Dungs FRM 100025 HD, Instruction Manual, Page: 39 / 174

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FRM
Ÿ
Edition 10.15
Ÿ
270 440
Device selection
The following flow rate tables can be used to
select the device. The maximum indicated vol -
ume flow refers to the air with a standard densi -
ty of 1.24 kg / m
3
at a temperature of
15 °C. In case of different types of gases, a
conversion of the volume flow according to the
equation on page 18 is carried out. It is possible
to determine the maximum flow volume of the
corresponding regulator at the operating point
defined using p
d
and p
u.
This corresponds to the
maximum power of the regulator at which an
accuracy class of AC 10 is observed.
Design a straight stabilisation section with
the equal diameter.
Impulse connection at a distance of
> 5 x DN.
Maximum flow velocity in the stabilisation
section of </= 30 m/s.
Flow rate tables
←
Table of contents
FRM ... ND MD HD
p
d
[bar]
p
u
[bar]
0,03 0,05 0,075 0,1 0,15 0,2 0,25 0,3 0,35 0,4 0,5 0,75 1 1,25 1,5
0,5 150 175 185 190 155 150 140 130
0,75 160 215 230 240 190 194 181 180 170
1 170 240 280 290 221 247 249 263 253 240 230
1,5 180 260 350 370 300 305 320 300 310 310 300 310 320
2 190 280 410 430 360 360 360 360 390 360 360 360 360 370 380
2,5 200 300 460 480 410 410 470 480 490 450 450 450 450 450 450
3 220 320 510 530 450 470 550 560 590 520 520 520 520 520 520
3,5 240 340 560 570 480 530 630 630 680 570 610 640 640 640 640
4 250 360 610 610 510 580 700 700 760 640 720 760 760 760 760
4,5 260 380 650 650 530 620 770 780 840 700 800 850 870 870 880
5 270 400 680 690 550 660 830 850 910 750 860 930 950 950 1000
6 280 410 700 720 580 720 900 950 1040 850 1000 1080 1150 1150 1150
7 280 420 720 760 600 790 950 1080 1140 940 1110 1220 1300 1300 1300
8 290 430 740 790 620 850 1000 1130 1220 1030 1200 1340 1400 1400 1400
9 290 440 760 820 640 880 1040 1180 1310 1090 1290 1450 1450 1450 1450
10 300 450 780 850 660 920 1060 1220 1370 1140 1380 1520 1520 1520 1520
FRM 100025... DN25 - max. air flow volume (AC 10)