High rejection membrane element KM 4040-C1M1

Application

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

Specification

Model	Flux, GPD	Rejection, %	Area		Spacer
Model	Flux, GPD	Rejection, %	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.