GRC NF E 81 102 Dished head

GRC NF E 81 102

Dished head 

Reference: F11
Norm: NF

Technical information

R= De
r= 0.1De
h1≥ 3.5e
h2= 0.1935De-0.455e
H= h2+h1+e
Dd= 1.11De+1.85h1
V(h2)≈ 0.1(Di)³

Example

De: 2000
e: 10
R: 2000
r: 200
h1: 50
H: 442
V(h2): 776

De: Outside diameter
e: Initial thickness
R: Inside Dish radius
r: Knuckle radius
h1: Straight flange
H: Total height
V: Volume
Dd: Diameter of the disc
Di: Inside diameter
h2: Height of dished part
Hc: Center height