Pratt® Knife Gate Valves available at Duncan Company

Pratt Knife Gate and Slide Gate valves have been produced since 1995.  Pratt specializes in custom knife gate valves from 2″ to 96″ and above, utilizing carbon steel to stainless steels and other weldable alloys.  With many years of combined experience in...

Stream-Flo products now available at Duncan Company

Stream-Flo wellheads, gate valves, check valves and valve automation and control are proven around the world in the most demanding operating environments. Stream-Flo’s wellhead systems provide solutions for surface production and injection applications, and are...