HYDRAMEM · Nanofiltration membranes
HM 4040 NFE 9840
High performance nanofiltration element.
Product description
- Membrane type
- Piperazine based
- Construction
- Spiral wound element
- Application
- Bivalent and polyvalent ion removal
- 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-NFE 9840 | 4.0 | 85 (7.89) | 98 | 1700 (267.75) |
Test conditions
- Feed water pressure
- 110 psi (7.73 kg/cm²)
- Feed water temperature
- 77 °F (25 °C)
- Feed water concentration
- 2000 ppm MgSO₄ in softened tap water
- Recovery rate
- 15%
- Feed water pH
- 8
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) | 8.28 (3.76) |
Operating limits
- Maximum operating pressure
- 600 psi (42.18 kg/cm²)
- Maximum operating temperature
- 104 °F (40 °C)
- Maximum cleaning temperature
- 104 °F (40 °C)
- Feed water chlorine concentration
- Not detectable
- Feed water pH range, continuous operation
- 2 to 11
- Maximum feed water SDI (15 minute test)
- SDI < 5
- Maximum feed turbidity
- NTU < 1
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