Malleable cast iron galvanized · Suitable for drinking water installation, heating and compressed air · The screw connections are approved for drinking water up to 25 °C · Suitable for steel pipes according to DIN EN 10255 · Max. Operating pressure: Water 16 bar , Compressed air 12,5 bar · Max. Temperature range is 80 ° C · DVGW tested according to worksheet W534 · 3/4" ET