JAPANESE PRECISION & MULTI-LAYER SPIRAL MEMBRANE TECHNOLOGY
Engineered Reverse
Osmosis Membranes
State-of-the-art 13-layer spiral wound polyamide composite membranes engineered to operate effortlessly across 800 – 3500 TDS with guaranteed 95–97% salt rejection and zero-bypass vacuum sealed construction.
Individually batch certified under standard vacuum decay testing at 25°C.
Tested under aggressive hardness conditions with sustained, predictable permeate flow rates.
Precision dual-seal anti-bypass spiral winding architecture with up to 99.0% on industrial units.
Cross-linked aromatic polyamide thin-film composite sheet technology derived from USA laboratories.
Every single dry membrane unit is helium/vacuum verified for zero micro-tears and zero adhesive leach.
Precision Domestic Membrane Elements
Engineered for under-sink residential RO purifiers dealing with extreme hard water, deep borewell minerals, and variable municipal salinity.
Domestic Membrane Duo: 1812-80 PRO & 1812-80 ULTRA
Constructed with 100% food-grade imported dry membrane sheets that activate instantaneously on first flush. Built with multi-layer high-flux mesh that maintains consistent permeate speed without early pressure drop or fouling, ensuring crisp and naturally mineral-balanced drinking water.
1812-80 PRO Blue Domestic Element
Engineered specifically for heavy borewell sources with elevated hard minerals and scaling salts. Features reinforced spacer feed mesh to prevent bio-fouling and mineral crust formation.
1812-80 ULTRA Pure Membrane Element
Flagship high-rejection composite element incorporating OVAY certified membrane sheet technology for ultra-crisp, sweet taste balance and superior heavy metal (Arsenic, Lead, Fluoride) stripping.
Industrial Brackish Water Membrane Elements
High-surface-area commercial reverse osmosis membranes designed for commercial bottling facilities, institutional RO skids, pharmaceutical rinses, and severe process water loops.
Industrial Membrane Master Trio (LE-4021, LE-4040, LE-8040)
Engineered with advanced thin-film polyamide nanocomposite chemistry to provide industry-leading flow rates at significantly reduced operating pressures. Wrapped in heavy-duty filament wound fiberglass outer shells for maximum structural resilience against hydraulic shocks.
Cross-section multi-leaf spiral wind with ABS endcaps and high-tolerance brine seals
LE-4021 Compact Industrial
Ideal for compact commercial RO units, cafe purification systems, laboratory grade skids, and decentralized pilot test modules.
LE-4040 Standard Commercial
The industry benchmark for commercial drinking water plants, hotel supply, boiler feed pre-treatment, and institutional RO installations.
LE-8040 Heavy Industrial
High-volume workhorse engineered for large-scale municipal utilities, mineral water bottling lines, and high-recovery zero-liquid-discharge systems.
Technical Engineering Specification Matrix
Standard test conditions: 2,000 ppm NaCl solution (Industrial) at 225 psi / 250 ppm NaCl (Domestic) at 60 psi, 25°C, 15% recovery, pH 7.5–8.0.
| Model | Type / Element Size | Effective Area | Average Flux | Stable Rejection | Minimum Rejection | Optimal TDS |
|---|---|---|---|---|---|---|
| 1812-80 PRO | Domestic (1.8″ × 12″) | 4.2 ft² | 80 GPD (300 L/d) | 96.5% | 95.0% | Up to 2,500 PPM |
| 1812-80 ULTRA | Domestic (1.8″ × 12″) | 5.0 ft² | 100 GPD (380 L/d) | 97.2% | 96.0% | Up to 3,500 PPM |
| BW / LE - 4021 | Industrial (4.0″ × 21″) | 38 ft² (3.5 m²) | 1,000 GPD (3.79 m³/d) | 99.0% | 98.0% | Industrial Brackish |
| BW / LE - 4040 | Industrial (4.0″ × 40″) | 90 ft² (8.5 m²) | 2,400 GPD (9.1 m³/d) | 99.0% | 98.0% | Industrial Brackish |
| BW / LE - 8040 | Industrial (8.0″ × 40″) | 400 ft² (38 m²) | 11,000 GPD (41.6 m³/d) | 99.0% | 98.0% | Heavy Industrial |
Why Engineers Choose Pio Pure Membranes
13-Layer Dense Spiral Matrix
Maximized active filtration area with perfectly uniform sheet tension and automated ultrasonic weld lines that systematically eliminate channeling bypass.
100% Food-Grade Dry Membranes
Ships dry without toxic biocides or sodium metabisulfite chemical baths. Clean water rinse takes under 5 minutes with zero residual chemical flavor.
Vacuum Decay Tested
Every single manufactured element is subjected to automated vacuum decay testing before hermetic bagging, ensuring 100% field reliability without bypass leaks.
High Tolerance TDS Resistance
Engineered to continuously process 800 to 3,500 PPM feed water. High osmotic pressure resistance prevents sheet crushing and guarantees crystal clean water.
Need Custom RO Membrane Sizing or Plant Integration?
Consult directly with our certified water technologists for commercial membrane plant design, projection calculations, replacement schedules, or bulk distributor supply programs.