Expansion joint are low cost vibration and deflection absorption components in fluid conveyance pipelines.
Bellows consists of two symmetrical connecting ends, either threaded unions for smaller nominal bores or flanged ends for larger nominal bore pipelines.
Body of bellows is essentially robust rubber cylinder that is capable of absorbing vibration and movement in pipeline components
Bellows are often installed in line with water pumps as absorber of operating vibration of pump and movements due to pump start-up and shutdown.
Bellows are also able to absorb axial displacement due to pipeline expansion and contraction and lateral displacement and pipeline angularity.
1.Available range: from DN20-DN1000mm
2.Materials of construction:
3.Flange: steel to SABS 1431 grade 300WA
4.Flange coating: galvanized
5. Rubber seal: EPDM or NBR