AXEON HF4 and HF5 Series membranes have a range of benefit and features. These membranes are ultra low energy with high flow capacities and an improved system performance. Individually vacuum tested with superior quality and cost saving.
Membrane Ratings
| Membrane | HF4 4021 HF5 4021 |
HF4 4021 HF5 4021 |
| GPD (US) | 1000 | 2860 |
| Size | 4.0 x 21 | 4.0 x 40 |
| Stabilized Salt Rejection (%) | 98% | 98% |
| Minimum Salt Rejection (%) | 99% | 99% |
Performance specifications based on: 500 mg/l sodium chloride, 100 psi (1.08 MPa) applied pressure, 77°F (25°C) feed water temperature, pH 8 and 10% recovery.
Element permeate flow may vary -15%/+25%.
These membranes produce the same product flow as the earlier models but at a lower pressure (about 50-60% lower).
Please note: Do not run these membranes at a pressure that will produce more than their rated product flow rate. This will lead to premature fouling of the membrane resulting in drop in permeate flow and higher TDS of the permeate.
Recommended Operation Conditions
| Maximum Applied Pressure | 300 psi (2.1 MPa) |
| Maximum Feed Flow Rate –
2″ elements |
3 gpm 6 gpm 17 gpm |
| Maximum Operating Temperature | 113° F (45° C) |
| Maximum Feed Water Turbidity | 1 NTU |
| Maximum Feed Water SDI (15min) | 4 |
| Chlorine Tolerance | 0 |
| Feed water pH Range, continuous operation | 2-11 |
| Feed water pH Range, short-term cleaning (30 min) | 1-12 |
| Single Element recovery % | 15 |
System and Membrane Warranty
All our systems and membranes come with a 1 year warranty from the date of purchase. This warranty excludes expendable filter cartridges and resins. Read more here.