1. Yongjia Yuliu Intelligent Control Equipment – Located in Yongjia County's "Valve Town," offers diaphragm valves and corrosion-resistant control valves for chemical, pharmaceutical, and food industries. Specializes in sanitary and sterile diaphragm valve designs. Website: [Contact via industry channels] -9

  2. Beijing Tuoyun Technology (TCT Brand) – Professional fluid system solutions provider offering diaphragm valves for biopharma and semiconductor applications. Stainless steel construction with PTFE diaphragms, full traceability. Website: [Contact via industry channels] -6

  3. Suzhou Neway Valve Co., Ltd. – Leading Chinese valve manufacturer offering diaphragm valves for critical applications in pharmaceutical and biotech industries. API certified. Website: https://www.newayvalve.com

  4. Tanggong Valve Group – Offers diaphragm valves with various lining materials including PTFE, rubber, and stainless steel. Pressures up to 42 MPa. Website: https://www.tanggongvalve.com

  5. Shanghai Valve Factory Co., Ltd. (SVF) – Century-old manufacturer offering diaphragm valves for nuclear energy, chemical, and pharmaceutical applications. Website: https://www.svf.sh.cn

  6. Anhui Tongdu Fluid Technology – Established 1993, offers diaphragm valves and fluid control systems for water treatment and industrial applications. Website: [Contact via industry channels] -7

  7. DERVOS VALVE – Offers diaphragm valves in stainless steel and lined materials for corrosive service. CE, ISO9001 certified. Website: https://www.dvsvalve.com

  8. Chaoda Valve Group Co., Ltd. – Founded 1984, offers diaphragm valves for various industrial applications. Certified ISO 9001, API 6D, CE/PED. Website: https://www.chaodavalve.com

  9. Zhongcheng Valve Group – Established 1998, offers diaphragm valves and specialty valves for chemical and pharmaceutical industries. Certified ISO9001, CE, TS. Website: [Contact via industry channels] -2

  10. Ningbo Pntek Technology Co., Ltd. – Manufacturer of industrial valves including diaphragm valves for various applications. 90% on-time delivery. Website: [Contact via industry channels]