Haiduntezhong Valve Co., Ltd.

Zhejiang Haidun Special Valve Co., Ltd., based in Wenzhou, Zhejiang Province in China's pump and valve capital, was founded in 1999 as a specialist fluid-control valve manufacturer integrating R&D, production, sales, and service. With registered capital of RMB 51.68 million and more than 100 employees, the company focuses on V-port ball valves, knife gate valves, floating and trunnion ball valves, eccentric half-ball valves, three-way ball valves, resilient and triple-offset butterfly valves, and pneumatic actuators including ZS, AT, and AW cylinders.

Drawing on more than a decade in the paper-industry valve sector, Haidun has produced over 200,000 valves for more than 2,000 customers at home and abroad. Products are certified under ISO 9001, China's TS special equipment licence, and CE, supported by in-house testing with spectrometers, hardness testers, and pressure test rigs. Applications span pulp and paper, wastewater treatment, mining, fine chemicals, and thermal power.