OST VALVE.Founded in 1997 and headquartered in Wenzhou, Zhejiang, OST VALVE is a professional manufacturer of control valves with nearly three decades of experience. The company’s headquarters and branch factories cover a total area of over 33,000 square meters, demonstrating substantial production capacity. As an industry-authorized enterprise, it has obtained a series of certifications, including the National TS Special Equipment Certification, ISO 9001 Quality Management System, API 607 Fire-Resistant Certification, and Occupational Health, Safety, and Environmental Management certifications. Products strictly adhere to international and domestic standards such as ISO, API, DIN, BS, and GB, and are manufactured using a variety of high-end alloy materials including WCB, LCB, CF8/CF8M, duplex stainless steel, Monel, and Inconel. The main product lines include telescopic plug valves, double-seal guide rail valves, double-disc gate valves, rail-mounted ball valves, high-temperature coking ball valves, valves specifically designed for the coal chemical industry, and various high-temperature, high-pressure control valves and actuators. These products feature advanced technology and are specifically designed for harsh operating conditions.
