Dual-Flex "DFP" In-Line Double restrained Expansion Joint with Intermediate Anchors Thorburn's in-line double expansion joint system is specified when the axial movement of the piping run exceeds the capability of Thorburn's Sing-Flex (single Bellows) expansion joint. Model "DFP" consists of two single joints joined by a common spool which is anchored to a support base (intermediate anchor) directly to the structure.
MA-Main Anchor / G-Guide Typical installation for Thorburn's Dual-Flex "DFP" expansion joint system 
Thorburn Dual-Flex expansion joint is located in the center of the piping run and each single bellows absorbs the axial movement of the section of the piping in which it is located. |
Thorburn Dual-Flex Model "DFP" unrestrained metallic bellows expansion joint with support foot, intermediate anchor system.
Shown is one of over 20 Thorburn Dual-Flex double expansion joints installed at the Ste-Marthe du Cap-de-la-Madeleine, Quebec, project in 1991 |
Available in unrestrained Universal, Tied
Universal & In-Line restrained designs 
