Reverse Osmosis Membranes - AK HR Series

High Rejection, Low Energy Consumption Reverse Osmosis Elements for Brackish Water

The thin-film composite reverse osmosis membranes of the A series feature high permeate flow and high rejection of sodium chloride. The AK HR elements for brackish water are selected when high rejection and low operating pressures are required. These elements allow for significant energy savings with operating pressures as low as 100 psig (689 kPa).
These elements are recommended for mildly brackish water with a salt concentration (TDS) of up to 1000 mg/l. The AK HR elements achieve permeate quality close to that of standard elements while operating at much lower pressures.

More Detailed Description

The AK HR elements are certified ANSI/NSF 61.

Table 1: Element Specification

Membrane  A Series, Thin Film Composite Membrane (TFM*)
Model Average Permeate Flow Rate gpd (m3/day) 1.2 Average NaCl Rejection 1.2 Minimum NaCl Rejection 1.2 Typical Bore Rejection 2
AK-90 2300(8,4) 99,5% 99,3% 99%
AK-365 10 000(37,9) 99,5%   99%
AK-400 11000(41,6) 99,5%   99%
AK-400,34 11000(41,6) 99,5% 99,3% 99%
AK-440 12000(45,4) 99,5% 99,3% 99%

 

Table 2: Characteristics

Model Active Surface ft2(m2) Outer Envelope Part Number
AK-90 90(8,4) Fibre de verre 3056678
AK-365 365(33,9) Fibre de verre 3056679
AK-400 400(37,2) Fibre de verre 3056680
AK-400,34 400(37,2) Fibre de verre 3156843
AK-440 440(40,9) Fibre de verre 3056681