Axial Threaded Expansion Joints are specialised connectors designed to accommodate thermal expansion and vibration in piping systems. They are particularly tailored to absorb axial movements, which include both extension and compression along the longitudinal axis of the pipeline​1​. Hydraflex's variant of these joints are crafted to not only address thermal expansion and vibration concerns but also ensure smooth fluid flow through the system by minimising contact between the inner surface of the bellows and the fluid​

Construction and Compliance

The construction of Hydraflex’s Axial Threaded Expansion Joints is robust, featuring integrated liners that reduce friction losses and enable a smooth flow of fluid. The design ensures minimal contact between the fluid and the inner surface of the bellows​. Generally, Axial Threaded Expansion Joints from other manufacturers could be fabricated from stainless steel with steel ends to cater to different pressure ratings​. Additionally, Hydraflex's products are manufactured in Great Britain, highlighting a standard of quality and compliance with local manufacturing standards.

Applications

These expansion joints find their application in a plethora of settings where thermal expansion and vibration are concerns. They are suitable for use in straight pipeline sections between two fixed points, where their compact build facilitates the absorption of thermal expansion with a relatively minimal built-in length​.

Benefits and Features

The primary benefits of employing Hydraflex’s Axial Threaded Expansion Joints include the effective absorption of thermal expansion and vibration, which, in turn, contributes to the longevity and operational efficiency of the piping system. The integrated liners in the design significantly reduce friction losses, which is beneficial for maintaining a smooth fluid flow​. The variety of end connections available, such as threaded males and females, fixed and swivel flanges, cam fittings, and adaptors, provide flexibility and ease of installation in different systems.

Availability and Customisation

Hydraflex offers both stock and made-to-measure metallic hose assemblies, implying a level of customisation to meet specific requirements. A wide range of end connections is available to cater to various installation needs, showcasing the flexibility in product offerings by Hydraflex​.

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