Type  63FL-DT in flanged design with metallic seat sealing for temperature up to +300°C have a directly acting and external medium operated type of control  and need compressed air from 6 to 8 bar for switching. They have a simple  and solid design and quick reaction times. High  quality valves, very suitable for large series plants thanks to their variable design. In order to avoid water hammer effects, just select the option "valve closes against the media" .