Volume Expansion Joint
Excellent reliability, no ageing, absence of permeability, resistant to corrosion, high working temperature.
Calculation of life cycles according to EJMA (Expansion Joint Manufacturer Association) Standards.
Materials according to Customer’s specifications
– Single-ply metal corrugated bellows
– Ends: according to Customer’s specifications
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.
– Helium leak test (standard).
– Specific dimensional controls, non-destructive tests, material certificates of main pressure bearing parts (on request).
According to Customer’s specifications
Volume compensation of dielectric oil in transformers and insulators
Stainless steel -200° ÷ 550°C
For a temperature range 50° ÷ 550°C performances (movements, working pressure, n° of cycles) must be reduced by applying the relevant coefficients (See document N205 Derating factors”).
For a temperature range higher than 550°C, please contact our Technical Department.