• Compensatori PTFE Copertina
    Steel Line

BELLOWS COLORS

 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