Elliptical head DIN 28013 - ELL

DVAI manufactures elliptical Head according to NFE 81 103 or DIN 28013. Dished heads are manufactured from DVAI’s stainless steel plate stock so we can control quality and meet deadlines.

• Machine polishing possibility
• Head cutting possibility for openings
• Possibility to manufacture your shells with the exact expansion length of your heads for easy assembling

Spherical radius value (Ri):

Ri= 0.8 x De

Knuckle radius value (rc):

rc = 0.154 x De
h2 = (De-2 x E)/3.8

DE: external diameter
E: nominal thickness
H2: theoretical internal arrow
H1: straight edge height