FILMTEC™ Membranes
Nanofiltration Membrane Elements (NF Membranes)

Model No.	Permeate Flow Rate* (GPD/m3d)	Size (Dia."xL")	Applied Pressure (psi)	Stabilized Salt Rejection (%)	Specification Sheets
NF270-2540	850 / 3.2	2.5" x 40"	70	>97.0
NF270-4040	2,500 / 9.5	4" x 40"	70	>97.0
NF90-2540	680 / 2.6	2.5" x 40"	70	>97.0
NF90-4040	2,000 / 7.6	4" x 40"	70	>97.0
NF90-400	NaCI: 7,500 / 28.4 MgSO4: 9,500 / 36.0	8" x 40"	70	NaCl: 85-95 MgSO4: >97
NF270-400	CaCl2: 14,700 / 55.6 MgSO4: 12,500 / 47.3	8" x 40"	70	CaCl2: 40-60 MgSO4: < 3
NF-2540	920 / 3.5	2.5" x 40"	70	>97.0
NF-4040	3,050 / 11.5	4" x 40"	70	>99.0
NF-400	13,700 / 51.9	8" x 40"	70	>99.0

NF9 elements have >99% rejection of 2,000 ppm MgSO4 feed.  Permeate flows on the MgSO4 feed are 30% higher than on a NaCl feed as listed above.
*Permeate flow and solute rejection valves are based on 2,000