Aflex Bellows Assemblies
Australia's premier metal bellows manufacturer
Aflex (formerly Axial Dynamics) manufactures a wide range of metal bellows assemblies and expansion joints at our facility in Sydney, NSW. All Expansion Joints/Bellows are manufactured in Australia.
Manufacturing gallery updated daily




Our Expansion Joint/Bellows Assembly Types
Complete Range of Assemblies
Single Expansion Bellows
A basic, unrestrained expansion bellows. Allows some flexibility in all directions.
- Applications
- Air ducts, exhaust, any application where thrust is restrained by the pipeline
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Universal Expansion Bellows
An unrestrained ‘double bellows’ assembly that allows lots of flexibility in all directions.
- Applications
- Air ducts, exhaust, any application where thrust is restrained by the pipeline
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Tied Expansion Bellows
A restrained expansion bellows allowing some lateral flexibility with axial flexibility in compression only. Can also be used for dismantling purposes.
- Applications
- Pump connections, water, steam
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Tied Universal Expansion Bellows
A restrained, universal bellows assembly allowing lots of lateral flexibility. Can also be used for dismantling purposes.
- Applications
- Steam, process and water
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Hinged Expansion Bellows
A fully restrained single bellows, allowing only angular flexibility on a single plane.
- Applications
- All types of high-pressure piping
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Double Hinged Expansion Bellows
A fully restrained double bellows, allowing only lateral flexibility in a single plane.
- Applications
- All types of high-pressure piping
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Gimbal Expansion Bellows
A fully restrained single bellows, allowing angular flexibility on two planes simultaneously.
- Applications
- All types of high-pressure piping
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Double Gimbal Expansion Bellows
A fully restrained double bellows, allowing lateral flexibility on two planes simultaneously.
- Applications
- All types of high-pressure piping
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Externally Pressurised Bellows Assembly
An unrestrained bellows assembly, allowing large axial flexibility (no lateral or angular flexibility).
- Applications
- All types of piping where thrust forces are restrained
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Double Externally Pressurised Bellows Assembly
An unrestrained bellows assembly, allowing extremely large axial flexibility (no lateral or angular flexibility).
- Applications
- All types of piping where thrust forces are restrained
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Pantograph Bellows Assembly
An unrestrained, multi-bellows assembly for great axial movement, evenly distributed across every element.
- Applications
- All types of piping. Common on bridges and drainage lines
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Gimbal Pantograph Bellows
A multi-element bellows assembly fitted with gimbal ends, allowing high axial and lateral flexibility while distributing the movement evenly over every bellows element.
- Applications
- All types of piping. Common on bridges and in buildings to accommodate seismic movement
- Materials
- Austenitic Stainless Steel (316SS & 321SS), 600 & 800 Series Nickel Alloys, Hastelloy C-276, Nickel 200
- Nominal Pipe Size
- 50–1400NB
Ready to discuss your next project?
Our engineering team is ready to help you design, specify and manufacture the right metal bellows assembly for your exact application.












