This standard specifies the dimensions of the dynamic beam seal end for elbows, tees and crosses for pipecouplings 8030', nominal pressure up to 28 000 kPa, for aerospace applications.
EN 3273:2001 history
2001EN 3273:2001 Aerospace series - Pipe coupling 8°30′ - Dynamic beam seal end for elbows, tees and crosses; Geometric configuration