Product: Osmotic Membrane Dow Filmtex* - 75GPD@60psi
Filmtec membranes are made by Dow Chemicals of the highest quality materials (Polyamide Thin Film Composite) and the highest quality standards of production that provide filtration and a longer duration. The membrane is kept dry for longer life and greater ease of transport.
FILMTEC membranes produce 20% more 'of water at only 3.4 bar pressure than the other membranes of equal magnitude tested at a pressure of 4 bar.
These membranes can be used in all installations of osmosis with conventional vessel 1812.
Membrane certified and tested to ANSI / NSF Standard 58.
Technical information model FILMTEC TW30 - 1812-75 gpd:
- Width 44.5 mm
- Length 298.0 mm
- Lph capacity 12 + / - 20% *
- Rejected 98%
* The rejection and the permeate production (flow) are calculated taking into account the following operating conditions: 250 ppm TDS incoming water, temperature 25 ° C, pressure 3.4 bar food.
Maximum pressure 21 bar
Recommended pressure 3.5 to 4 bar
Maximum operating temperature 45 ° C
Minimum rate of concentration 4 - 5 times the flow of the permeate (ratios less increase the rate of precipitation)
Concentration masses of 500 ppm total dissolved salts (in case the salinity was higher using softened water)
Maximum amount tolerable chlorine 0.1 ppm for a short time (we recommend the total removal)
Ph working 1:00 to 13:00 (high pH levels affect the duration)
Warnings and precautions:
Do not use the water produced after introduction of the new membrane. Throwing the first 30 liters of water to remove traces of the organism in which the membrane is preserved.
Do not use the water produced from the membrane for drinking or food without having been mineralized in order to bring dissolved salts to the right level.
The membranes have a limited resistance to contact with chlorine (hypochlorite). Continuous exposure caused irreversible damage.
It is recommended to change the prefilters osmosis plant at least every 6 months to ensure the efficiency and lifetime of the membrane for several years. Furthermore it is recommended that the backwash monthly to prevent mineral fouling and have the utmost efficiency.
The level of reverse osmosis filtration
This image from a graphic representation of the level of filtration systems, reverse osmosis, referring to the diameter of a human hair.
The reverse osmosis systems repel the greatest amount of contaminants than other systems of domestic sewage, producing the purest spring water.