• Hangzhou Haiwo Fluid Control Equipment Co., Ltd. – Formerly Fuyang Paiwo Valve, specialized in automatic control valves including pneumatic/electric control valves, CV3000 series, self-operated pressure/temperature regulators, and bellows-sealed control valves. Applications in paper, chemical, petrochemical, power, metallurgy, environmental industries. Offers special working condition custom solutions. Website: [Contact via industry channels] -1

  • Yongjia Yuliu Intelligent Control Equipment – Located in Yongjia County's "Valve Town," specialized control valve manufacturer producing CV3000 series, pneumatic/electric control valves, O/V type ball valves, self-operated pressure/temperature regulators, control butterfly valves, and diaphragm valves. Serves power, metallurgy, food, petrochemical, paper, chemical, light industry, medicine, urban heating industries. Website: [Contact via industry channels] -9

  • Beijing Tianzhu Valve Factory – Founded 1976, formerly Beijing Butterfly Valve Factory, pioneer in domestic high-performance butterfly valves and control valves. 10,000 m² facility, 206 employees. Products designed with CAD/CIMS, manufactured with CNC machining centers. Pressure ratings 0.6-10MPa, conforming to GB, ANSI, API, BS, DIN, ISO standards. ISO9001, ISO14001, ISO18000, TS certified. Website: [Contact via industry channels] -4

  • Anhui Tongdu Fluid Technology – Established 1993, listed company (stock code 832250). Offers piston-type flow control valves, energy-saving pump control valves, and various automatic control valves for water and industrial applications. Website: [Contact via industry channels] -7

  • Suzhou Neway Valve Co., Ltd. – Leading Chinese valve manufacturer offering control valves for oil & gas, petrochemical, power generation, and LNG applications. API certified with global project experience. Website: https://www.newayvalve.com

  • Shanghai Valve Factory Co., Ltd. (SVF) – Century-old manufacturer offering control valves and regulating valves for nuclear energy, oil & gas, and chemical processing. Pressure ratings 150-4000 lb. Website: https://www.svf.sh.cn

  • Tanggong Valve Group – Offers control valves with pneumatic and electric actuators, various trim options. Materials from carbon steel to exotic alloys. Pressures 0.1-42 MPa, temperatures -196°C to 730°C. Website: https://www.tanggongvalve.com

  • SUFA Technology – High-tech enterprise under CNNC, offering control valves for nuclear power and petrochemical applications. Specializes in high-pressure and low-temperature valves. Website: http://www.sufavalve.com

  • Chaoda Valve Group Co., Ltd. – Offers control valves and regulating valves with various actuator options. Certified ISO 9001, API 6D, CE/PED. Website: https://www.chaodavalve.com

  • DERVOS VALVE – Offers control valves in carbon steel, stainless steel, and alloy steel with pneumatic or electric actuation. API6D, CE, ISO9001 certified. Website: https://www.dvsvalve.com