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8040 Ro Water Membrane Price

SW-8040 Seawater Reverse Osmosis Membrane, an 8.0" x 40" RO membrane element that can provide RO quality water of up to 9,000 gallons per day at a 15% recovery rate.

Brief Introduction

The SW membrane element offers the highest quality water output from seawater and highest productivity while maintaining excellent salt rejection. This reliable performance is the result of improved membrane combined with automated, precision element fabrication.

Specifications and Major Properties

Model Average Permeated Flow GPD (m3/d)  Stable Rejection Rate (%) Minimum Rejection Rate (%)


7500(28.4)  99.85 99.6



99.8 99.6


99.7 99.5

Testing Conditions: 

Testing Pressure: 800 psi (5.5Mpa)

Temperature of Testing Solution: 25°C

Concentration of Testing Solution (NaCI): 32000ppm

pH Value of Testing Solution: 7.5

Recovery Rate of Single Membrane Element: 15%

Extreme Operation Conditions

Max. Working Pressure: 1000psi(6.9Mpa)

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)

Product Advantages

SW RO elements provide longer life due to high cleanability.

High Salt rejection for high quality permeate.

High flux reduces energy used and pressure required.

Good rejection provides good water quality.

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