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Main production and applied norms



Flat head
All dimensions: Ø maxi: 4000 mm
Ø mini: 400 mm
Radius of rives - r = 40 mm


Flat head


Spherical cap
Cold forming radius max. 0.8 D
Ø maxi: 4500 mm


Spherical cap


Standard head as in NF-E81101
Max. thickness (carbon steel): 13 mm
Max. thickness (stainless steel): 10 mm
Min. thickness: 3 mm
Min. diameter: 400 mm - Max. diameter: 3300 mm


Standard head as in NF-E81101


Flatly arched head as in NF-E81104
Max. thickness (carbon steel): 13 mm
Max. thickness (stainless steel): 10 mm
Min. thickness: 3 mm
Min. diameter: 400 mm - Max. diameter: 3000 mm


Flatly arched head as in NF-E81104


Torispherical head as in NF-E81102
Max. thickness (carbon steel): 13 mm
Max. thickness (stainless steel): 10 mm
Min. thickness: 3 mm
Min. diameter: 400 mm - Max. diameter: 3000 mm


Torispherical head as in NF-E81102


Elliptical head as in NF-E81103,axial ratio 1,9/1
Max. thickness (carbon steel): 13 mm
Max. thickness (stainless steel): 10 mm
Min. thickness: 3 mm
Min. diameter: 600 mm - Max. diameter: 2200 mm


Elliptical head as in NF-E81103,axial ratio 1,9/1