Ultrafiltration membrane

Technical Advantages: Leveraging fully in-house‑developed core manufacturing technologies, our polyvinylidene fluoride (PVDF) hollow‑fiber ultrafiltration membranes deliver high flux, exceptional filtration accuracy, excellent mechanical properties, and permanent hydrophilicity. A uniquely optimized membrane structure significantly reduces transmembrane pressure difference and operational energy consumption. Automated production lines and robotic processes further enhance manufacturing efficiency while ensuring consistently superior product quality. Our products are widely deployed in power‑plant water treatment, mine‑water resource recovery, zero‑discharge treatment of coal‑chemical wastewater, seawater desalination, reclaimed‑water reuse, industrial wastewater recycling, and municipal applications.

Reverse osmosis membrane

Technical Advantages: The system employs a domestically leading, fully automated intelligent production line, resulting in minimal variation among membrane elements and consistently stable product quality, thereby ensuring long-term system reliability. Additionally, a proprietary anti-fouling patent technology is used to modify the membrane surface, altering its surface charge and smoothness, enhancing hydrophilicity, and reducing fouling by contaminants and microorganisms, thus extending the service life of the membrane elements. Longyuan reverse osmosis membranes exhibit excellent anti-fouling performance, coupled with high water production rates and high desalination efficiency, meeting the processing requirements of diverse applications and effectively lowering operating costs.

Filter bag

Technical Advantages: Our needle‑felt filter bag production line is equipped with the most advanced domestic machinery, featuring a dual‑bin, two‑stage cotton blending system, double carding, double web‑forming, and online quality‑control technologies. Compared with filter media produced by peer companies, our products offer superior blending uniformity and higher initial tensile strength. Our membrane‑lamination technology also leads the industry, employing high‑precision heated rollers to thermally bond an ultra‑low‑resistance, high‑efficiency PTFE membrane, ensuring excellent lamination adhesion and filtration accuracy while efficiently capturing fine particulates from flue gas. In addition, our automated filter‑bag hanging line delivers high production efficiency and consistent quality, providing robust assurance for the reliable and stable operation of baghouse dust collectors in coal‑fired power units.