The GS-Piping System consists of two flange systems - the flare flange and retain ring systems - which allow systems with working pressures from 10 to 690 bar and pipe diameters between 16 and 600 mm to be assembled without welding. The Retian Ring and 37 degree Flare Flange systems are used for high pressure connections and the 90 degree Flare Flange connection for low pressure applications.