Ayvaz's highly flexible metal bellows expansion joints are designed to compensate for large axial displacements and are specifically designed for installation in district heating piping systems.

The axial force in the pipe is transmitted directly through the adjacent end faces of the pipe to protect the bellows from overload when the bellows is fully compressed.

Compensation displacement
Highly flexible compensator bellows ensure large axial displacement compensation. The compensator's cover, optional rails and rings provide high stability. The cover also compensates for misalignment in the pipe, which can occur if the pipe is slightly suspended in the compensator. But this should be avoided.

Advantages of district heating expansion joints
Compensate for large axial displacement
Protection pipeline
Easy to install and insulated
Preventing to reverse
Design

Structure
Corrugated pipe material: Stainless steel AISI 321 (optional 304, 316L, 316TI, 309)
Connection Type: End Welding
Connection material: Standard carbon steel St.37.2, materials can be customized according to customer requirements
Surface material: Standard carbon steel St.37.2, materials can be customized according to customer requirements

Working conditions
Working temperature: -80°C/+600°C
Working pressure: PN 16
Nominal diameter: DN 50 (2”) – DN1000 (40”)

Product Manual
Click here to download District Heating Expansion Section Brochure
Download Manual (PDF)