Welcome to Tianjin Donglian Valve Factory. Tianjin Donglian Valve Factory was established in 1987, covering 21, 000 square meters. We specialize in manufacturing various kinds of valves, such as butterfly valves, flanged butterfly valves, metal butterfly valves, check valves, gate valves, waterpower control-valves, micro-resistance slow close check valves, multi-function pump control valves and some other industrial vales. Our products are strictly according to international standards such as AISI, DIN, API, JIS, ASTM, ASME, GB, and BS. All our industrial valves are in a variety of sizes, pressure classes and materials. To satisfy clients better, we continue to meet and exceed the quality standards required in process industry & Water industry, chemicals, petrochemical, Food and Beverage, Water treatment plants, Filtration & Desalination plants etc. We have attained ISO9001:2008 Certification, 97/23/EC certification (issued by LLOYD Register Quality Assurance) and CE Certification. The strict quality control is also implemented by all our suppliers through continuous verification of materials and parts. Our engineers are always engaged in improving the existing products and designing new models to meet customers&＃039; requirements. New designs are made in line with the same methodology and are tested under actual pressure conditions in our lab. In addition, our products are subjected to cyclic operation under pressure to determine life expectancy. We are dedicated to the design, manufacture and service of flow control products that effectively meet our customers&＃039; requirements. OEM service is also available. Customers�¢ï¿½ï¿½ satisfaction is our biggest happiness, which is our faith for our factory development. We are looking forward to the long term co-operation with extensive customers around the world. Warm welcome you again to visit our factory.