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RECTANGULAR EXPANSION JOINTS
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SQUARE EXPANSION JOINTS
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DUCT EXPANSION JOINTS
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Rectangular Expansion Joints
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Square Expansion Joints Sketch
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Rectangular expansion joints are manufactured to individual sizes and functional requirements by combining standard corrugated elements and corner configurations with self developed fabricating methods to be used as duct expansion joints.
Rectangular expansion joints are provided with either weldable duct ends or with fabricated angle flanges. These duct expansion joints are normally used in large size ducting with relatively low internal pressure.
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A) Bevel corner
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The most commonly used material for the bellows elements are austenitic stainless steels of different grades and carbon steel for the end connections. Material selection is mainly determined by the service conditions. We design and manufacture duct expansion joints confirming to the internally recognised E.J.M.A.( Expansion Joints Manufacturers Association)
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B) Double Mitre
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Rectangular duct expansion joints are normally supplied with any of the three corner configurations as illustrated below namely A> bevel corner, B> mitre corner, C> rounded corner.
We recommend the following illustrated dimensioning system for bolted fabricated flange configuration. Many times duct expansion joints are supplied with matching flanges to be welded to the other side of the duct which can be bolted with the flanges of the rectangular expansion joints easily.
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C) Rounded Corner
Different types of corners for duct expansion joints
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Dimensional Data for flanges of rectangular expansion joints
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Duct Expansion Joint with hinges for angular movements
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Duct Expansion Joint for Large ducting of power plant
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