Botou Tongyong Bellows Manufacturing Co. Ltd

    What are custom expansion joints? Metallic expansion joints are elastic vessels, which are compressible under pressure or extensible under a vacuum. The release of the vacuum or pressure causes the metallic bellow to return to its original shape if the bellow’s material doesn’t get stressed beyond the yield strength. There are four basic metallic expansion joints, which are categorized based on the manufacturing technology used.   1. Machined Bellows Machined bellows are ground or turned from forged rings, tubing, and bar stock of materials used to make other kinds of metal bellows. Low modulus, high-strength titanium alloys and heat-treatable, high endurance, and high-strength steel are often used to make machined bellows. Machined bellows are custom bellows made to have a high spring rate to hold pressure as high as 82.73 MPa. Machined Bellows: What are bellows used for? These bellows find use in industrial applications that need a high spring rate and a high-pressure thrust.   2

    What are custom expansion joints? Metallic expansion joints are elastic vessels, which are compressible under pressure or extensible under a vacuum. The release of the vacuum or pressure causes the metallic bellow to return to its original shape if the bellow’s material doesn’t get stressed beyond the yield strength. There are four basic metallic expansion joints, which are categorized based on the manufacturing technology used.   1. Machined Bellows Machined bellows are ground or turned from forged rings, tubing, and bar stock of materials used to make other kinds of metal bellows. Low modulus, high-strength titanium alloys and heat-treatable, high endurance, and high-strength steel are often used to make machined bellows. Machined bellows are custom bellows made to have a high spring rate to hold pressure as high as 82.73 MPa. Machined Bellows: What are bellows used for? These bellows find use in industrial applications that need a high spring rate and a high-pressure thrust.  

Fabric expansion joints   consist of one or more layers of different properties, each performing a specific task. Some materials are designed to withstand temperature, others are designed to resist corrosion caused by process fluids, while others maintain pressure. The stacking and combination of different layers obtains a layering with properties suitable for specific project conditions. Thus, it is a very versatile component.   What are the uses of fabric expansion joints When properly inserted into a piping system, the  fabric expansion joint  deforms and adapts to changes in pipe dimensions caused by thermal expansion. It can also be used as a connecting element between the equipment and the piping to which it is connected to avoid potentially dangerous "rigid interfaces" to the equipment.

What is a fabric expansion joint A fabric expansion joint made of textile fibers is a flexible element. It belongs to the category of non-metallic expansion joints. Due to the specific composition of the individual layers, fabric expansion joints are not suitable for installation in pipelines carrying liquids. They are only suitable when the fluid is in the gaseous state. They can withstand extremely high temperatures, even over 1000°C. In contrast to metal and rubber expansion joints, fabric expansion joints are very flexible and their stiffness values are not important. Fabric expansion joints  consist of one or more layers of different properties, each performing a specific task. Some materials are designed to withstand temperature, others are designed to resist corrosion caused by process fluids, while others maintain pressure. The stacking and combination of different layers obtains a layering with properties suitable for specific project conditions. Thus, it is a very versatile