CTA (Cellulose Triacetate) RO Membrane*
Fastek™ Cellulose Triacetate Membrane is a proprietary formulation that
combines the high flow and high rejection properties of thin-film composite
membranes with the chlorine tolerance and price advantage of cellulosic
membranes and more chemical stability than competitive brand cellulosic
Benefits of CTA Membrane
- High Rejection Unique CTA membranes formulation typically yields
tap water total dissolved solids (TDS) rejections of 94-97%.
- Superior Product Water Flow Microthin CTA membrane structure
produces enhanced product water flow and minimizes loss of performance with
- Chlorine Tolerance Many water supplies are chlorinated. Systems
using chlorine-sensitive membranes must incorporate a chlorine removal
medium, such as activated carbon, prior to contact with the membrane, to
avoid damaging the membrane or impairing its performance. With chlorine
tolerant cellulosic membranes, activated carbon postfilters can be employed
to permit disinfection within the membrane and to allow carbon to treat only
the product water (about 1/5 to 1/10 the quantity of the feedwater).
- Chemical Stability A proprietary formulation allows Fastek CTA
membranes to operate on water with a pH up to 9, higher than any cellulosic
membrane in the industry.
Fastek sepralators are used primarily in tap water reverse osmosis systems.
Osmonics® supplies many of the top systems
manufacturers with reverse osmosis elements, and Osmonics spiral-wound elements
are also available as replacements for most popular configurations.
Laboratory and commercial elements in various flow rates and configurations are
Proprietary Pull-Ring and Brine Seal for easy
Anti-Telescoping Device with O-ring(s) is
- Polyethylene Brine Steel Provides superior
feed-to-brine sealing-prohibits seal from flipping inside housing.
- Anti-Telescoping Device (ATD) Prevents the natural
tendency of spiral-wound elements to telescope.
- Self-Centering ATD Lead end acts as a centering
device to assist in positive engagement of product adapter in
- Proprietary Patented Pull-Ring Makes element
removal a snap - eliminates the need for special tools ( on single product
|Cross section of a Fastek Reverse Osmosis Element
Product water flows spirally in product water carrier,last layer
contacts holes in product water tube for exit to collection system