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Vortex Induced Vibration in Thermowells


ASME PTC 19.3 TW is a mechanical design standard for reliable service of tapered, straight, and stepped-shank thermowells. The Standard was re-written in 2010 (revised in 2016) to include a design requirement for the consideration of oscillation of thermowells in two different planes versus just one. The GPA Midstream Technical Executive Committee tasked this workgroup to enhance awareness regarding this updated design requirement. This bulletin summarizes the requirements for initial design and potential review of the design of in-service thermowells.

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