HID TW-4040XLE low pressure RO membrane

HID TW-4040XLE reverse osmosis membrane in the standard 4040 size. Low pressure design for lower running costs, with anti-fouling flat sheet film.

Performance

• Flow rate: 2,600 gallons per day
• Stabilised salt rejection: 98% (minimum 97.5%)
• Test conditions: 100 psi, 750 ppm NaCl
• Feed spacer: 28 mil

Dimensions

• Diameter: 4.0 in (100.1 mm)
• Length: 40 in (1016 mm)
• Centre tube: 0.75 in (19.1 mm)

Operating limits

• Maximum operating temperature: 45°C
• Maximum operating pressure: 300 psig
• Maximum pressure drop across a vessel: 50 psi (3.4 bar)
• Continuous feed pH: 2 to 11
• Maximum feed turbidity: 1 NTU
• Maximum feed SDI: 5
• Chlorine: below 0.1 ppm

Fitting and care

• Avoid sudden changes in pressure or flow when starting, stopping or cleaning. Raise feed pressure gradually over 30 to 90 seconds.
• Discard the first hour of purified water after fitting.
• Keep the membrane wet once it has been used. Store it in storage solution during long shutdowns.
• Operating outside these limits voids the manufacturer's warranty.