CPA6-LD

The CPA6-LD is the fifth generation CPA brine RO membrane and has the best rejection of all its predecessors at 99.8%. This 400 sq. ft membrane operates at a higher feed pressure than the CPA5-LD, but has the highest rejection in the CPA family.


CPA6-LD membranes are engineered with Low Differential Pressure LDTM Technology designed to minimize colloid fouling. They have a membrane area of 37.0 m2 (400 ft2). Using CPA6-LD results in cost savings while still achieving high rejection from the membranes.


The CPA6-MAX has the same high rejection membrane as the CPA6-LD, but with a 10% increase in membrane area at 440 sq.ft.

CPA6 MAX is the preferred choice for feed waters with low turbidity and silt density index, such as saline well waters.

CPA6-LD and CPA6-MAX membranes are only available in 8.0 inch diameter.


Certain Performance
Permeate flow: 7,300 gpd (27.6 m3/d)
Salt rejection: 99.80% (minimum 99.6%)


Test conditions: 1500 ppm NaCl solution
                                   225 psig (1.55 MPa) Applied Pressure
                                   77F (25 C ) Operating Temperature
                                   15% Permeate Recovery
                                   6.5 - 7.0 pH Range


Maximum Applied Pressure:

psig ( MPa)

600 (4.14)

Maximum Chlorine Concentration:

ppm

< 0.1

Maximum Operating Temperature:

F (C)

113 (45)

pH Range,Continuous (Cleaning):

-

2-11 (1-13)

Maximum Feedwater Turbidity:

NTU

1.0

Maximum Feedwater SDI (15 mins):

-

5.0

Maximum Feed Flow:

gpm (m3 /h)

85(19.3 )

Minimum Brine Flow:

gpm ( m3 /h)

12(2.7)

Maximum Pressure Drop for Each Element:

psi ( MPa)

15 (0.10)