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IWE Reverse Osmosis Membranes

You are here : Home | Consumables | Reverse Osmosis Membranes | IWE Reverse Osmosis Membranes | 4″ Diameter | 4″ X 40″ Membranes


IWE Reverse Osmosis Membranes – 4″ x 40″

Industrial Water Equipments new BW4040 Membranes are specifically designed for the production of pure water for a huge range of industrial IWE Reverse Osmosis Membranesapplications.

The main benefits of using Industrial Water Equipments Range of RO membranes are as follows.

  • Best price guarantee
  • Buy from Trusted professional Water Treatment company Industrial Water Equipment ltd who’s tech team will advise you if required.
  • Directly replaces any 4” x 40” RO membranes.
  • Produces less waste water.
  • Always available from UK Stock.
  • Low pressure required.
  • More efficient than other more expensive membranes.
  • Higher flow Capacities.
  • Individually quality tested.
  • Directly replaces Toray, Axaeon, Hydronautics and Dow membranes (plus others).
CodeDescriptionSizePrice
IWE-BW4040IWE Brackish Water (BW) Series Membrane4" x 40"£135.00Buy Now

Industrial Water Equipment RO membrane elements-Brackish Water (BW) Series including high desalination and high flow are suitable for desalination of surface water, underground water and low-pollution water source with TDS􀒕5000ppm and mainly applied in pure water in food and pharmaceuticals industry, desalted water in power station, ion exchange softening system and purification system of river and underground water.


Specification and Performance

ModelActive Membrane Area ft2(m2)Average Permeated Flow GPD (m3/d)Stable Rejection Rate ( %)Minimum Rejection Rate (%)
IWE-404090(8.4)2400(9.1)99.599.3
Testing Conditions
Testing Pressure225psi (1.55Mpa)
Temperature of Testing Solution25℃
Concentration of Testing Solution (NaCl)2000ppm
pH Value of Testing Solution7.5
Recovery Rate of Single Membrane Element15
Operation Limits and Conditions
Max. Working Pressure600psi􀒁4.14Mpa􀒂
Max. Feed water Flow75gpm(17m3/h) (8040), 16gpm(3.6m3/h) (4040,4021)
Max. Feed water Temperature45℃
Max. Feed water SDI155
Residual Chlorine Concentration of Feedwater􀒕0.1ppm
pH Range of Feedwater during Continuous Operation3􀓗10
PH Range of Feedwater during Chemical Cleaning2􀓗12
The Max. Pressure Drop of a Single Membrane Element15psi (0.1Mpa)

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