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Categories - Frequently Asked Questions (FAQ)

Category Articles
What is axial deflection?
Added on Mon, Feb 7, 2011
Axial deflection refers to movement of the expansion joint in regards to changes in the dimensional length of the bellows parallel to the center line of the expansion joint. Axial Deflection   Read More
How do I decrease thrust force in an axial expansion joint?
Added on Wed, Jun 29, 2011
To decrease the thrust force in an axial expansion joint you must decrease the height of the bellows. However, this method will also increase the forces necessary to deflect the bellows. Expansion Joint Designed for 2" Axial Compression Read More
For a higher pressure system, how do you absorb pipe axial displacement without pressure thrust going to equipment with use of the expansion joint?
Added on Fri, Oct 19, 2012
By using an in-line pressure balanced expansion joint.   In-line Pressure Balanced Expansion Joint Read More
Can I use an axial expansion joint to absorb pipe expansion with gap inside tie rod nuts without passing thrust on the equipment?
Added on Thu, Nov 3, 2011
No, you cannot use an axial expansion joint because thrust force will be acting until the gap is closed between the tie rod nuts. When the nuts touch the lugs, the thrust force will not act upon the equipment. Read More
Can axial as well as lateral expansion be absorbed together in a single bellows design?
Added on Thu, Nov 3, 2011
Yes, axial as well as lateral expansion joints can be absorbed together in a single bellows design, but the lateral movement would be very minimal compared to a double or universal type expansion joint. Single Tied Expansion Joint Read More
Is the bellow really being compressed or is the entire bellow is moving?
Added on Fri, Oct 19, 2012
When there is an axial movement, the in-line bellows will start compressing and the balancing bellows will extend and vice versa. Both bellows will be moving. In-line Pressure Balanced Expansion Joint Read More
 
 
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