HYDRAMEM · Fouling-resistant RO membranes
HM 4040 FRE
High performance fouling resistant RO element.
Product description
- Membrane type
- Cross-linked fully aromatic polyamide composite
- Construction
- Spiral wound element
- Application
- Brackish water and waste water
- Feed spacer
- 34 mil (0.864 mm) with modified geometry
Performance
| Model | Diameter (inches) | Active surface area ft² (m²) | Salt rejection (%) | Product flow rate gpd (l/h) |
|---|---|---|---|---|
| HM 4040-FRE | 4.0 | 85 (7.89) | 99.6 | 2600 (409.5) |
Test conditions
- Feed water pressure
- 225 psi (15.8 kg/cm²)
- Feed water temperature
- 77 °F (25 °C)
- Feed water concentration
- 1500 ppm NaCl solution
- Recovery rate
- 15%
- Feed water pH
- 6.5 to 7
Dimensions
| A inches (mm) | B inches (mm) | C inches (mm) | D inches (mm) | Weight lbs (kg) |
|---|---|---|---|---|
| 40 (1016) | 4 (101.6) | 0.75 (19.05) | 1.18 (30) | 8.29 (3.76) |
All membrane elements are supplied with a brine seal, interconnector and O-rings.
Operating limits
- Maximum operating pressure
- 600 psi (42.18 kg/cm²)
- Maximum operating temperature
- 113 °F (45 °C)
- Feed water chlorine concentration
- < 0.1 ppm
- Feed water pH range, continuous operation
- 2 to 11
- Feed water pH range, chemical cleaning
- 1 to 13
- Maximum feed water SDI (15 minute test)
- SDI < 5
- Maximum feed turbidity
- NTU < 1.0
- Maximum pressure drop per element
- 15 psi
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