Water Purification Supplies Mb-2540-Sw Sea Water RO Membrane 2.5" X 40"

The Water Purification Supplies MB-2540-SW (part no. SW2540-HRLE-WPS) is a 2.5" x 40" sea water spiral-wound reverse osmosis membrane element rated at 600 GPD with 99.6% nominal salt rejection. It is designed for seawater desalination on boats, islands and coastal sites, with high-rejection, low-energy (HRLE) chemistry. Supplied wholesale by All For Water.

Specifications & operating limits

• Nominal / minimum salt rejection: 99.6% / 99.3%
• Permeate flow: 600 GPD (2.3 m³/d), ±15%
• Active membrane area: 28 ft² (2.6 m²)
• Feed spacer: 28 mil
• Test conditions: 32,000 ppm NaCl, 800 psi (55 bar), 77 °F (25 °C), 8% recovery, pH 7 – 8
• Max. operating pressure: 1,000 psi (68.9 bar)
• Max. feed flow: 1.4 m³/h (6.2 GPM)
• Max. operating temperature: 113 °F (45 °C)
• Max. pressure drop per element: 15 psi (1.0 bar)
• pH range: 2 – 11 continuous, 1 – 13 during cleaning
• Feed free chlorine: <0.1 mg/L
• Max. feed SDI (15 min): 5
• Dimensions: length 40" (1016 mm), diameter 2.4" (61 mm), permeate tube OD 0.75" (19 mm), tube extension 1.19" (30.2 mm)

Salt rejection should be verified after 24 – 48 hours of continuous operation; results depend on feed water quality and operating conditions. Request a quote for current wholesale pricing and volume discounts.