This standard BS EN 4020:2009 Aerospace series. Pipe coupling 8°30' in titanium alloy. Elbows 90°, welded end with thrust wire nut is classified in these ICS categories:
49.080 Aerospace fluid systems and components
This standard specifies the characteristics of elbows 90°, welded end, with thrust wire nut, for pipe couplings 8°30', in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: -55 °C to 135 °C
