: Controlling stress by strategically adding supports, loops, and restraints to ensure flexibility and prevent leaks or excessive nozzle loads. Designer Responsibilities in Lesson 1
Managing the combined effects of internal pressure and the dead weight of pipe, fluid, and insulation. Occasional Loads
Imagine a pump (Anchor A) and a vessel (Anchor B). The pipe connecting them acts like a stiff beam.
): Includes the weight of the pipe, fluid, insulation, and components (valves, flanges). 2. Secondary Loads (Thermal Expansion/Contraction) The pipe connecting them acts like a stiff beam
Secondary stress is developed by self-limiting displacements, primarily thermal expansion. When the pipe deforms or yields locally, the internal strain is relieved, and the stress drops. Managing secondary stress requires introducing piping flexibility, such as expansion loops or offsets, rather than adding rigid supports. 4. Fundamental Piping Support Strategies
– from thermal expansion & contraction.
When a piping system undergoes thermal expansion, it must possess enough inherent flexibility to absorb the growth without overloading connected equipment or overstressing the pipe material. or expansion joints.
Displacement forces generated when the piping material expands or contracts due to temperature differentials between installation and operation. Thermal Expansion and Flexibility
If the stress PDF shows an operating displacement > 1 inch at any support point, you specified the wrong support type. Change it to a variable spring, then re-route to eliminate the spring in Revision 2.
Disclaimer: Professional training materials like Fluor's are proprietary. However, many industry standards and educational institutions offer public, high-quality PDFs on piping design and stress analysis. 1 inch at any support point
Introduce system flexibility using expansion loops, offsets, or expansion joints. 3. The Flexibility Analysis Workflow
Identifying where supports are necessary to prevent sagging or excessive stress concentrations.