The bellows is the fundamental part of the expansion joint, and it is obtained by hydraulic or mechanic trial from stainless steel or alloy steel having only one longitudinal welding. A controlled behaviour produces a set of parallel metallic waves, that ensure maximum flexibility and reliability..
Our system of calculation furnishes the stressanalysis of the bellows, which allows to make calculations according to customer's specifications.
Expansion joint type | Connection material | Tie-rods material | Max temperature |
---|---|---|---|
Axial with flanges | Fe 410 B UNI 7746 Fe 42 B UNI 7070 Fe 44 B UNI 7070 |
343° C | |
Fe 410.1 KW UNI 5869 ASTM A 105 |
454°C | ||
Axial with welding ends | ASTM A 106 Gr.B | 454°C | |
Hinged and Gimbal | ASTM A 106 Gr.B | Fe 37 B UNI 7070 Fe 42 B UNI 7070 Fe 44 B UNI 7070 |
343°C |
Fe 410.1 KW UNI 5869 |
454°C |