Home > Products > Abrasion resistant pipe > Ceramic-Lined pipes & Elbows >

Expansion joints

Expansion joints are designed to safely absorb the movement in pipework systems due to heat-induced expansion and contraction of pipework.

Measurment
+ Sleeve Type Expansion Joints
Ceramic lined
+ Ceramic lined pipe expansion joints
Welding
Expansion joints with stainless steel bellows
Double flange with bolts& nuts
Connected with flange and bolt
Well packing
Well packing
Packing in steel casing
Packing in steel casing

Without them, pipes would not be able to withstand the forces exerted upon them and entire pipework systems would fail. When correctly selected and installed expansion joints act to prolong the service life of the pipework system and reduce the risk of downtime and for additional maintenance and repair.

How do they work?

Expansion joints - sometimes called expansion bellows, flexible joints or Expansion joint - are devices that comprise of a flexible element known as the bellows membrane that is fitted to end connections that are best suited to the pipework they are to be installed in.

What industries use expansion joints?

Expansion joints are used in all kinds of different sectors and in a huge range of different industrial contexts. Essentially, wherever there is a need to control pipework movement expansion joints are required.

What different varieties of expansion joints are there?
Well packing
Sunny Steel expansion joints come in a wide variety of designs.
Expansion joint accessories
Expansion joint accessories
Customer sketches
Expansion joint failure modes

Expansion joint failure can occur for various reasons, but experience shows that failures falls into several distinct categories.

补偿器选用技巧

补偿器采用矩形截面,圆角波形,管道中单个膨胀节承受二维方向位移。由2个膨胀节组成的肘接管道可承受三维方向位移。矩形圆角金属波纹膨胀节有全高、半高型、按照烟道尺寸,应力应变要求用户可多波节选用。

补偿器安装试压

波纹膨胀节与管道支座的安装方法详见下图,在安装过程中必须一致遵守。

Reliable research on Expansion joint

Compensator reliability is by the design, manufacture, installation and operation and management and other aspects of the composition. Reliability should also be considered from these aspects.

Pipe Expansion Joints

Pipe expansion joints are also known as compensators, as they 'compensate' for the thermal movement.

Ducted Air Systems

Expansion joints are required in large ducted air systems to allow fixed pieces of piping to be largely free of stress as thermal expansion occurs.

补偿器疲劳测试

疲劳寿命设计由波纹管补偿器的失效类型及原因分析可以看出,波纹管的平面稳定性、周向稳定性及耐腐蚀性能均与其位移量即疲劳寿命相关。过低的疲劳寿命将会导致波纹管稳定性及耐蚀性能下降。根据试验和使用经验,用于供热工程的波纹管疲劳寿命应不小于1000次。

Metallic Pipe Expansion Joints

Metal pipe expansion joints can withstand the design temperatures, pressures, as well as, provide the capacity necessary to absorb thermal growth of the piping system.

The thermal movement required can be axial, lateral or angular. In some cases, the pressure thrust of a pipe expansion joint must be restrained by the use of tie rods, hinges or gimbal while allowing the bellows to move through its design deflections.

Expansion joints with stainless steel bellows

Sunny Steel offers a wide range of expansion joints, suitable for numerous specific applications.

What Are Expansion Joints?

Expansion joints are devices containing a bellows membrane that are designed to absorb dimensional changes, such as those that occur due to thermal expansion or contraction of a pipeline, duct or vessel.



About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

Oline Customer Service : Chat with QQ Skype Me??

Contact us

Tech& Service