Pargreen Process Technologies - CK Series Water Softening NF Elements (Cellulose Acetate)

The C-Series family, a triacetate/diacetate blend, has a higher flux and better mechanical stability than standard cellulose acetate. C-Series elements offer a lower per element cost and increased chlorine resistance compared to thin-film elements.

CK Nanofiltration Elements are used for water softening, color removal, and reduction of THM potential when chlorine is required.

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Unit of Measure

Items	CK2540FM 30D CK Series Water Softening NF Elements (Cellulose Acetate)	CK4040FM CK Series Water Softening NF Elements (Cellulose Acetate)	CK8040F 365 CK Series Water Softening NF Elements (Cellulose Acetate)	CK8040N CK Series Water Softening NF Elements (Cellulose Acetate)
Membrane	N/A C-series, Cellulose Acetate
Flow Average	N/A 600 gpd2.3 m³/day	N/A 2000 gpd7.6 m³/day	N/A 9000 gpd34.1 m³/day	N/A 9000 gpd34.1 m³/day
Salt Rejection Average (MgSO₄)	N/A 97.0 %
Salt Rejection Minimum (MgSO₄)	N/A 94.0 %
Note	N/A Average salt rejection after 24 hours operation. Individual flow rate may vary +25%/-15%. Testing conditions: 2,000 ppm MgSO₄ solution at 225 psig (1,551 kPa) operating pressure, 77ºF, pH 6.5 and 15% recovery.
Active Area	N/A 27 ft²2.5 m²	N/A 90 ft²8.4 m²	N/A 365 ft²33.9 m²	N/A 365 ft²33.9 m²
Outer Wrap	N/A Fiberglass	N/A Fiberglass	N/A Fiberglass	N/A Net™
Part Number	N/A 1231009	N/A 1233930	N/A 1233927	N/A 1231792
Dimension A (Length)	N/A 40.0 in101.6 cm
Dimension B¹	N/A 0.75 inOD: 1.90 cm	N/A 0.75 inOD: 1.90 cm	N/A 1.125 in2.86 cm	N/A 1.125 in2.86 cm
Dimension C (Outside Diameter)	N/A 2.4 in6.1 cm	N/A 3.9 in9.9 cm	N/A 7.9 in20.1 cm	N/A 7.9 in20.1 cm
Boxed Weight	N/A 5 lb2.3 kg	N/A 8 lb3.5 kg	N/A 32 lb14.5 kg	N/A 32 lb14.5 kg
Typical Operating Pressure	N/A 60 - 200 psig414 - 1379 kPa
Typical Operating Flux	N/A 10 - 18 GFD17 - 30 LMH
Maximum Pressure	N/A 450 psig3103 kPa
Maximum Operating Temperature	N/A 86 ºF30 ºC
Maximum Cleaning Temperature	N/A 86 ºF30 ºC
Operating Range Recommended pH	N/A 5.0 - 6.5
Cleaning Range Recommended pH	N/A 3.0 - 8.0
Recommended Pressure Drop Over an Element	N/A 12 psig83 kPa
Recommended Pressure Drop Per Housing	N/A 50 psig345 kPa
Chlorine Tolerance	N/A 1 ppm Maximum Continuous 30 ppm for 30 min. During Sanitization
Feedwater	N/A NTU < 1 SDI < 5
Note	N/A These elements ship dry. Trademark of General Electric Company; may be registered in one or more countries.
¹ Internal diameter unless specified OD (outside diameter).