Flowserve Durco

Durco is recognized as an innovative flow control brand with a comprehensive portfolio of valve products consisting of plug, butterfly and ball valves designed to handle the most difficult and demanding applications.

Founded under the name Duriron in 1912, the company originated as a foundry, and developed a high silicon cast iron alloy. Given the same name, Duriron, this material rapidly gained a reputation for handling extremely corrosive substances.

Durco has continued that tradition and made a number of significant product developments for the chemical industry, including the first use of PTFE (Teflon) as a sealing material in a patented, special alloy, non-lubricated plug valve.