FROTEC

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Ultra Low Pressure Membrane Element

ULP series can work under ultra low pressure to reach as high permeate flow and salt rejection as regular low pressure membrane.It operates under approximately two thirds of the operating pressure of regular low pressure composite membrane and achieves a good salt rejection.

Ordering Guide

Model Membrane
area ft2(m2)
Operating
pressure
psi(MPA)
Average
permeated
flow
GPD(M3/D)
Stable
rejection
rate(%)
ULP4021 36(3.3) 150(1.05) 1000(3.8) 99.0
ULP4040 78(7.2) 150(1.05) 2500(9.8) 99.0
ULP8040 400(37) 150(1.05) 10500(39.5) 99.0

Test Condition

Temperature of Testing Solution:25°C
Concentration of Testing Solution(NaCl):2,000ppm
PH Value of Testing Solution:7.5-8
Recovery Rate of Single Membrane Element:15%

Operation Conditions

Max. Working Pressure:600 psi(4.14MPa)
Max. Feedwater Temperature:45°C
Max. Feedwater SDI:5.0
Free Chlorine Concentration of Feedwater:0.1mg/L
pH Range of Feedwater during Continuous Operation:3~10
pH Range of Feedwater during Chemical Cleaning:2~12
Max. Pressure Drop of Single Membrane Element:10psi(0.07Mpa)
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