| ITALIAN STANDARDS UNI 6090 LOOSE FLANGE PN 16 |
| Directions for the designation |
Lapped flanges |
Sscrews |
Weight |
Rated
Diameter |
External diameter
of the pipe |
a |
b |
D |
d2 |
f |
t |
Holes |
Flange |
| 25 |
30 |
85 |
16 |
115 |
33 |
14 |
4 |
4 |
M12 |
1,11 |
| 33,7 |
37 |
1,08 |
| 32 |
38 |
100 |
16 |
140 |
41 |
18 |
4 |
4 |
M 16 |
1,63 |
| 42,4 |
46 |
1,58 |
| 40 |
44,5 |
110 |
16 |
150 |
48 |
18 |
4 |
4 |
M 16 |
1,85 |
| 48,3 |
52 |
1,81 |
| 50 |
57 |
125 |
16 |
165 |
62 |
18 |
4 |
4 |
M 16 |
2,16 |
| 60,3 |
64 |
2,14 |
| 65 |
76,1 |
145 |
16 |
185 |
80 |
18 |
4 |
4 |
M 16 |
2,60 |
| 80 |
88,9 |
160 |
18 |
200 |
94 |
18 |
5 |
8*** |
M 16 |
3,14 |
| 100 |
108 |
180 |
18 |
220 |
113 |
18 |
5 |
8 |
M 16 |
3,63 |
| 114,3 |
119 |
3,47 |
| 125 |
133 |
210 |
18 |
250 |
138 |
18 |
5 |
8 |
M 16 |
4,49 |
| 139,7 |
145 |
4,26 |
| 150 |
159 |
240 |
18 |
285 |
164 |
22 |
5 |
8 |
M 20 |
5,54 |
| 168,3 |
174 |
5,16 |
| 175 |
193,7 |
270 |
20 |
315 |
200 |
22 |
5 |
8 |
M 20 |
6,76 |
| 200 |
219,1 |
295 |
20 |
340 |
225 |
22 |
5 |
12 |
M 20 |
7,22 |
| 250 |
267 |
355 |
24 |
405 |
273 |
25 |
5 |
12 |
M 22 |
12,0 |
| 273 |
279 |
11,6 |
| 300 |
323,9 |
410 |
28 |
460 |
330 |
25 |
5 |
12 |
M 22 |
16,3 |
| 350 |
355,6 |
470 |
32 |
520 |
362 |
25 |
5 |
16 |
M 22 |
25,4 |
| 368 |
374 |
23,6 |
| 400 |
406,4 |
525 |
36 |
580 |
413 |
30 |
6 |
16 |
M 27 |
33,4 |
| 419 |
426 |
31,0 |
| 450 |
457,2 |
585 |
40 |
640 |
464 |
30 |
6 |
20 |
M 27 |
43,3 |
| 500 |
508 |
650 |
44 |
715 |
515 |
33 |
6 |
20 |
M 30 |
60,6 |
| * |
The weight is approximate and calculated on base 7.85 Kg/dm3 |
| ** |
Raw hole to be worked again according to the real external diameter of the pipe |
| *** |
For PN10 the flange should have 4 holes |
|
