Siemens SITRANS FM MagFlo MAG 3100 Anleitung Seite 6

® ® ® ® ®
SITRANS F M MAGFLO
Effect of temperature and
material on working
pressure
Installation
Tightening
6
Electromagnetic flowmeter type MAG 3100 with PTFE or PFA liner
Metric (Pressures in bar)
PN rated flanges
Material Flange Temperature ° ° ° ° ° C
−2 0
group rating
1C1 PN 6 6.0
(A105) PN10 10.0 10.0 10.0 9.7
PN16 16.0 16.0 16.0 15.6 15.1
PN 25 25.0 25.0 25.0 24.4 23.7
PN 40 40.0 40.0 40.0 39.1 37.9
2C1 PN 6 5.5
(304) PN 10 9.1
PN 16 14.7 14.2 12.1 11.0 10.2
PN 25 23.0 22.1 18.9 17.2 16.0
PN 40 36.8 35.4 30.3 27.5 25.5
2C2 PN 6 5.5
(316) PN 10 9.1
PN 16 14.7 14.3 12.5 11.4 10.6
PN 25 23.0 22.3 19.5 17.8 16.5
PN 40 36.8 35.6 31.3 28.5 26.4
ANSI flanges
Material Flange Temperature ° ° ° ° ° C
−2 0
group rating
1.1 Cl. 150 19.7 19.7 17.9 15.9 14.7
(A105) Cl. 300 51.0 51.0 46.6 45.2 44.4
2.1 Cl. 150 19.0 19.0 15.9 14.1 13.6
(F304) Cl. 300 49.7 49.7 41.4 37.2 35.5
2.2 Cl. 150 19.0 19.0 16.2 14.8 14.1
(F316) Cl. 300 49.7 49.7 42.8 38.6 36.9
The above tables show the effect that an increase of temperature or change of material have
on the maximum working pressure of the flange. The values are independent of nominal size.
For intermediate temperatures use value from nearest higher temperature.
Example
For a PN 16 flange in 2C2 (316) material at 80 degrees the maximum working pressure should
be taken as 12.5 bar.
Imperial (Pressures in Psi)
50 100 150 180
6.0 6.0 5.8 5.6
9.4
5.3 4.5 4.1 3.8
8.8 7.5 6.8 6.3
5.3 4.6 4.2 3.9
8.9 7.8 7.1 6.6
38 93 149 180
The sensor must be mounted between two
flanges. Gaskets are only necessary when the
flowmeter is installed with earthing flanges as
the liner replaces gaskets.
Standard bolts must be well lubricated and
tightened evenly around the gasket. Leakage/
damage to the flowmeter or piping may arise if
bolts are overtightened.
PN rated flanges
Material Flange Temperature ° ° ° ° ° F
−5
group rating 122
ASTM PN 6 87 87
A105 PN 10 145 145
PN 16 232 232
PN 25 363 363
PN 40 580 580
ASTM PN 6 80 77
A240 PN 10 132 128
304 PN 16 213 206
PN 25 334 320
PN 40 534 513
ASTM PN 6 80 77
A240 PN 10 132 129
316 PN 16 213 207
PN 25 334 323
PN 40 534 516
ANSI flanges
Material Flange Temperature ° ° ° ° ° F
−5
group rating 100
ASTM Cl. 150 285 285
A105 Cl. 300 740 740
ASTM Cl. 150 275 275
A240 Cl. 300 720 720
F304
ASTM Cl. 150 275 275
A240 Cl. 300 720 720
F316
212 302 356
87 84 81
145 141 136
232 226 219
363 354 344
580 567 550
65 59 55
109 99 91
175 160 148
274 249 232
439 399 370
67 61 57
113 103 96
181 165 154
283 258 239
454 413 383
200 300 356
260 230 213
675 655 644
230 205 197
600 540 515
235 215 204
620 560 535