Usbellows logo.png
EJMA Logo

US Bellows is a Standards Subscriber | Exp: Dec 31, 2026 | See ejma.org to check verification process
Celebrating over 20 years of EJMA membership

High Temperature Fabric Expansion Joint Designed for an Exhaust Duct

November 28, 2011

113108v2a1
This rectangular fabric expansion joint will be used in an exhaust duct in a power plant. It measures 136″ L x 54″ W x 12″ face-to-face and is fabricated with stainless steel angle, frame ends, and internal liner. The fabric belt material is PTFE coated glass cloth, which is low friction and high in tear/crease resistance and tensile strength. This expansion joint is rated for an axial movement of 1-1/2″ with a lateral offset of 1/2″ and maximum temperatures up to 600°F. A quality inspection was administered, including a 100% dye-penetrant test prior to shipment.

Read More

76″ dia. Single Tied Expansion Joint for a Hot Blast Valve in a Steel Mill

November 7, 2011

115542a2

 

This single tied expansion joint is custom designed with Inconel® 825 bellows with carbon steel flanges, liners and pipes. It is 76″ I.D., 90″ O.D. and is 31-1/2″ long. It was designed for 1,900°F at 100 psig with 1″ compression. A meshed expanded metal cover was installed to allow for hot air to escape. Tests performed included a 100% dye penetrant, x-ray, and ultrasonic on pressure bearing welds. Finished units were hydro-tested at 1.5 times the design pressure. The expansion joints were designed with an inner liner to accommodate for easier field installation of refractory lining.

115542b1

 

 

Read More