YAAO.Founded in 1991 and based in Shanghai, YAAO is a leading valve manufacturer with substantial capabilities. The company operates a 40,000-square-meter facility, has a registered capital of 150 million yuan, employs over 300 people, and boasts an annual production capacity exceeding 600,000 sets. The company is equipped with over 200 advanced machine tools and has established a comprehensive quality assurance system and flexible production lines. It holds a complete range of certifications, having passed numerous top-tier international certifications including DNV ISO 9001/14001/45001, ISO 15848, TA-LUFT, CE/PED, SIL, TS A1, and API Q1/602/6D. Products strictly adhere to various standards including ANSI, JIS, DIN, and GB, with a wide range of specifications. Nominal diameters range from 3/8 inch to 48 inches, pressure ratings reach up to 2500 psi, and temperature ranges span from -196°C to 815°C. Materials available include carbon steel, stainless steel, alloy steel, Monel, and Hastelloy, among dozens of other options. The products are widely used in domestic and international markets and exported to Europe, the Americas, Southeast Asia, the Middle East, and other regions, primarily covering gate valves, globe valves, ball valves, butterfly valves, cryogenic valves, and high-temperature valves.
