Head Radius Specifications Standard Flanged and Dished Dish radius (DR): Equal to 100% of outside head diameter. Knuckle radius (KR): 2" (Over 24" in outside diameter.)
ASME Flanged and Dished Dish radius (DR): Equal to 100% of outside head diameter. Knuckle radius (KR): Minimum of 6% of outside head diameter.
Shallow Flanged and Dished Dish radius (DR): Equal to 1-1/4" per foot of dish area only. Knuckle radius (KR): 2" (Over 24" in outside diameter)
Elliptical Dished Heads Elliptical heads are formed based on an 8-point ellipse radius.
80% Dished Radius, 10% Knuckle Radius Dish radius (DR): Minimum of 80% of inside head diameter. Knuckle radius (KR): 2" Minimum of 10% of inside head diameter. |