HYDRAMEM · Seawater RO membranes
HM 8040 SWE 400
High performance sea water RO element.
Product description
- Membrane type
- Cross-linked fully aromatic polyamide composite
- Construction
- Spiral wound element
- Application
- Sea water
- Feed spacer
- 34 mil (0.864 mm) with modified geometry
- Boron rejection (typical)
- 90%
Performance
| Model | Diameter (inches) | Active surface area ft² (m²) | Salt rejection (%) | Product flow rate gpd (l/h) |
|---|---|---|---|---|
| HM 8040-SWE-400 | 8.0 | 400 (37.16) | 99.7 | 10000 (1577) |
Test conditions
- Feed water pressure
- 800 psi (56.25 kg/cm²)
- Feed water temperature
- 77 °F (25 °C)
- Feed water concentration
- 32000 ppm NaCl solution
- Recovery rate
- 10%
- Feed water pH
- 7.2
Dimensions
| A inches (mm) | B inches (mm) | C inches (mm) | Weight lbs (kg) |
|---|---|---|---|
| 40 (1016) | 7.9 (201) | 1.125 (29) | 32.0 (14.5) |
All membrane elements are supplied with a brine seal, interconnector and O-rings.
Operating limits
- Maximum operating pressure
- 1200 psi (84.37 kg/cm²)
- Maximum operating temperature
- 113 °F (45 °C)
- Maximum feed flow
- 75 GPM (17.0 m³/h)
- 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
- Maximum pressure drop per vessel
- 50 psi
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