Aflex Bellows Assemblies

Aflex (Formerly Axial Dynamics) manufactures a wide range of bellows assemblies or expansion joints, at our manufacturing facility in Sydney, NSW. All of our bellows are manufactured right here in Australia, and we are proud to be Australia’s premier metal bellows manufacturer. We’ve listed some of our main assembly types below, however you may also want to check out our gallery page, as it has some great photos of our most recently manufactured items.

We take great pride in manufacturing high quality products, and our industry leading quality assurance and management system is fundamental to our manufacturing environment. In fact, Aflex is the first bellows company in Australia to be successfully accredited to the latest version of the ISO-9001 quality standard, ISO-9001:2015, which replaces the soon to be obsolete ISO-9001:2008.

SEB - Single Expansion Bellows

A basic, unrestrained expansion bellows. This assembly type allows some flexibility in all directions.

  • Applications: Air ducts, exhaust pipes, any application where thrust is restrained by the pipeline
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1350nb

UEB - Universal Expansion Bellows

An unrestrained ‘double bellows’ assembly, that allows lots of flexibility all directions.

  • Applications: Air ducts, exhaust pipes, any application where thrust is restrained by the pipeline
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1350nb

UEB3 - Triple Expansion Bellows

A highly flexible bellows assembly allowing extremely large offsets for low pressure applications.

  • Applications: Air ducts, exhaust pipes, any application where thrust is restrained by the pipeline
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1350nb

TEB - Tied Expansion Bellows

A basic restrained expansion bellows allowing some lateral flexibility along with axial flexibility in compression only.

  • Applications: Pump connections, water pipes, steam pipes
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1200nb

TUEB - Tied Universal Expansion Bellows

A restrained, universal bellows assembly, allowing lots of lateral flexibility.

  • Applications: Steam, process and water pipes
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1200nb

HEB - Hinged Expansion Bellows

A fully restrained single expansion bellows assembly, allowing only angular flexibility on a single plane. Used as part of an engineered pipeline movement solution.

  • Applications: All types of high pressure piping
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1200nb

DHEB - Double Hinged Expansion Bellows

A fully restrained double bellows assembly, allowing only lateral flexibility in a single plane. Used as part of an engineered pipeline movement solution.

  • Applications: All types of high pressure piping
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1200nb

GEB - Gimbal Expansion Bellows

A fully restrained single expansion bellows assembly, allowing only angular flexibility on two planes simultaneously. Used as part of an engineered pipeline movement solution.

  • Applications: All types of high pressure piping
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1000nb

DGEB - Double Gimbal Expansion Bellows

A fully restrained double bellows assembly, allowing only lateral flexibility in a two planes simultaneously. Used as part of an engineered pipeline movement solution.

  • Applications: All types of high pressure piping
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-1000nb

XB - Externally Pressurised Bellows Assembly

A semi restrained bellows assembly, allowing large axial flexibility (no lateral or angular flexibility).

  • Applications: All types of piping where thrust forces are restrained
  • Materials: Austenitic Stainless Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-700nb

DXB - Double Externally Pressurised Bellows Assembly

A semi restrained 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 Steels, 600 and 800 Series Nickel Alloys, Hastalloy C-276, Nickel 200 and 201
  • Nominal Pipe Size Range: 40-700nb