Universal Expansion joints

CHARACTERISTICS:
Excellent reliability, no ageing, absence of permeability, resistant to corrosion, high working temperature.
In conformity with EJMA (Expansion Joint Manufacturer Association) Standards, movements are calculated for 3000 complete cycles at nominal pressure.

MATERIALS:
Bellows in stainless steel 1.4541 EN10028-7 (AISI 321).
Flanges and weld end in carbon steel.
On request, other grades of stainless steel.

CONSTRUCTION:

• Single or multi-ply metal corrugated bellows
• Ends: flanges

The corrugations are formed by a PLC controlled automatic process. The special forming process, free from friction and lamination, allows constancy and accuracy of the corrugation profile with minimal material yielding.

TESTING:

• Pneumatic leak test (standard)
• Hydraulic test, specific dimensional controls, non-destructive tests, material certificates of main pressure bearing parts (on request)

FITTINGS:
Flanges conforming to with EN1092-1 or ANSI B16.5.
Special flanges upon request.