ULP22-8040

RO membrane of ultra-low pressure aromatic polyamide compound RO membranes can work under ultra-low pressure to reach the same permeate flow and rejection as of regular low-pressure membrane elements.
Description ...


Price on request
RO membrane ULP22-8040
ULP series of ultra-low pressure aromatic polyamide compound RO membranes can work under ultra-low pressure to reach the same permeate flow and rejection as of regular low-pressure membrane elements. ULP series can be effectively used for desalination of surface water (NaCl ≤2000ppm), underground water, tap water, and municipal water.

ULP membrane elements are mainly used for boiler water replenishment, foodstuff processing, and pharmaceutical production.
Effective operation at a lower pressure can decrease the investment costs for related equipment such as pumps, pipelines, and containers, etc. and the operating cost for the RO system, thus increasing the economic efficiency.
Technical specifications of ULP22-8040 RO membrane
Characteristics
Values
Active membrane area, sq.ft (sq.m)
400 (37,2)
Average permeate, GPD (cu.m/d)
12 100 (45,7)
Stable rejection rate, %
99,0
Min. rejection rate, %
98,5
 
Testing Conditions
Values
Testing pressure
150 psi (1,03 MPa)
Testing solution temperature
25 °C
Testing solution concentration (NaCl)
1 500 ppm
Testing solution pH value
7,5
Recovery rate of a single membrane element
0.15
 
Operation Limits & Conditions
Values
Max. working pressure
600 psi (4,14 MPa)
Max. feed water supply volume
75 gpm (17 m3/h)
Max. feed water temperature
45°C
Max. feed water SDI15
5
Feed water pH Range during continuous operation
3 ≈ 10
Feed water pH Range during chemical cleaning
2 ≈ 12
Feed water residual chlorine concentration
< 0,1 ppm
Max. pressure drop on a single membrane element
15 psi (0,1 MPa)
Max. pressure drop on a single pressure vessel with six RO membrane elements
50 psi (0,34 MPa)