This standard BS EN 3691:2001 Aerospace series. Pipe coupling 8°30' in titanium alloy. Unions, bulkhead, long welded is classified in these ICS categories:
49.080 Aerospace fluid systems and components
This standard specifies the characteristics of unions, bulkhead, long, welded end 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