Hinged Expansion Joint

When there is only one plane of angular movement, hinges or angular expansion joints are used. An angular expansion occurs when an expansion joint bends about its centre, which is the midline and halfway between the ends of metal bellows.

These bellows are commonly utilised in scenes where the pipe direction changes. As a result, hinged joints are used in areas where pipe bending occurs. Because this bellow is hinged, only angular movement is permitted around the hinges. Because lateral movements occur, a piping joint exists between these two bellows.

A hinged expansion joint's ability to accommodate lateral deflection for a given angular movement is directly proportional to the distance between them. To properly employ a pair of hinged bellows, the space between them should be as large as feasible. When only two hinge joints are utilised, as indicated in the illustration, the pipe perpendicular to the hinge segment must deflect to absorb the thermal expansion of the spool containing these angular expansion joints.

A system with three hinged expansion joints may be employed when the pipework in a single plane system is not flexible enough to absorb the thermal expansion of the spool between the hinged joints. The combination of the three joints absorbs all of the heat expansion of the pipe system in this system, and no piping deflection is seen. This arrangement exerts the least amount of strain on the intermediate anchors and guides.

If thermal growth occurs in only one plane of the piping system, this joint provides the most efficient method for absorbing thermal deflections.


Have a question before you buy our products? Take a look at the FAQs below.
If you don’t find the answer you’re looking for, get in touch with us here.

  • Are Hinged Expansion Joints safe?

    Hinged Expansion Joints are extremely safe. They’re also very easy to install. At Freture Techno, we help you customise the specifications based on your needs. We also help with installation and after-sales service, which makes trusting Freture Tech-no and bellow couplings that much more easier for you.

  • Do I really need Hinged Expansion Joints?

    If you are in one of the following industries, Hinged Expansion Joints will enhance your productivity.

    • Manufacturing
    • Automobiles
    • Chemical and Nuclear Plant
    • Thermal Industry
    • Ships and boilers

    If you’re from another industry looking for more details about how you can benefit from using a Hinged Expansion Joints, please get in touch with us here for further discussion.

  • How do I know which valve is ideal for me?

    Get in touch with us here and an expert from Freture Techno will help you decide.

  • Why is Freture Techno the best place to buy Hinged Expansion Joints from?

    Most of the time our clients are local hence we are easily accessible

    Our products are manufactured & Tested as per international Std. & we offered only best quality product

    We will keep stock of Std. Product for last minute urgency

    We provide products only from reputed & highly reliable manufactured

    We have an experienced technical team who will be able to understand client’s exact requirements & accordingly we will offer solutions

Industries where Hinged Expansion Joint is Used

Chemical and Nuclear Plant
Thermal Industry
Ships and boilers

Applications of Hinged Expansion Joint

  • Used in chemical industry and power plants
  • Used to improve efficiency of machinery and extend their life
  • Used in the petrochemical industry and steel plants

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