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DN Diameters upon request
PRESSURE --
TEMPERATURE -200°C ÷ 800°C.

Volume Expansion Joint

CHARACTERISTICS:
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:
Materials according to Customer’s specifications

 

CONSTRUCTION:
– 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.

 

TESTING:
– Helium leak test (standard).
– Specific dimensional controls, non-destructive tests, material certificates of main pressure bearing parts (on request).

 

FITTINGS:
According to Customer’s specifications

USE:
Volume compensation of dielectric oil in transformers and insulators

 

APPLICATIONS:
Transformers

 

TEMPERATURE:
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.

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