armacon Valves trieccentric butterfly valve full free bore in valve's open position - minimum pressure loss pigging of pipeline PN 10 ... 400 DN 25 ... 4000 Class 75 ... 250 Size 1" ... 160" Ductile cast iron Carbon steel, Stainless steel Imprint For the video, you need the Adobe Flash Player. It is available as a free program on the Internet.