International designer and manufacturer of customised expansion joints

We manufacture all kinds of circular expanson joints.

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They can be:

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• axial

• universal

• hinged

• gimbal

• tie-rods

• pressure balanced

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Our expansion joints are manufactured using different materials:

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• stainless steel

• nickel alloys

• aluminium

• duplex ...

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They are equipped with single or multi-layer bellows. 

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They are manufactured in compliance with the regulations and welding requirements.

The range of our products varies between:

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• ND 50 mm and ND 5000 mm 

• thickness from 0.3 mm to 5 mm   

• operating temperature between -200°C and +1200°C

• operating pressure from vacuum to more than 100 Bar.

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Our engineering department designs your expansion joints based on your requirements, in accordance with the calculation codes.

SFZ designs and creates your projects while maintaining a meticulous control:

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• of the production

• of the traceability

Our expertise is recognised by the major international notified bodies:

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• LR 

• DNV-GL

• Rina

• ABS

• TÜV 

• BV

Experimental nuclear reactor 

in France

Single-layer bellows made of 304L, with circular welding.

District heating

 in France

ND 950 expansion joint -

5510 mm in length.

Refinery 

in Qatar

ND 2500 expansion joint with outer insulating cover.