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High TDS Water Filmtec Industrial 4040 8040 RO Membrane


Brief Introduction

The High TDS Water Filmtec Industrial 4040 8040 RO Membrane blocks all dissolved salts and organic matter with a molecular weight greater than 100, and its desalination rate is greater than 95%, removing organic matter, micro-organisms, viruses and most ions from the water, and is used in household water purification to ensure safe drinking water.

Specifications and Major Properties


Average Permeated Flow GPD (m3/d)

Stable Rejection Rate (%)

Minimum Rejection Rate (%)

IWL 21-8040 10000(37.8) 99.5 99.2
IML 22-8040 1 1000(41.5) 99.5 99.2
IWL 21-4040 2500(9.4) 99.5 99.2

Testing Conditions:

Testing Pressure: 225 psi (1.55Mpa)

Temperature of Testing Solution: 25°C

Concentration of Testing Solution (NaCl): 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(17 m3/h) (8040)

16gpm (3.6 m3/h) (4040)

Max. Feedwater T emperature: 45°C

Max. Feedwater SDI: 5

Residual chlorine Concentration of Feedwater: < 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 dimensions are shown in: millimeter (inch)

Dimensions of Membrane Element (1)

Dimensions of Membrane Element (2)

A wide range of industrial applications

Reverse osmosis membranes play an important role in the pharmaceutical and medical industries, the electronics industry, the chemical industry, textiles, energy, metallurgy and other industries, desalination of seawater and brackish water, boiler feed water, industrial pure water and electronic pure water preparation, drinking pure water production, waste water treatment and special separation processes, and are precision liquid separation products.