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Flange Joint — Pattern & Gasket StressDRAG = ROTATE · PINCH = ZOOM · WATCH THE WRENCH GO ROUND
WINDINGS — STRESS
<40 <70 leaks
70–240 ok >240 crushed
rings stud
nut = load
8″ Cl 300 RF — raised face 1.6 mm,
spiral-wound gasket 4.5 mm. Real figures, not inflated.
Educational teaching tool — simplified and illustrative. Not for engineering design use.