the following are the list of top check valves manufacturers :

1. DVD Valves in turkey
2. galassi & ortolani srl in Italy
3. Chemtech Industrial Valves Ltd in India
4. Fangyuan Valve Group Co. Ltd in china
5. Jinliang Valve Co. Ltd in china
6. Zhejiang Tehorn Valve Co. Ltd in China
7. arflu industrial valves in spain
8. Sanco Valves Pvt. Ltd in India
9. AMCO INDUSTRIAL VALVES in India
10. asteknik makina in Turkey
11. Wenzhou Xindeli Valve Co. Ltd in china
12. Flowjet VALVES in india
13. DALSONS VALVES in india
14. Zhejiang Wod Valve Co. Ltd in China
15. faf valve company in Turkey
16. vastas valves in Turkey
17. Zhejiang Jieyu Valve Co. Ltd in China
18. Zhejiang RST Valve Technology Co. Ltd in China
19. Wenzhou Yuzheng Valve Co. Ltd in China
20. ZHEJIANG WONSTON VALVE CO. LTD in China
21. Zhejiang BaoShiJia Valve Co. ltd in China
22. Zhejiang Jewelry Fluid Valves Co. Ltd in China
23. ZHEJIANG WENBAO VALVE CO. LTD in China
24. Zhejiang Ouming Fluid Casting Industry Co. Ltd in China
25. Zhejiang Naibang Valve CO. LTD in China
26. ZHEJIANG COTECH VALVE CO. LTD in China
27. WENZHOU AEA VALVE CO. LTD in China
28. TAIZHOU XINGNUO TECHNOLOGY CO. LTD in China
29. hawa valves india pvt ltd in india
30. VIP Valves (India) Pvt. Ltd.

Check valve is to rely on the flow of the media itself and automatically open and close the valve flap, its main role is to prevent the media back, to prevent the pump and drive motor reversal, and the release of container media.