|500 ÷ 5000||D||50||≥ 5 x s||3 ÷ 22|
For D = 500 ÷ 800 the maximum thickness is 8 mm.
D Outside diameter
Di Inside diameter
R Dish radius
r Knuckle radius
h Height of straight flange
Ht Overall external height = H+h+s
H overall internal height without straight flange
Sv Diameter of the blank
V Capacity in litres of the dished head
The tolerances applied for the pressed heads are defined according to the applicable norms (particularly the norm AFNOR NF E 81-100).
For the rolled heads are as follows:
On the external diameter:
< Ø 2000 = ± 2 ‰ · Ø
> Ø 2000 = ± 3 ‰ · Ø
Ovality (difference between the minimum diameter and the maximum diameter):
± 3 ‰ · Ø
Total height (for heads with raw edge):
– 0 +25 mm
The tolerances of dimensions and shape of the sheets to be used for reference, unless otherwise
agreed, are in accordance with UNI EN 10025 and UNI EN 10051.
However, it is possible at the time of the order to require more limited tolerances for which feasibility will be studied.
Water accumulator, autoclaves, boilers
Lliquid manure spreader, slurry tanks, filters for water irrigation
Tanks and plants for the milk and cheese sector, wine industry, production of fruit juice and beer
Agitators, mixers, reactors
Tanks for the treatment of fabrics
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