DUBHE Reverse Osmosis Membrane Elements are spiral-wound thin-film composite elements based on aromatic polyamide separation layers, designed for high-efficiency desalination and water purification. Covering extremely low-pressure, ultra-low-pressure, low-pressure, medium/high-pressure, anti-fouling, and seawater desalination series in standard 4040/8040 sizes, they deliver stable salt rejection up to 99.7% and high permeate flow with optimized hydrodynamic structure and strong fouling resistance. Suitable for municipal water, brackish water, seawater, industrial water, ultrapure water production, wastewater reclamation, and zero liquid discharge projects, they feature stable performance, low energy consumption, dry shipping for easy transport and storage, and reliable long-term operation under wide pH and temperature conditions.

The TMY20D-400 is a high-rejection, high-productivity, high chemical durability, and fouling-resistant membrane element manufactured with the latest materials and production technology. With an effective membrane area of 400 square feet and a 34-mil feed spacer, it is suitable for various applications including desalination of brackish water with TDS up to 10,000 ppm, desalination of slightly polluted surface water, and reuse of cooling tower blowdown water. The TMY20D-400 is currently the brackish water membrane element with the highest water production and highest salt rejection; it features the widest cleaning pH range (pH 1-13), enabling quick and effective resolution of membrane fouling issues; the RO membrane can withstand minor hypochlorite exposure incidents within a certain range caused by operational errors, thereby enhancing system safety.