Product Overview
Hydraulic Filter is classic product for our oil‑system purification solution, and reverse osmosis membrane element LF‑SW2‑8040‑PRO seawater‑desalination RO‑membrane belongs to Water Filter Element product portfolio. It is high‑pressure‑resistant aromatic polyamide composite membrane element, designed for high‑salinity seawater raw‑water. It can realize one‑stage seawater desalination, producing qualified fresh‑water for island residents and offshore platform living‑water demand.
Basic Technical Parameters
| Model | LF‑SW2‑8040‑PRO |
| Membrane area | 400 ft² (37.2 ㎡) |
| Average water‑production | 9000 GPD (34.0 m³/d) |
| Stable salt‑rejection rate | 99.6% |
| Test‑condition | 800 psi,32000ppm NaCl,25℃,pH8.0±0.5,recovery‑rate 8% |
| Max operating pressure | 1200 psi (8.28MPa) |
| Operating‑temperature | 0‑45℃ |
| Max feed‑water SDI15 | 5.0 |
Island & Off‑Shore Platform Application Scenarios
LF‑SW2‑8040‑PRO reverse osmosis membrane element is oriented for high‑salinity seawater desalination. On remote island projects, local fresh‑water resource is scarce; this SW‑series membrane completes one‑stage seawater desalination to get life‑support fresh‑water. Off‑shore oil‑gas platform also widely adopts this membrane element for platform domestic‑water preparation. Seawater must go through multi‑stage pre‑treatment: multimedia filtration + UF ultrafiltration + security‑filter cartridge. You can select High Flow Filter Cartridge as security‑filtration consumable. Do not use SW‑series membrane for ordinary brackish‑water project; BW‑series brackish‑water RO membrane will bring better cost‑effectiveness. For equipment QC‑reference please check Industrial Oil Purification Equipment quality‑management‑system.
Core Product Advantages
High‑pressure‑resistant membrane‑material structure adapts 800psi standard seawater‑desalination test pressure. Stable high salt‑rejection performance for natural seawater with 32000ppm TDS. Optimized flow‑channel design reduces concentration‑polarization risk under high‑salinity working‑condition. Standard 8040 external dimension fits mainstream seawater pressure‑vessel for interchange replacement. Every membrane‑element completes high‑pressure‑simulation seawater‑desalination test before factory‑delivery.
Manufacturer & Factory Strength
Xinxiang Lifeierte Filter Corp.,Ltd (Stock Code:837936) supplies full SW‑series seawater‑desalination membrane‑elements, covering 2521,4021,4040,8040 specifications. We have accumulated project experience for island desalination and offshore platform water‑treatment EPC project. We can provide matching pre‑treatment filter‑cartridge together as one‑set supply. For technical‑support please contact our engineering team.
FAQ
Q1：What raw‑water condition is LF‑SW2‑8040‑PRO suitable for?
A1：Mainly for seawater with TDS around 32000ppm, island and offshore‑platform one‑stage seawater‑to‑fresh‑water desalination.
Q2：Can I install SW‑series seawater membrane for ordinary brackish‑water project?
A2：Technically installable, but cost‑performance is poor; BW‑series brackish‑water RO membrane is recommended for TDS＜2000ppm raw‑water.
Q3：What pre‑treatment is required for seawater entering SW‑membrane?
A3：Multi‑stage pre‑treatment is mandatory: multimedia filtration, ultrafiltration UF, security‑filter cartridge; guarantee feed‑water SDI15 ≤5.0, free‑chlorine＜0.1mg/L.
Q4：What is maximum allowable operating pressure for LF‑SW2‑8040‑PRO?
A4：Max operating pressure reaches 1200 psi (8.28MPa).
Q5：Do you supply small‑size SW‑2540 / SW‑4040 membrane for small‑capacity test‑machine?
A5：Yes, small‑specification seawater‑desalination membrane‑elements are available for pilot‑test and small‑skid equipment.
Related Products: Water Filter Element
Reference standard: ASTM D4516 Reverse‑osmosis membrane‑element performance‑test specification
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