These butterfly valves are approved for oxygen service
A special version of the R480 Victoria butterfly valve series (photo) is approved for use with O2. In the design for handling O2, all media wetted seal materials and auxiliary materials (lubricants and screw locking agents) from the Victoria butterfly valve series have been tested and approved by the German Federal Institute for Materials Research and Testing (BAM). The examination for BAM approval was based on the DIN EN 1797 and ISO 21010 standard. Approval is limited to the use of gaseous O2 at a maximum operating temperature of 60°C and a pressure of 15 bars. — GEMÜ Gebrüder Müller Apparatebau GmbH & Co. KG, Ingelfingen-Criesbach, Germany