Shanghai Xuanyi Environmental Technology Co., Ltd. is a leading provider of Silt Density Index (SDI) testing solutions. We are committed to providing customers with a full range of SDI testing instruments to ensure efficient, stable, and long-term operation of water treatment systems. We are your trusted partner.
We offer a comprehensive SDI product line, including traditional manual SDI test kits, portable automatic SDI analyzers for rapid field deployment, and continuous automatic online SDI monitors for 24/7 real-time water quality monitoring. Our products comply with ASTM D4189-07 (2014) and are widely used in power generation, desalination, pharmaceuticals, semiconductors, food and beverage, and municipal water treatment. They effectively protect reverse osmosis (RO) and nanofiltration/ultrafiltration (NF/UF) systems, reduce membrane fouling, and significantly reduce operating costs.
In addition to SDI testers, we provide a comprehensive service offering, from application analysis and product selection to technical training and after-sales support, ensuring customers obtain reliable data and achieve operational excellence. Shanghai Xuanyi not only provides products but also offers trusted solutions and service guarantees to water industry professionals worldwide.
