Nozzle Loads, Piping Stresses, and the Effect of Piping on Equipment
Nozzle Loads, Piping Stresses, and the Effect of Piping on Equipment
Nozzle Loads, Piping Stresses, and the Effect of Piping on Equipment
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The <str<strong>on</strong>g>Piping</str<strong>on</strong>g> <str<strong>on</strong>g>Effect</str<strong>on</strong>g><br />
• <str<strong>on</strong>g>Piping</str<strong>on</strong>g> adds ano<str<strong>on</strong>g>the</str<strong>on</strong>g>r dimensi<strong>on</strong><br />
• The layout <str<strong>on</strong>g>and</str<strong>on</strong>g> support <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> piping will affect<br />
<str<strong>on</strong>g>the</str<strong>on</strong>g> forces <str<strong>on</strong>g>and</str<strong>on</strong>g> moments exerted <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g><br />
equipment.<br />
• The net force <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g> discharge nozzle <str<strong>on</strong>g>of</str<strong>on</strong>g> a pump<br />
is <str<strong>on</strong>g>the</str<strong>on</strong>g> force <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> piping weight <str<strong>on</strong>g>and</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g>rmal<br />
expansi<strong>on</strong> load minus <str<strong>on</strong>g>the</str<strong>on</strong>g> force <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> nozzle’s<br />
<str<strong>on</strong>g>the</str<strong>on</strong>g>rmal growth.<br />
• “For horiz<strong>on</strong>tal pumps, two effects <str<strong>on</strong>g>of</str<strong>on</strong>g> nozzle<br />
loads are c<strong>on</strong>sidered: Distorti<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> pump<br />
casing <str<strong>on</strong>g>and</str<strong>on</strong>g> misalignment <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> pump <str<strong>on</strong>g>and</str<strong>on</strong>g> driver<br />
shafts.”<br />
API 610 10 th Ed. 5.5.1<br />
7
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