Bumblebee Linens

Description
The FILMTEC™ NF90-400 nanofiltration element is a high area, high productivity element designed to remove a high percentage of salts, nitrate, iron and organic compounds such as
pesticides, herbicides and THM precursors.

The high active area membrane combined with low net driving pressure of the membrane allows the removal of these compounds at low operating pressure.

Product Type
Polyamide Thin-Film Composite

Dimension
40 in x 7.9 in

Product Specifications

Applied
Pressure
Permeate
Flow Rate
Typical
Stabilized
Salt
Rejection (%)
(psig) (bar) (GPD) (m³/h)
9,500 36 > 97.0
  1. Permeate flow and salt passage based on the following test conditions:
    2,000 mg/l NaCl, 70 psi (0.48 MPa), 77°F (25°C) and 15% recovery.
    2,000 mg/l MgSO₄, 70 psi (0.48 MPa), 77°F (25°C) and 15% recovery
  2. Flow rates for individual elements may vary ±15%.
  3. The above specifications are benchmark values. Please be sure to operate according to our system design guidelines.

Operating and Cleaning Limits

Maximum
Operating Temperature
Maximum
Operating Pressure
Maximum
Feed Flow Rate
pH Range,
Continuous Operation
pH Range, Short-Term Cleaning (30 min.) Maximum Feed
Silt Density
Index (SDI)
Free
Chlorine
Tolerance
113°F (45°C) 600 psig (41 bar) 70 gpm (15.9 m³/hr) 3 – 10 1 – 13 SDI 5 < 0.1 ppm

• Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
• Refer to Cleaning Guidelines in specification sheet 609-23010.
• Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, FilmTec recommends removing residual free chlorine by pretreatment prior to membrane exposure. Please refer to technical bulletin 609-22010 for more information.