The ELP-4040 membrane elements are designed for the treatment of salt water in low-pressure systems.
The large active surface area and high rejection coefficient allow these membranes to be used under variable pressure and flow conditions without compromising filtrate quality.
Up to 2 500 gallons of fresh water per day
Membrane element supplied dry
Easy installation
Membrane type – spiral element with polyamide thin-film composite
Dimensions, H×W×D: 1016 x 99 x 19 mm
Filter weight 3 kg
CHARACTERISTICS
Active area – 8.1 m²
Working pressure – 10.3 bar
Flow rate – 9.5* m³/day
The rejection rate for stabilised salt is 99.0%.
Feed gasket thickness – 0,7 mm
* Permeate flow and salt (NaCl) rejection under the following standard test conditions: 2 000 mg/l NaCl, 25 °C, 15 % regeneration. The fluxes of the individual elements may vary, but must not be more than 15 % below the specified value.
OPERATING PARAMETERS
Maximum operating water temperature – 45 °C
Maximum working pressure – 41 bar
Maximum cell pressure drop – 1.0 bar
Continuous pH range – 3…11
pH range, short-term cleaning – 1.5…12
Maximum sediment density index (SDI) of the feed water – 5
Free chlorine tolerance < 0,1 mg/l
MAINTENANCE
Before the system start-up procedures, membrane pre-treatment, loading of membrane elements, calibration of instruments and other system checks must be carried out. For more information, please refer to the product manual.
During commissioning, it is recommended to gradually bring the system from a quiescent to an operating state by the following methods:
The inlet water pressure should be gradually increased over 30-60 seconds.
The operating flow rate should be reached gradually over 15-20 seconds.
During the first hour of operation, the resulting filtrate shall be discarded.
IMPORTANT INFORMATION
Always keep the elements wet after system start-up and after membrane emulsions have become wet
To avoid biofouling during long breaks in operation, it is recommended to immerse the membrane elements in preservative solutions.
The maximum pressure drop is 2.1 bar.
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