KOSEN Valve Co., Ltd. (https://www.kosenvalve.com/) is a dedicated valve manufacturer specializing in the design, development, testing, production, sales, and servicing of industrial valves. Based in Oubei, Zhejiang—recognized as a leading valve manufacturing hub in China—our company spans 6,000 square meters and is equipped with advanced machining and production equipment sourced globally. We offer a comprehensive portfolio of industrial valves, including ball, gate, globe, check, plug, and butterfly valves, as well as pipe strainers. These products are available in a wide range of materials, such as carbon steel, stainless steel, Cr-Mo steel, cryogenic steel, Hastelloy C, Monel, duplex steel, and high-nickel alloys, to meet diverse application needs.

Our valves cover sizes from 1/2 inch to 40 inches and pressure classes from 150 LB to 2500 LB, with temperature ratings ranging from -196°C to 570°C. All products are designed and manufactured in strict accordance with a wide array of international and national standards, including Chinese, American, Russian, German, British, and Japanese specifications. This adherence to global standards ensures compatibility, performance, and reliability in both domestic and international markets.

KOSEN valves are widely used across numerous industries, including petroleum, chemical processing, electric power, natural gas, coal chemical, aerospace, metallurgy, and pulp and paper. Our focus on quality, innovation, and customer-centric service has established KOSEN as a trusted brand in the industrial valve sector. We remain committed to providing high-performance solutions tailored to the challenging demands of modern industrial environments.