Total
LP21-4021
Price on request
RO membrane LP21-4021
The LP series of aromatic polyamide compound membrane elements provides low-pressure operation, high permeate flow, and excellent desalination of brackish water. LP series can be effectively used for desalination of surface water (NaCl ≤10000ppm), underground water, tap water, and municipal water.
Due to their excellent performance in removing soluble salts, TOC, SiO2, e.t.c. these membranes are suitable for the production of high-purity water for food and beverages industries, electronic industry and the electric power industry.
Due to their excellent performance in removing soluble salts, TOC, SiO2, e.t.c. these membranes are suitable for the production of high-purity water for food and beverages industries, electronic industry and the electric power industry.
Technical specifications of LP21-4021 RO membrane
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Characteristics
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Values
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|---|---|
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Active membrane area, sq.ft (sq.m)
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36 (3,3)
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|
Average permeate, GPD (cu.m/d)
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950 (3,6)
|
|
Stable rejection rate, %
|
99,5
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Min. rejection rate, %
|
99,3
|
|
Testing Conditions
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Values
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|---|---|
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Testing pressure
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225 psi (1,55 MPa)
|
|
Testing solution temperature
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25 °C
|
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Testing solution concentration (NaCl)
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2 000 ppm
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Testing solution pH value
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7,5
|
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Recovery rate of a single membrane element
|
0.08
|
|
Operation Limits & Conditions
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Values
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|---|---|
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Max. working pressure
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600 psi (4,14 MPa)
|
|
Max. feed water supply volume
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16 gpm (3,6 m3/h)
|
|
Max. feed water temperature
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45°C
|
|
Max. feed water SDI15
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5
|
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Feed water pH Range during continuous operation
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2 ≈ 11
|
|
Feed water pH Range during chemical cleaning
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1 ≈ 13
|
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Feed water residual chlorine concentration
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< 0,1 ppm
|
|
Max. pressure drop on a single membrane element
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15 psi (0,1 MPa)
|
|
Max. pressure drop on a single pressure vessel with six RO membrane elements
|
50 psi (0,34 MPa)
|
