Tank Head - Torispherical DIN28011-GRC

DISHED HEADS DIN28011 - GRC NFE81102 price request

DVAI supplies dished head GRC according to NFE81 102 or Torispherical Head according to DIN28011 for tanks and pressure vessels.

DVAI manufactures your heads and bottoms by 2 differents processes depending on the diameter and the thickness:
- cold press dishing process and flanging,
- spinning forming process.

Dished heads are manufactured from DVAI’s stainless steel plate stock in order to master the quality and deadlines.
 

TECHNICAL CHARACTERISTICS NFE 81-102 / DIN 28011

dished head stainless steel



Ri (spherical radius) = De (external diameter)
E = Thickness
Rc (knuckle radius) = 0.1 x De
h2 = Ri - √ ((Ri – rc) ² - (K – rc) ²)
With K = 0.5 x (De- 2 E)

 

Values for DIN28011
Ri = De
rc= 10%xDe


 

 

 

- Machine polishing possibility


- Head cutting possibility for openings


- Possibility to manufacture your shells with the exact expansion length of your heads for easy assembling