PURIFY BW-4040FR 4-Inch Fouling-Resistant RO Membrane

PURIFY BW-4040FR 4-Inch Fouling-Resistant Reverse Osmosis Membrane

Industrial brackish-water reverse osmosis membrane element. Specifications below are transcribed from the supplied PURIFY BW-4040FR technical datasheet.

Technical Specifications

• Model: BW-4040FR
• Nominal element size: 4-inch diameter × 40-inch length
• Permeate flow rate: 2,400 GPD (9 m³/day)
• Effective membrane area: 90 ft² (8.4 m²)
• Salt rejection: 99.5%
• Test pressure: 225 psi (1.55 MPa)
• Test feed-water TDS: 2,000 ppm
• Test conditions: 2,000 ppm solution, 25 ± 2°C, pH 7.5–8.0, recovery 15 ± 1%
• Single-element permeate-flow variation: ±15%

Maximum Operating Limits

• Maximum operating pressure: 600 psi (4.14 MPa)
• Maximum feed-water flow: 75 GPM (17 m³/h), as printed on the supplied datasheet
• Maximum operating temperature: 45°C
• Maximum SDI (15 min): 5
• Residual chlorine in feed water: below 0.1 ppm
• Continuous operating pH: 2–11
• Chemical-cleaning pH: 1–13
• Maximum pressure drop per membrane element: 15 psi (0.1 MPa)
• Maximum pressure drop per pressure vessel with six membranes: 50 psi (0.34 MPa)

Dimensions

• Length: 40 in (1,016 mm), tolerance ±1.0 mm
• Outside diameter: 3.9 in (99 mm), tolerance ±1.0 mm
• Core dimension C: 0.75 in (19.1 mm), tolerance ±0.5 mm
• Dimension D: 1.04 in (26.5 mm), tolerance ±0.5 mm

Refer to the supplied technical datasheet before design or operation.