The Proven Solution: Catalytic Filtration with DMI-65 DMI-65 is an Australian-engineered, silica-sand-based catalytic media infused with proprietary oxidation sites. Unlike manganese greensand, it does not need potassium permanganate regeneration, making operation safer and simpler aquacorp.com.au . A small dose of sodium hypochlorite (household chlorine) is enough to keep the surface active, giving up to 5–10 years of continuous performance with minimal attrition waterequip.com.au dmi65.com . Performance highlights Removes iron and manganese to < 0.001 mg/L, protecting downstream RO membranes and distribution lines dmi65.com . High linear velocities—up to 30 m³ m⁻² h⁻¹, roughly twice that of conventional media, so filters are smaller and capex drops waterequip.com.au . Wide pH window (5.8 – 8.6) with best results around neutral pH—ideal for most Indian bore- and surface-water chemistries waterequip.com.au . Certified to NSF/ANSI 61 and UK Regulation 31, making it potable-water safe dmi65.com . Technical Specifications at a Glance Appearance: Brown–black spherical grains Particle size: 20 – 40 mesh (0.3 – 0.6 mm effective) Bulk density: 91 lb ft⁻³ (≈ 1.46 t m⁻³) Specific gravity: 2.69 Uniformity coefficient (UC): 1.4 Service flow: 5 – 30 m³ m⁻² h⁻¹ Back-wash flow: 25 – 40 m³ m⁻² h⁻¹ (20 – 50 % bed expansion) Min. bed depth: 600 mm (24 in) Operating pH: 5.8 – 8.6 (optimal 7 – 7.5) Max. water temp.: 45 °C Expected life: 5-10 years with < 5 % annual attrition

DuPont™ FILMTEC™ BW30-4040 RO Membrane Upgrade your reverse osmosis system with the DuPont™ FILMTEC™ BW30-4040 (often referred to as “BW 8040-400”), a high-performance spiral-wound RO element designed for medium to large commercial and industrial applications. Engineered for exceptional salt rejection, durability, and consistent throughput, this membrane delivers reliable water quality even under challenging conditions. Technical Specifications Model: BW30-4040 (BW 8040-400) Membrane Type: Thin-film polyamide spiral-wound Rated Flow: 4,000 GPD (15,140 L/day) @ 225 psi, 77 °F, 1,000 ppm feed Minimum Salt Rejection: 99.5% @ 225 psi, 77 °F, 1,000 ppm feed Operating Temperature Range: 35 – 113 °F (2 – 45 °C) Maximum Operating Pressure: 600 psi (4.1 MPa) pH Range, Continuous Operation: 2 – 11 pH Range, Cleaning: 1 – 13 TDS Tolerance: Up to 5,000 ppm (higher TDS may require elevated feed pressure) Maximum Feed Flow: 15 gpm (56.8 L/min) Maximum Feed SDI: ≤ 5 (pre-filtered) Installation & Maintenance Tips Pre-Filtration: Use a 5 µm sediment filter upstream to protect against particulate fouling. Chlorine Removal: Install a carbon block filter ahead of the membrane to eliminate free chlorine and protect the polyamide layer. Optimal Feed Pressure ⚙️: Maintain feed pressure between 200–250 psi for best performance. Avoid pressure spikes. Regular Cleaning Cycle 🧹: Conduct a light cleaning (pH < 11) every 3–6 months, depending on feedwater quality. Employ appropriate low-fouling cleaning solutions. Performance Monitoring 📊: Track permeate flow and conductivity regularly. Replace the membrane if flow drops by 15% or rejection falls below 98%. Key Features High Salt Rejection 🚰 Removes up to 99.5% of dissolved solids (TDS), including heavy metals, lead, and nitrates—ensuring ultra-pure product water. Robust Flow Capacity 💧 Rated at approximately 4,000 gallons per day (GPD) under standard test conditions (77 °F, 225 psi, 1,000 ppm feed water), making it ideal for light-industrial, large office, or small plant installations. Heavy-Duty Construction 🛡 Polyamide thin-film composite design resists fouling and chlorine exposure (with proper upstream carbon pre-treatment), extending operational life. Wide pH Tolerance 🌡 Operates effectively across a pH range of 2–11 (continuous) and 1–13 during chemical cleaning, permitting flexible use in varying feedwater chemistries. Standard 8″ × 40″ Element Size 📏 Fits most industrial RO housings. Its large active area and spiral-wound configuration ensure efficient rejection and high flux.