Piping Expansion Joints

To begin with there are three main types of pipe expansion joints. They are also known as piping expansion joints metalrubber, and fabric. An bellows joint is installed in a pipe system for a couple of reasons. Firstly expansion joints can absorb vibrations and shock. Secondly, you should use bellow joints to relieve anchor stress, reduce noise, and compensate for misalignment. Additionally, certain expansion joints are designed for thermal expansion in very hot applications. Next expansion joints are necessary in systems that convey high temperature. Substances such as steam or exhaust gases, causes movement and vibration.

Pipe expansion joints are made of metal, fabric, or an elastomer (rubber). Furthermore, depending on your application, you will determine if you need a metallic expansion joint, rubber expansion joint, and a fabric expansion joint.

Pipe expansion joints are also designed for other criteria, such as noise absorption, anti vibration, earthquake movement, and building settlement. Expansion joints are also known as “compensators”, as they compensate for the thermal movement. Compensators are also known as metallic expansion bellows, or non metallic expansion bellows.

Bellows, Cover, Liners, End Fittings, Limit Rods

To begin with, pipe expansion joints consist of different components, bellows, liners, cover, end fittings, and limit rods. Formerly people often confuse an expansion joint with a bellow. Also they think the names can be used as one in the same, this is not true. Furthermore, an expansion joint consists of all the components. However, a bellow is just one of the components of the pipe expansion joint. For example, the bellow is the body of the expansion joint. Bellows can have convolutions. Also bellows can be made out of different materials. They are the flexible unit on the metallic expansion joint. In addition to bellows are liners.

Liners protect the inside of the piping expansion joint from erosion. When high flow of air, fluids, steam flows across the inside of a bellow, it can cause it to not work. In fact liners can prevent this problem. Also liners can reduce turbulence. Furthermore, outside covers are used to protect the bellow from being damaged. In addition to, they can insulate the bellow.

Also piping expansion joints can use flanges or butt-weld ends. Moreover, limits rods are used in an expansion joint design to limit the axial compression or expansion. Furthermore, limit rods allow the piping joints to move over a range. In addition, nut stops are placed along the rods. Also limit rods are used to prevent bellows over-extension while restraining the full pressure thrust of the system.

Expansion Joints for Pipes

In this paragraph, I’m going to discuss why piping expansion joints are used for pipes. Firstly, misalignment happens in a pipe system. Secondly thermal expansion happens in a pipe system. Therefore, when the pipe heats and cools it can expand and contract. Pipe bellow joints are also known as compensators, because they compensate for the thermal movement. In addition, there are different types of expansion joints for pipe, for example, pipe bellows, and bellow pump connectors.

Expansion Joints for Steam

Steam can be very hot. Thus causes a lot of movement in pipe. Therefore, you will need an expansion joint for steam. Be sure you pick the right expansion joint. Moreover, when asking for a RFQ it helps to have the following information. Firstly you need size. Secondly you need temperature. Next you will need the application. Then you need to know the material. Lastly you’ll need to know the pressure.

Rubber Expansion Joints
Fabric Expansion Joint
Metal Expansion Joint