HYDRAMEM · Specialty membrane solutions
HM HSRO-FF
Heat sanitizable brackish water RO element.
Product description
- Membrane type
- Extra low energy, heat sanitizable composite polyamide
- Construction
- Spiral wound full-fit element, net wrapped
- Application
- Brackish water purification
Performance
| Model | Diameter (inches) | Active surface area ft² (m²) | Salt rejection (%) | Product flow rate gpd (l/h) |
|---|---|---|---|---|
| HM 4021-HSRO-FF | 4.0 | 35 (3.2) | 99.0 | 1025 (161.6) |
| HM 4040-HSRO-FF | 4.0 | 85 (7.9) | 99.2 | 2600 (408.3) |
| HM 8040-HSRO-FF | 8.0 | 400 (37.2) | 99.2 | 12000 (1891.6) |
Minimum salt rejection 99% (4040/8040) and 98% (4021). Permeate flow may vary +/-15%.
Test conditions
- Feed water pressure
- 100 psi (6.9 kg/cm²)
- Feed water temperature
- 77 °F (25 °C)
- Feed water concentration
- 500 ppm NaCl solution
- Recovery rate
- 15% for 4040/8040 and 10% for 4021
- Feed water pH
- 8.0
Physical dimensions
| Element | Weight kg (lb) | A mm (inches) | B mm (inches) | C mm (inches) | Permeate tube |
|---|---|---|---|---|---|
| HM 4021-HSRO-FF | 1.8 (4) | 533.4 (21) | 101 (3.98) | 19.1 (0.75) | Male |
| HM 4040-HSRO-FF | 3.6 (8) | 1016 (40) | 101 (3.98) | 19.1 (0.75) | Male |
| HM 8040-HSRO-FF | 16.4 (36) | 1016 (40) | 200 (7.89) | 28.6 (1.125) | Female |
For female elements C is the inner diameter; for male elements C is the outer diameter.
Operating limits
- Maximum operating pressure
- 600 psi (42.1 kg/cm²)
- Maximum operating temperature
- 113 °F (45 °C); 95 °F (35 °C) at pH above 10
- Maximum sanitizing temperature
- 85 °C (185 °F)
- Feed water chlorine concentration
- < 0.1 ppm
- Feed water pH range, chemical cleaning
- 1 to 12
- Maximum feed water SDI (15 minute test)
- SDI < 5
- Maximum feed turbidity
- NTU < 1.0
- Maximum pressure drop
- 10 psi per element; 60 psi per housing
Also in specialty membrane solutions
Connect with our water and membrane experts
Have a project, technical requirement or membrane application to discuss? Connect with our team for expert guidance and tailored water treatment solutions.
Phone hours: 9:00 AM to 5:30 PM IST, Monday to Friday and select Saturdays.