The AK210W is a concentric butterfly valve that is designed for drinking water applications. The body is made of epoxy-coated GGG40, the disc is made of stainless steel 1.4408 (CF8M), and the seat ring is made of EPDM. This butterfly valve is certified according to DVGW potable water. The butterfly valves of the 2A ARMAGO Armaturen GmbH are very easy to automate due to the standard top-mounting flange (ISO5211), which we do completely in-house. The AK210W is also deliverable as a lug type, it is called AK211W.