Membranes for Water Filter Membrane Systems from Industrial Water Equipment Ltd

Membrane Configuration

All standard membranes have a taped wrapped outer, coded with the suffix 'T'. For high pressure usage a fibreglass outer wrap is applied, suffix 'F'. Ends are available with either flush cut design or external permeate design.

A series 400 elements feature 400 square feet of membrane surface area, providing increased membrane packing density, and reducing capital costs by 10 - 15%

Operating and Design Parameters

• Membrane: Thin Film Membrane (TFM)
• Typical operating pressure: 14bar
• Maximum pressure: 42 bar
• Maximum temperature: 50ºC
• pH: Optimum rejection at pH 7.0 - 7.5 operating pH range 4.0 - 11.0 cleaning pH range 2.0 - 11.5
• Feed NTU: <1
• Feed SDI: <3
• Chlorine Tolerance: 1,000 ppm-hours, dechlorination recommended
• Permete flow: Maximum should not exceed specifications

The A-Series or proprietary thin-film reverse osmosis membrane elements are characterized by high flux and excellent sodium rejection. This series meets the requirements of a majority of pure water applications and retro fits all other similar membranes.

AG 99.5% high rejection range

AG high rejection brackish water elements are selected when high rejection is desired with a typical operating pressure of 15 bar. These elements allow moderate energy savings and are considered a standard in the industry.

Specifications are based on a 2,000 mg/L NaCI solution at 15bar operating pressure, 25ºC, pH 7.5, 15% recovery, after 24 hours. Individual element flux may vary.

2.5" Membranes
Product Code	GPD (m3/d)	NaCI Rejection Average / Minimum	Active Area ft2 (m2)
AG2514 TF	180 (0.68)	99.5% / 99.0%	10 (0.91)
AG2521 TF	300 (1.14)	99.5% / 99.0%	14 (1.3)
AG2540 TF	710 (2.7)	99.5% / 99.0%	27 (2.5)

 

4" Membranes
Product Code	GPD (m3/d)	NaCI Rejection Average / Minimum	Active Area ft2 (m2)
AG4021 TF	1,050 (4.0)	99.5% / 99.0%	40 (3.8)
AG4026 F	1,450 (5.5)	99.5% / 99.0%	55 (5.1)
AG4040 TF	2,200 (8.3)	99.5% / 99.0%	90 (8.4)
AG4040 FF	2,200 (8.3)	99.5% / 99.0%	85 (7.9)

 

8" Membranes
Product Code	GPD (m3/d)	NaCI Rejection Average / Minimum	Active Area ft2 (m2)
AG8040F	9,200 (34.8)	99.5% / 99.0%	350 (32.5)
AG8040F 400	10,500 (39.7)	99.5% / 99.0%	400 (37.2)

AK 99% rejection range

AK Low Pressure Brackish Water Elements are selected when high rejection and extremely low operating pressures are desired. These elements allow significant energy savings since good rejection is achieved at operating pressures as low as 7 bar.

Specifications are based on a 500 mg/L NaCI solution at 8 bar operating pressure, 25ºC, PH 7.5, 15% recovery, after 24 hours. Individual element flux may vary 15%.

2.5" Membranes
Product Code	GPD (m3/d)	NaCI Rejection Average / Minimum	Active Area ft2 (m2)
AK2514 TF	180 (0.68)	99.0% / 98.0%	10 (0.9)
AK2521 TF	300 (1.14)	99.0% / 98.0%	14 (1.3)
AK2540 TF	710 (2.7)	99.0% / 98.0%	27 (2.5)

 

4" Membranes
Product Code	GPD (m3/d)	NaCI Rejection Average / Minimum	Active Area ft2 (m2)
AK4040 TF	2,200 (8.3)	99.0% / 98.0%	85 (7.9)
AK4040 FF	2,200 (8.3)	99.0% / 98.0%	90 (8.3)

 

8" Membranes
Product Code	GPD (m3/d)	NaCI Rejection Average / Minimum	Active Area ft2 (m2)
AK8040F	9,200 (34.8)	99.0% / 98.0%	350 (32.5)
AK8040F 400	10,500 (39.7)	99.0% / 98.0%	400 (37.2)