Durco.

Durco was founded as the Duriron Casting Company in 1912. The brand is known for its durable designs, ease of maintenance, proven reliability, wide array of features, and an extensive global support network.  

Durco’s innovative history sets the standard for ANSI chemical process pumps and robust plug valves, including the engineering and manufacturing of the world’s first Teflon® sleeve plug valve in the 1950s. Durco’s comprehensive portfolio of non-lubricated and lined plug valves is designed to handle the most corrosive and challenging chemical services where drop-tight shutoff is absolutely necessary.  

With a history of manufacturing valves in a wide range of specialized alloys, Durco of Cookeville TN, USA has focused on meeting the high demands of the Chemical and Petrochemical industry. Strong engineering, metallurgy and research have produced a broad range of diverse valves. 

In 1997, Durco merged with BWIP, creating Flowserve Corporation.