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High rejection membrane element KM 4040-C1M1



Sea and highly mineralized water up to 45 g/l

Model A, mm B, mm B' (ATD), mm C, mm D, mm Weight, kg
KM 4040-C1M1 1016.00 100.00 0.00 19.10 26.70 4.05

Product description

Membrane material Composite polyamide
Membrane type ОРМ45КM
Design Spiral wound
Application Sea water desalination


Model Flux, GPD Rejection, % Area Spacer
m2 ft2 mm mil
KM 4040-C1M1 1 700 99.75 / 99.40 8.00 86.00 0.72 28.00

TEST CONDITIONS: test solution of NaCl 32 g/l, P=5,5 MPa, T=25°C, pH=7,5. Recovery -8%

Nominal rejection is reached after 48 hours of continuous operation on test solution.

Minimal rejection of a new element after 20 minutes test on test solution.

Operating conditions and technical data for designing
Maximum pressure drop, MPa 0,1
Operation temperature, С1 4-45
рН at operation1 2-11
рН at chemical cleaning (short time operation) 2-11 (t≤45°C); 1-13 (t≤35°C)*
Concentrate/permeate ratio on each element, min 10:1
SDI (15 minutes test), max 5
Turbidity, NTU max 1
Free chlorine content, mg/l max 0,1
Maximum feed flow, m3/hr 3,6
Chemical washing, T t≤45°C (рН 2-11); t≤35°C (рН 1-13)*
1) During continuous work with pH over 10,5 the temperature must not exceed 35°С. 2) Flow of each element in a batch may vary +/-15%. *In case of chemical cleaning with a solution pH exceeding 11,5 or at the temperature level more than 45°С please contact original manufacturer for consultation.