Dished heads are materials that have mostly semispherical shape and are used to close both sides of cylindirical bodies of cannisters. The point of having a geometrical shape as sphere can be said that radial surfaces are more resistant to pressure. Material thicknesses specify the form of dishing. As follows, you can see the values that belong to form of elliptical dishing.

R (mm) = 0.8D

r (mm) =0,154D

h1 (mm) ≥3,5t

h2 (mm) =0,26D

H (mm) =h1 +h2

Dp(mm) =1,174D + 1,7 h1 (Pul Çapı / Disk Diameter)

V (mm3) =0,13D3(h1=0)

m (kg) =2πDp2.t = tmt(Dp Birimi (m) / t birimi (mm))