a Better Deal!
  • Original Authentic Genuine Part!
  • For Quantity Discounts Contact Us for a Quote!
  • Customers Outside The Contiguous United States, Please Contact Us for a Quote!
  • Call: 1 (760) 598-0189
  • Email: hctivista@gmail.com
We are an Authorized Distributor for LG Water Solutions

Drop-In 4040 Replacement for the FilmTec BW30-4040

 

This 4-inch by 40-inch brackish water RO element from LG Water Solutions (LG Chem) is a direct-fit replacement for the FilmTec BW30-4040. It matches the following BW30-4040 dimensions and ratings: 3.9-inch by 40-inch 4040 format, a 0.75-inch permeate tube, a 225 PSI test pressure, a 600 PSI maximum applied pressure, and a 16 GPM maximum feed flow.

The element has 85 square feet of active membrane area and is rated at 2,500 GPD (9.5 m³/d) with a stabilized salt rejection of 99.6% and a 99.3% minimum. It is built on LG's NanoH2O™ thin film nanocomposite (TFN) technology, which puts nanomaterials into the polyamide layer to raise permeability while keeping salt rejection high. A standard 28-mil feed spacer and good fouling resistance support steady output over time.

The element suits light industrial process water and commercial RO systems, and it is certified to NSF/ANSI/CAN Standard 61 for drinking water systems. It operates at temperatures up to 113°F and a continuous pH range of 2 to 11. If you are replacing worn BW30-4040 elements in an existing 4040 vessel, it installs the same way.

 

Specification Table

SPECIFICATION

DETAILS

Replacement For

FilmTec BW30-4040 (4" x 40" Brackish Water RO Element)

Manufacturer

LG Water Solutions (LG Chem)

Element Type

Brackish Water RO Membrane

Membrane Technology

Thin Film Nanocomposite (TFN), Spiral Wound

Element Dimensions

3.9" (100 mm) Diameter x 40" (1,016 mm) Length

Permeate Tube

0.75" (19 mm)

Active Membrane Area

85 ft² (7.9 m²)

Permeate Flow Rate

2,500 GPD (9.5 m³/d)

Stabilized Salt Rejection

99.6%

Minimum Salt Rejection

99.3%

Feed Spacer Thickness

28 mil

Test Conditions

2,000 ppm NaCl, 225 psi (15.5 bar), 25°C (77°F), pH 7, 15% Recovery

Permeate Flow Variation

± 20%

Max Applied Pressure

600 psi (41 bar)

Max Feed Flow

16 GPM (3.6 m³/h)

Max Pressure Drop (Per Element)

15 psi (1.0 bar)

Max Operating Temperature

113°F (45°C)

Max Chlorine Concentration

< 0.1 ppm

pH Range (Continuous)

2 – 11

pH Range (Cleaning)

2 – 12

Max Feed Water Turbidity

1.0 NTU

Max Feed Water SDI (15 min)

5.0

Certification

NSF/ANSI/CAN Standard 61

Ideal Applications

Light Industrial Process Water, Commercial RO Systems

View full details