Brackish Water Extra Low Pressure Elements

Brackish Water Extra Low Pressure Elements

Membrane Material: Composite Polyamide
Membrane Type Design: ORM33K Spiral wound
Features: Fiberglass shell (-C) or shrink film-wrapped (-F)

 

Model Flow* Rejection Area Spacer
M3/hr GPD Normal**/minimal*** m2 ft2 mm mil
КCН 8040-C 1,96 12 400 99,1/98,3 41 440 0,67 26
КCН 8040-C3 1,66 10 500 99,1/98,3 35 375 0,86 34
КCН 8040-C(-D) 1,96 12 400 99,1/98,0 41 440 0,67 26
КCН 8040-C3(-D) 1,66 10 500 99,1/98,0 35 375 0,86 34
КCН 8040-F 1,96 12 400 99,1/98,3 41 440 0,67 26
КCН 8040-F3 1,66 10 500 99,1/98,3 35 375 0,86 34
КCН 8040-F(-D) 1,96 12 400 99,1/98,0 41 440 0,67 26
КCН 8040-F3(-D) 1,66 10 500 99,1/98,0 35 375 0,86 34
КCН 4040-C 410 2600 99,1/98,3 8,6 93 0,67 26
КCН 4040-C(-D) 410 2600 99,1/98,0 8,6 93 0,67 26
КCН 4040-F 410 2600 99,1/98,3 8,6 93 0,67 26
КCН 4040-F(-D) 410 2600 99,1/98,0 8,6 93 0,67 26

 

Test Conditions: test solution of NaCl 500 mg/l, P=0,69 MPa, T=25°C , pH=7,5. Recovery – 15%
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:

Recommended operation pressure, MPa 0,6-0,9
Maximum operation pressure, MPa 4,1/2,1
Maximum pressure drop, MPa 0 ,07
Operation temperature, 0  c 11 4-45
pH at continuous operation at T<35°C 2-11
pH at continuous operation at T<45°C 3-10,5
Chemical cleaning, temperature, °C* *** T<45 T<35 T<25
CIP pH (short time operation) 2-11 1-13 1-13
Free chlorine content, mg/I max 0,1
Maximum feed flow, m3/hr 17 (KCH 8040-C (F))
3.6 (KCH 4040-C (F))
Concentrate/permeate ratio on each element, min 5:1
SDI (15 minutes test), max 5
Turbidity, NTU max 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.


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