We are the leading manufacturer of all types of bellows and expansion joints, ranging from metallic bellows to fabric expansion joints for Steel Plants
An expansion joint or movement jointis an assembly designed to safely absorb the heat-induced expansionand contraction of construction materials, to absorb vibration, to hold parts together, or to allow movement due to ground settlement
Expansion joints are used in piping systems to absorb thermal expansion or terminal movement where the use of expansion loops is undesirable or impractical. Expansion joints are available in many different shapes and materials.
In Steel Plants Metallic Expansion Joints are installed in pipe work and duct systems to prevent damage caused by thermal growth, vibration, pressure thrust and other mechanical forces. There is a wide range of metallic bellows designs in a variety of materials. Options range from the simplest convoluted bellows used in petroleum refineries. Materials include all types of stainless steels and high grade nickel alloy steels.
Any pipe connecting two points is subjected to numerous types of action which result in stresses on the pipe. Some of the causes of these stresses are:
internal or external pressure at working temperatureweight of the pipe it self and the parts supported on itmovement imposed on pipe sections by external restraintsthermal expansion