Single Type Expansion Joint
Product Overview
SINGLE TYPE EXPANSION JOINT
The single pipe expansion joint is simply a bellows element with end connections. Regardless of accessories, it will deflect in any direction or plane that the bellows will. It requires that the piping be controlled as to the direction of the movements required of the unit. Our simplest form of expansion joints do not restrain the internal pressure thrust. The piping designer must provide the system with separate anchoring and guiding to resist the pressure thrust.
- Single Unrestrained Expansion Joint
- Single Tied Expansion Joint
Single Unrestrained Expansion Joints
Made of a single bellows element with end connections, this Dewdon model incorporates all movements in one length of pipe but is mainly used to absorb axial motions.
This expansion joint is the simplest one available and comes with one bellows section and end connections. This type of expansion joint requires the most control of the adjacent piping in regards to anchors and guiding.
Our tied expansion joints are designed to have a fixed overall length. The tie rods are attached in a way that eliminates axial movement and forces the ends of the EJ to remain parallel at all times. This configuration allows for only two degrees of freedom, lateral in two axes.
Features
⦁ Simplest, most economical metallic joint⦁ It consists of single bellows welded to end fittings, either flange or pipe ends.
⦁ It combines axial, lateral, and angular movements.
⦁ Deflects in any direction
Single Tied Expansion Joint Assemblies
Our tied axial expansion joints consist of a single bellows element with end connections and a tie rod system.
This expansion joint is exactly like the single unrestrained expansion joint but it is provided with tie rods. When adding tie rods to the expansion joint it stops the bellows from overextending. The tie rods act as limit rods and has stops set to allow axial movement to a specifically designed movement.
Features
- Similar to the unrestrained expansion joint but with the addition of tie rods.
- Lateral/angular movements
- Restricted to one direction.
- Being highly versatile in all industries
- Having two degrees of movement for single-tied designs
- Having three degrees of movement for universal-tied designs
- Implementing tie rods in your expansion joints can create greater flexibility and enhance your industry’s bellows application.
