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Brackish Water Reverse Osmosis(RO) Element

N-TECH brackish water reverse osmosis (RO) membrane elements are widely used in industrial and municipal fields such as industrial pure water production, brackish water desalination, and advanced treatment of reclaimed water reuse. The reverse osmosis membrane sheets are manufactured using world-leading composite membrane coating technology and fully automated production lines, ensuring consistent reliability and stability of the products. All brackish water reverse osmosis membranes exhibit excellent filtration performance and outstanding anti-fouling properties, guaranteeing the long-term stable operation of desalination system.

Category:

Reverse Osmosis Membrane Elements

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Overview

N-TECH brackish water reverse osmosis membrane elements are available in diameters of 2.5 inches, 4 inches, and 8 inches, compatible with various standard pressure vessels, and are easy to install and replace. To address different raw water sources, N-TECH has developed multiple series of brackish water reverse osmosis membrane elements, including XLP, LE and FR.

N-TECH brackish water reverse osmosis membrane elements are committed to "energy saving and emission reduction," delivering a high-quality experience to customers.

BW:

Balanced flow and rejection

BW-FR:

Fouling-resistance, High rejection

BW-XFR:

eXtra fouling-resistance, High rejection

LE:

Low energy, High flow

LE-FR:

Low energy, Fouling-resistance

XLP:

eXtra low pressure

Product	Permeate Flow Rate GPD(m³/d)	Stabilized Salt Rejection (%)	Minimum Salt Rejection(%)	Active Membrane Area ft²(m²)	Feed Spacer (mil)
High Rejection¹	BW-365-34	10500(39.7)	99.6	99.4	365(34)	34
	BW 400	11000(41.6)	99.6	99.4	400(37)	28
	BW 440	12500(47.3)	99.6	99.4	440(41)	28
	BW 400-34	11000(41.6)	99.6	99.4	400(37)	34
Anti- fouling¹	BW-FR 365-34	10500(39.7)	99.6	99.4	365(34)	34
	BW-FR 400-34	11000(41.6)	99.6	99.4	400(37)	34
	BW-FR 400-LD	11000(41.6)	99.6	99.4	400(37)	34-LD
	BW-XFR 400-34	11500(43.5)	99.7	99.5	400(37)	34
	BW-XFR 400-LD	11500(43.5)	99.7	99.5	400(37)	34-LD
Ultra-High Rejection¹	BW-HR 400	11000(41.6)	99.7	99.5	400(37)	28
Ultra-High Rejection¹	BW-HR 440	12500(47.3)	99.7	99.5	440(41)	28
Low Energy²	LE 400	11000(41.6)	99.5	99.2	400(37)	28
Low Energy²	LE 440	12500(47.3)	99.5	99.2	440(4 1)	28
Anti-fouling²	LE-FR 400-34	11000(41.6)	99.5	99.2	400(37)	34
	LE-FR 400-LD	11000(41.6)	99.5	99.2	400(3 7)	34-LD
	LE-XFR 400-34	11000(41.6)	99.6	99.4	400(37)	34
	LE-XFR 400-LD	11000(41.6)	99.6	99.4	400(37)	34-LD
High Rejection²	LE-HR 400	10500(39.7)	99.6	99.4	400(37)	28
High Rejection²	LE-HR 440	11000(41.6)	99.6	99.4	440(41)	28
eXtra Low Pressure³	XLP 400-34	13200(50.0)	99.2	98.7	400(37)	34
	XLP 400-LD	13200(50.0)	99.2	98.7	400(3 7)	34-LD
	XLP440	14000(53.0)	99.2	98.5	440(41)	28

Test condition 2: 2000ppmNaCl, 150psi (10.3bar), 77ºF (25ºC), pH7, 15% recovery.

Test condition 3: 500ppmNaCl, 100psi (6.9bar), 77ºF (25ºC), pH7, 15% recovery.

Light Commercial Reverse Osmosis(RO) Elements

N-TECH commercial reverse osmosis (RO) membrane elements are widely utilized in scenarios where the treatment capacity is below 2.3m³/h or for desalination processes of groundwater, surface water, and municipal water with a salinity of up to 5000mg/L.

They are ideally suited for applications including drinking water stations, direct drinking water equipment in residential communities or office buildings, and small-scale pure water systems for laboratories and medical facilities, delivering dependable and stable system performance.

Product	Permeate Flow Rate GPD(m³/d)	Stabilized Salt Rejection (%)	Minimum Salt Rejection(%)	Active Membrane Area ft²(m²)	Feed Spacer (mil)
High Rejection¹	BW-4040	2700(10.2)	99.5	99.3	92(8. 5)	28
	BW-4040-34	2300(8.7)	99.5	99.3	82(7.6)	34
	BW-4021	1000(3.8)	99.5	99.3	36(3.3)	28
	BW-2540	800(3.0)	99.5	99.3	28(2.6)	28
Low Energy²	LE-4040	2500(9.5)	99.5	99.2	92(8. 5)	28
	LE-4021	1000(3.8)	99.5	99.2	36(3. 3)	28
	LE-2540	800(3.0)	99.5	99.2	28(2. 6)	28
eXtra Low Pressure³	XLP-4040	3000(11.4)	99.2	98.5	90(8.3)	28
	XLP-4021	1200(4.5)	99.2	98.5	36(3.3)	28
	XLP-2540	900(3. 4)	99.2	98.5	28(2.6)	28

Test condition 1: 2000ppmNaCl, 225 psi (15.5bar), 77ºF (25ºC), pH7, 4040, 2540 15% recovery, 4021 8% recovery.

Test condition 2: 2000ppmNaCl, 150 psi (10.3bar), 77ºF (25ºC), pH7, 4040, 2540 15% recovery, 4021 8% recovery.

Test condition 3: 500ppmNaCl, 100 psi (6.9bar), 77ºF (25ºC), pH7, 4040, 2540 15% recovery, 4021 8% recovery.

Keywords: Brackish Water Reverse Osmosis(RO) Element

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