1. Jiangsu Puyuan Chemical Equipment Co., Ltd. – Specializes in flame arresters, breather valves, and emergency relief valves. Produces Zhq-II series pipeline flame arresters for DN25-500, carbon steel/304/316L construction. Available in IIA/IIB/IIC explosion-proof levels, working pressure up to 42.0Mpa. Compliant with GB13347 and ISO16852 standards. Website: http://www.puyuanchem.com -8

  2. Shanghai Datong Valve – Leading flame arrester manufacturer. Website: http://www.datongvalve.com

  3. Wenzhou Longwan Flame Arrester – Specializes in pipeline flame arresters. Website: http://www.longwanflame.com

  4. Zhejiang Fangyuan Valve – Produces flame arresters for petrochemical industry. Website: http://www.fangyuanvalve.com

  5. Jiangsu Suli Flame Arrester – Manufacturer of detonation flame arresters. Website: http://www.suliflame.com

  6. Hebei Tongda Valve – Specializes in tank flame arresters. Website: http://www.tongdavalve.com

  7. Shandong Huayu Flame Arrester – Produces pipeline safety equipment. Website: http://www.huayuflame.com

  8. Tianjin Tanggu Valve – Manufacturer of flame arresters for oil and gas. Website: http://www.tangguvalve.com

  9. Shanghai Liangong Valve – Specializes in flame arrester valves. Website: http://www.lianggongvalve.com

  10. Jiangsu Shentong Valve – Produces flame arresters for chemical industry. Website: http://www.shentongvalve.com