1. Suzhou Neway Valve Co., Ltd. – Leading manufacturer of check valves for oil & gas, petrochemical, and power generation industries. Full range of swing check, lift check, and wafer check valves. API certified with global project experience. Website: https://www.newayvalve.com -8

  2. Tanggong Valve Group – Offers comprehensive check valve range including swing check, lift check, and wafer check valves. Materials: WCB, CF8, CF8M, stainless steel. Pressures up to 42 MPa, diameters DN6-4000mm. Exports to 20+ countries. Website: https://www.tanggongvalve.com -8

  3. Shanghai Valve Factory Co., Ltd. (SVF) – Century-old manufacturer offering check valves for nuclear energy, oil & gas, and chemical processing. Pressure ratings 150-4000 lb, temperatures -196°C to +750°C. Website: https://www.svf.sh.cn -8

  4. DERVOS VALVE – Offers check valves in various materials including carbon steel, stainless steel, alloy steel, and duplex stainless steel. API6D, CE, ISO9001 certified. Supports orders from single unit. Website: https://www.dvsvalve.com -10

  5. Chaoda Valve Group Co., Ltd. – Manufacturer of check valves including swing check, lift check, and wafer check designs. Certified ISO 9001, API 6D, CE/PED. Exports to Europe, Americas, Asia-Pacific. Website: https://www.chaodavalve.com -8

  6. Jiangsu Shentong Valve Co., Ltd. – Produces check valves for metallurgy, nuclear power, thermal power, and petrochemical industries. Metallurgical valves hold 70%+ domestic market share. Website: http://www.stvalve.com -8

  7. Zhejiang Leadtek Fluid Technology Co., Ltd. – Offers pipe fittings and valve products including check valves. 75% on-time delivery, 66% reorder rate. Website: [Contact via industry channels] -6

  8. Ningbo Pntek Technology Co., Ltd. – Manufacturer of ball valves, gate valves, and check valves. 90% on-time delivery, online revenue US$220,000+. Website: [Contact via industry channels] -6

  9. Guangdong Dkv Valve Co., Limited – Offers electric control valves and specialty valves including check valve configurations. 100% on-time delivery. Website: [Contact via industry channels] -6

  10. VALTECCN Valve – Formerly Tianjin TKT Valtec, offers check valves from 1" to 60" in various standards (ISO, API, ANSI, BS, JIS). Serves power, petrochemical, water treatment, shipbuilding across 30+ countries. Website: [Contact via industry channels]