The TTV 20W3040 Actuated Wafer Pattern Butterfly Valve is a Rilsan Coated Ductile Iron Bodied Valve with a CF8M Stainless Steel Disc & 304 Stainless Steel Shaft. A one piece body concentric design features four entering lugs which allows for easy installation between two flanges at intermediate points within the process pipeline. Suitable for General Purpose applications for a range of industries the 20W3040 is both economical and versatile.