Instructions / Assembly

The Difference is in the Flat Sheet
AXEON Membranes utilize the leading brand of membrane flat sheet from the industry’s
leading membrane film technology manufacturer, which guarantees performance.
Low Energy Reverse Osmosis Designed to deliver high quality product water at moderately low pressure operation. Low
HF1-Series energy membranes offer solid performance and lower energy consumption when compared
to standard high rejection membranes.
Extra Low Energy Reverse Osmosis Designed to operate at less than half the feed pressure of standard high rejection membranes
HF4-Series and at up to 30% less pressure than other low energy membranes, resulting in enhanced
energy savings.
Ultra Low Energy Reverse Osmosis Utilizes AXEON’s innovative proprietary technology for high permeate production and
HF5-Series operating pressures as low as 80 psi. Provides additional efficiency when compared to extra
low energy membranes.
High Rejection Reverse Osmosis Designed to provide high salt rejection for tap water and light brackish water applications
HR3-Series while operating at standard 225 psi pressures. High rejection membranes offer better salt
rejection than low energy elements but require more operating energy.
Nanofiltration Designed to provide low operating pressures for nanofiltration applications.
NF3-Series
Nanofiltration Designed to provide higher rejection levels and low operating pressures for nanofiltration
NF4-Series applications.
Commercial Membrane Elements
Series Flat Sheet Used
Applied Pressure
psi (bar)
Permeate Flow Rate
Range gpd (m3/d)
Nominal Salt
Rejection (%)
Sizes Available
HF1
Low Energy RO 150 (10.34) 225 (0.85) – 2500 (9.46) 99.0
2514, 2521
2540, 4014
4021, 4040
HF4
Extra Low Energy RO 100 (6.89) 225 (0.85) – 2500 (9.46) 99.0
2514, 2521
2540, 4014
4021, 4040
HF5
Ultra Low Energy RO 80 (5.52) 600 (2.27) – 2500 (9.46) 98.5
4014
4021, 4040
HR3
High Rejection RO 225 (15.51) 150 (0.57) – 2200 (8.33) 99.5
2514, 2521
2540, 4014
4021, 4040
NF3
Nanofiltration 70 (4.83) 200 (0.76) – 2500 (9.46) 40.0 – 50.0
2514, 2521
2540, 4014
4021, 4040
NF4
Nanofiltration 70 (4.83) 200 (0.76) – 2000 (7.60) 80.0 – 90.0
2514, 2521
2540, 4014
4021, 4040