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RO BW-4040 Membrane Price List

If you are looking for a high-quality commercial 4040 reverse osmosis membrane but have a budget you can't go over, BW-4040 may be the answer.

Brief Introduction

Replacement for any standard 4040 commercial reverse osmosis membrane

Hard fiberglass shell protects membrane and provides outstanding performance

Manufactured in a state-of-the-art, ISO-9001-2000 certified automatic rolling facility

Substantial quantity discounts available at 4, 8 and 16 membranes

Specifications and Major Properties


Average Permeated Flow GPD (m3/d) 

Stable Rejection Rate (%)

Minimum Rejection Rate (%)




BW30HR-4040 2500(9.5) 99.7 99.4

Testing Conditions: 

Testing Pressure: 225 psi (1.55Mpa)

Temperature of Testing Solution: 25°C

Concentration of Testing Solution (NaCI): 2000ppm

pH Value of Testing Solution: 7.5

Recovery Rate of Single Membrane Element: 15%

Extreme Operation Conditions

Max. Working Pressure: 600psi(4.14Mpa)

Max. Feedwater Flow: 75gpm(17m3/h) (8040)

16gpm (3.6 m3/h) (4040)

Max. Feedwater Temperature: 45°C

Max. Feedwater SDI: 5

Residual chlorine Concentration of Feedwate: < 0.1ppm

pH Range of Feedwater during Continuous Operation: 3~10

pH Range of Feedwater during Chemical Cleaning: 2~12

Max. Pressure Drop of Single Membrane Element: 15psi(0. 1Mpa)

Dimensions of Membrane Element

All dlimensions are shown in: millimeter (inch)

Dimensions of Membrane Element (1)

Dimensions of Membrane Element (2)

If you would like to know more about our RO membranes, please contact us