Datasheet summary
LG BW 4021 R
Engineering summary from PDF text extraction for LG BW 4021 R. Verify every value with the OEM datasheet.
Summary
Product identification
LG BW 4021 R are brackish water reverse osmosis (RO) membranes. They are designed for high rejection and incorporate innovative Thin Film Nanocomposite (TFN) technology, providing superior performance with intrinsic anti-fouling properties. These membranes are suitable for high salinity brackish water and wastewater reuse applications.
Product Details
- Active Membrane Area: 34 ft² (3.2 m²)
- Permeate flow rate: 1,000 GPD (3.8 m³/d)
- Stabilized Salt Rejection: 99.6 %
- Minimum Salt Rejection: 99.3 %
- Feed Spacer: 28 mil
Test Conditions: 2,000 ppm NaCl at 25°C (77°F), 225 psi (15.5 bar), pH 7, Recovery 8%. Permeate flows for individual elements may vary +/-20%.
Dimensions
- A: 533 mm (21 in.)
- B: 100 mm (3.9 in.)
- C: 19 mm (0.75 in.)
- D: 29 mm (1.1 in.)
- Weight: 2.3 kg (5.1 lbs.)
Operating Limits
- Max. Applied pressure: 600 psi (41 bar)
- Max. Operating temperature: 45°C (113°F)
- pH Range, Continuous (Cleaning): 2-11 (2-12)
- Max. Pressure drop (ΔP) for each element: 15 psi (1.0 bar)
Feed water
- Max. Chlorine concentration: < 0.1 ppm
- Max. Feedwater turbidity: 1.0 NTU
- Max. Feedwater SDI (15 mins): 5.0
- Max. Feed flow: 16 gpm (3.6 m³/h)
Disclaimer: This summary is generated from an extracted text and may not include all figures, footnotes, or the latest revisions present in the official PDF datasheet. For contractual data, please refer to the specific OEM PDF revision used on your project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.