Torispherical heads

CR = do
KR = 0,1Do
SF = 3,5t or per request
DH = 0,1935Do – 0,455t
THi = SF + DH

Elipsoidal heads

CR = 0,8Do
KR = 0,154Do
SF = 3t or per request
DH = 0,255Do – 0,635t
THi = DF+DH

Dished bottom for tank

Single-walled per EN 12285-1 or DIN 6608-1 and
DIN 6616
Double-walled per
EN 12285-1 or DIN 6608-2
and DIN 6616
CR = Do
KR ≥ ~ 1/30 Do

Spherical bottoms

CR > Do
KR per request
SF = 20-30 mm

Flat bottoms

KR = 30-50mm
or per request
SF = ~20-30mm
or per request