TOLLERANCES
The following tollerances are refering EN1092-1 Standards
(NOT UNI STANDARDS)
Type |
from dn |
to dn |
minus/mm |
plus/mm |
|
Outside |
Flange |
10 |
dn 125 |
0 |
3 |
neck |
11 |
150 |
1200 |
0 |
4,5 |
A |
1400 |
2000 |
0 |
6 |
|
Hole diemeter |
10 |
100 |
0 |
0,5 |
|
of centre |
125 |
400 |
0 |
1 |
|
450 |
600 |
0 |
1,5 |
||
B1 B2 B3 |
1-2-4-12 |
700 |
2000 |
0 |
3 |
Outside diameter |
10 |
150 |
2 |
2 |
|
200 |
500 |
3 |
3 |
||
D |
1-2-4-5-11-13 |
600 |
1200 |
5 |
5 |
1300 |
1800 |
7 |
7 |
||
1900 |
2000 |
10 |
10 |
||
Height of |
10 |
80 |
1,5 |
1,5 |
|
coupling necks |
11 - 13 . |
100 |
250 |
2 |
2 |
H1,H2,H3 |
300 |
2000 |
3 |
3 |
|
Neck coupling |
10 |
50 |
0,2 |
0 |
|
Diameter |
65 |
150 |
0,4 |
0 |
|
200 |
300 |
0,6 |
0 |
||
N1 |
11 |
350 |
600 |
0,8 |
0 |
700 |
1200 |
1 |
0 |
||
Neck coupling |
10 |
50 |
0 |
1 |
|
Diameter |
13 |
65 |
150 |
0 |
2 |
N2 |
200 |
300 |
0 |
4 |
|
Thickness of flanges |
|||||
if worked on |
1-2-4-5-11-13 |
Spessore =/inf 18 mm |
1 |
1 |
|
both surfaces |
thickness between 19 and 50 mm |
1,5 |
1,5 |
||
C1,C2,C3 |
thickness between 19 and 50 mm |
2 |
2 |
||
if worked on |
thickness =/inf 18 mm |
1,3 |
2 |
||
one surface |
1-2-4-5-11-13 |
thickness between 19 and 50 mm |
1,5 |
4 |
|
C1,C2,C3 |
thickness between 19 and 50 mm |
2 |
7 |
||
Surface for |
10 |
250 |
1 |
2 |
|
gasket |
>300 |
2000 |
1 |
3 |
|
Height of gasket surface f1 |
10 |
2000 |
1 |
0 |
|
Diameter of bolt circle K |
>M10 |
M24 |
1 |
1 |
|
with dimension till M24 |
|||||
Diameter of bolt circle K |
>M25 |
1,5 |
1,5 |
||
with dimension over M24 to M45 |
|||||
Wheel base between adjacent holes centres |
>M10 |
M24 |
1 |
1 |
|
with dimension till M24 |
|||||
Wheel base between adjacent holes centres |
>M25 |
M45 |
1,5 |
1,5 |
|
with dimension over M24 to M45 |
|||||
Eccentricity of surface of tightness f1 |
10 |
100 |
1 |
||
>125 |
2000 |
2 |
|||
Parallelism between tightness surfaces |
Worked on |
||||
and the support of bolt surfaces |
all surfaces |
1° |
|||
dei bulloni |
Worked on |
||||
one surface |
2° |
||||
M A R C A T U R A |
|||||
1) Name and trade mark of producer |
6) Neck thickness if diffrent fro this standard |
||||
2)) Number of this standard EN 1092-1 |
7)Code or quality of material |
||||
3) Number and type of flange |
8) Heat number |
||||
4) Nominal size |
9) If there is not space in the little flanges is possible to mark |
||||
5) Nominal preassure |
only the positions : 1-EN-5-7-8 |