Formats Video
Round Corner Metal Rectangular Expansion Joint (New)
December 18, 2014Metal rectangular expansion joints with round corners and U-profiles significantly out-perform any other corner style, as demonstrated by this video. The more flexible a bellows, the higher its fatigue life. This video is of interest to design and maintenance engineers. This is a video that is of interest to design and maintenance engineers. Length: 0.57
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Camera Corner Bellows
September 5, 2014Camera corner metal rectangular expansion joints have proven to be problematic for end users. The design requires considerable amounts of welding in the corners which are a stress riser during deflection. In addition the tight pitch of the profile more easily traps debris. This is a video that is of interest to design, piping, vessel
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Inspecting Metal Bellows Damage
August 1, 2014A metal bellows can be easily damaged if installers are not careful. The dents, arc strikes, and scratches are not always a cause for immediate panic. This is a video that is of interest to maintenance engineers, inspectors, pipefitters, and contractors. Length: 3:37
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Lugs on Pipe and Vessels *NEW*
November 30, 2015Load bearing lugs generate local bending stresses on thin walled shells such as pipe or vessels; these stresses can easily be reduced by optimizing the material arrangement. There are several methods for calculating the shell stresses which are covered in publications on the theory of plates and shells. This short video introduces visual concepts on
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Acid condensate on metal bellows expansion joint
May 26, 2014High temperature flue gas ducting often has metal bellows expansion joints that are internally insulation. Make sure the bellows remains above 400F to prevent acids from condensating and causing corrosion failures This is a video that is of interest to design and maintenance engineers. Length: 1.33 (Click image to launch video)
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Edge Welded Bellows *NEW*
September 5, 2014Edge welded metal bellows provide large movements with very low spring rates in round or rectangular ducting systems. This style is can be designed in short over all lengths. This is a video that is of interest to design and maintenance engineers. Length: 0.57 (Click image to launch video)
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Metal Rectangular Expansion Joints
August 1, 2014Are all metal rectangular expansion joints created equal? Not even close. Many after-market metal rectangles are made with a V-profile with a miter weld at the corners – these are flawed design features. The longest lasting designs have a U-profile with round corners. This is a video that is of interest to design and maintenance
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Expansion Joint Liners
August 1, 2014
Van Stone Flanges
August 1, 2014
EJMA verses ASME
August 1, 2014The EJMA design guide and the ASME code have different design criteria for metal bellows cycle life. The history of the ASME B31.3, Section VIII, and EJMA fatigue curves are discussed along with practical recommendations for expansion joint cycle life specifications. This is a video that is of interest to design, piping, and vessel engineers.
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Power Plant How a steam turbine cross over expansion joint works
January 13, 2018There is no excerpt because this is a protected post.
Read More Power Plant How a steam turbine cross over expansion joint works
September 4, 2015There is no excerpt because this is a protected post.
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Power Plant Steam Extraction Expansion Joints
October 31, 2014There is no excerpt because this is a protected post.
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Power Plant Coal Pulverizer Ducting Expansion Joints
January 13, 2018There is no excerpt because this is a protected post.
Read More Power Plant Steam Turbine Cross Over Expansion Joint
October 31, 2014There is no excerpt because this is a protected post.
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Power Plant 2-Ply Testable Bellows For Steam Turbines
January 13, 2018There is no excerpt because this is a protected post.
Read More Power Plant 2-Ply Testable Bellows For Steam Turbines
October 31, 2014There is no excerpt because this is a protected post.
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Why An Expansion Joint Works Part One
August 1, 2014How does a thin bellows hold the same pressure as that of a thicker pipe? The hoop stress pressure of a pipe is derived and then a comparison is made to how it is calculated for a metal bellows. This is the basis for the equation found in both the ASME code and the EJMA
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Why An Expansion Joint Works Part Two
August 1, 2014
Metal Expansion Joint Installation
August 1, 2014 Steam Extraction Expansion Joints
August 1, 2014There is no excerpt because this is a protected post.
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