|
MEASURING CHOKE WITH RING-SHAPED CHAMBERS BY DIN STANDARD |
|
Nominal aperture |
DN 50 | DN 65 | DN 80 | DN 100 | DN 125 | DN 150 | DN 175 | DN 200 | DN 250 | DN 300 | DN 350 | DN 400 | DN 500 | |
a |
2 |
2 |
4 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
7 |
7 |
|
b |
85 |
104 |
116 |
140 |
166 |
195 |
224 |
248 |
304 |
357 |
411 |
462 |
576 |
|
c |
NP 16 |
302 |
322 |
338 |
358 |
388 |
412 |
442 |
468 |
520 |
578 |
550 |
690 |
810 |
NP 25 |
- |
- |
- |
- |
- |
- |
448 |
478 |
535 |
595 |
650 |
705 |
815 |
|
NP 40 |
302 |
322 |
338 |
362 |
388 |
418 |
460 |
485 |
545 |
610 |
665 |
735 |
815 |
|
NP 64 |
302 |
322 |
338 |
362 |
388 |
418 |
460 |
485 |
545 |
610 |
665 |
735 |
- |
|
NP 100 |
302 |
322 |
338 |
362 |
388 |
418 |
460 |
485 |
545 |
610 |
665 |
- |
- |
|
d |
NP 16 |
102 |
122 |
138 |
158 |
188 |
212 |
242 |
268 |
320 |
378 |
438 |
490 |
610 |
NP 25 |
- |
- |
- |
- |
- |
- |
248 |
278 |
335 |
395 |
450 |
505 |
615 |
|
NP 40 |
102 |
122 |
138 |
162 |
188 |
218 |
260 |
285 |
345 |
410 |
465 |
535 |
615 |
|
NP 64 |
102 |
122 |
138 |
162 |
188 |
218 |
260 |
285 |
345 |
410 |
465 |
535 |
- |
|
NP 100 |
102 |
122 |
138 |
162 |
188 |
218 |
260 |
285 |
345 |
410 |
465 |
- |
- |
|
e |
72 |
94 |
105 |
128 |
154 |
182 |
212 |
238 |
291 |
342 |
394 |
446 |
548 |
|
h |
88 |
110 |
121 |
150 |
176 |
204 |
234 |
260 |
313 |
364 |
422 |
474 |
676 |
|
f |
2.5 |
2.5 |
2.5 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3.5 |
3.5 |
3.5 |
|
|