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60″ Pressure Balanced Expansion Joint with Turning Vanes for a Power Plant in Washington

November 9, 2010

60" Pressure Balanced Expansion Joint with Turning Vanes for a Power Plant in Washington
Pressure Balanced Elbow Expansion Joint

The existing pressure balanced elbow expansion joint with liners was re-designed with turning vanes to eliminate the vibration impact on the bellows. U.S. Bellows performed a computational fluid dynamics (CFD) analysis to determine the design of the turning vanes.

Flow Path Comparison
Computational Fluid Dynamics (CFD) Analysis

The turning vanes redirect the flow stream, which creates a smoother flow, thus eliminating the flow induced vibration. The bellows and liner were fabricated from 321 stainless steel and the rest is fabricated from carbon steel. An air and soap test was performed prior to shipping it to a power plant in Washington.

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