Siemens SITRANS FC620 Operating Instructions Manual page 45

Process conditions
Calculations for ASME flanges are based on ASME B16.5 Material group 2.2 (316/316L
dual certified).
ASME class 900 compatible to process connection ASME B16.5
149 (2161)
91 (1320)
Fig. 22: Allowed process pressure as a function of process connection temperature
ASME class 1500 compatible to process connection ASME B16.5
Fig. 23: Allowed process pressure as a function of process connection temperature
1
2
p in bar
(psi)
160 (2320)
140 (2030)
120 (1740)
100 (1450)
80 (1160)
60 (870)
40 (580)
20 (290)
0
-50 0
(32)
(-58)
-70
38
(-94)
(100)
p in bar
(psi)
300 (4351)
250 (3626)
248 (3597)
220 (3191)
200 (2901)
152 (2205)
150 (2176)
134 (1944)
100 (1450)
50 (725)
0
-50 0
(-58) (32)
-70 38
(-94) (100)
Process connection compatible to ASME B16.5 class 1500:
SITRANS FCS6x0 with material wetted parts C-22/2.4602 (without ASME
compliance);
FCS600 with meter size DN15, material wetted parts 1.4404/316L (without
ASME compliance);
FCS600 with meter size DN15, material wetted parts C-22/2.4602 (option C70)
Process connection compatible to ASME B16.5 class 1500:
FCS600 with meter size DN25, material wetted parts 1.4404/316L (without
ASME compliance);
FCS600 with meter size DN15, material wetted parts 1.4404/316L (option C70);
FCS600 with meter size DN25, material wetted parts C-22/2.4602 (option C70)
50
100
150 200
(122) (212)
(302) (392)
100
50 150
(212)
(122) (302)
A5E52748375-AA, 2023/09
Operating conditions
250 300 350 T in °C
(482) (572) (662)
(°F)
250
300
200
(482)
(572)
(392)
FC6x0
1
1
2
350
T in °C
(662)
(°F)
45 / 194