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Refractory Lined Expansion Joint Diagram

model cut-out section of a refractory-lined FCCU expansion joint for flue gas or catalysts service
  1. Pressure Gauge - to monitor the pressure between the plies
  2. Inconel 625 LCF Two-ply Testable Bellows with Wire Mesh between the Plies - the wire mesh ensures flow from one side to the other side across the convolutions
  3. Carbon Steel Cover - pressure sealing in the even of bellows leak
  4. Control Rods - limits thermal movement
  5. 304 Stainless Steel Test Port / Valve - connection for air test of bellows
  6. Fire Blanket / KO Wool - keeps the bellows temperature above the dew point temperature of the flue gas (350°F to 450°F)
  7. Carbon Steel Lifting Lug - facilitates lifting
  8. Carbon Steel Shell
  9. 5" Thick Vibra Cast Refractory - reduces shell temperature to 350°F
  10. 3/8" Thick 304 Stainless Steel Liner with 3/4" Thick Abrasion Resistant Refractory
  11. Ceramic Fiber Bellows Packing - reduces bellows temperature to under 1000°F
  12. 309 Stainless Steel Hose Braid Packed with Ceramic Fiber - seals the liner gap to prevent the catalyst from collecting in the bellows
  13. 304 H Stainless Steel - insulation box
  14. 304 H Stainless Steel Refractory V Anchors - secures refractory to pipe

Contact Us: +1 (281) 241-9418 Toll Free: (855) 591-0906 Fax: +1 (713) 731-8640
Our Parent Company: Piping Technology Pipe Supports, Pipe Clamps, Pipe Hardware & Insulated Pipe Shoes
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