Siemens SITRANS FX330 - Page 8

1 SAFETY INSTRUCTIONS
8
SITRANS FX330
www.siemens.com/flow 08/2022 - A5E36751269-AG EN
The devices are rated for the following flow velocities:
Liquids:
DN15...DN300
V
min
: 0.3 m/s
③
0.98 ft/s
①
V
max
: 10 m/s 32 ft/s
②
Gases and
steam:
DN15 V
min
: 3 m/s 10 ft/s
①
V
max
: 45 m/s 147 ft/s
②
DN15C V
min
: 3 m/s 10 ft/s
①
V
max
: 55 m/s 180 ft/s
②
DN25 V
min
: 2 m/s 6.6 ft/s
①
V
max
: 70 m/s 229 ft/s
②
DN25C V
min
: 2 m/s 6.6 ft/s
①
V
max
: 80 m/s 262 ft/s
②
DN40...
DN300
V
min
: 2 m/s 6.6 ft/s
①
V
max
: 80 m/s 262 ft/s
②
Table 1-3: Flow velocities
① Use the larger value, according to the amount.
②
Use the smaller value, according to the amount.
③
v
min
= 0.7 m/s / 2.3 ft/s in SIL mode for liquid application.
INFORMATION!
DN15C and DN25C have a robust flow sensor (signal pick-up) for harsh measuring conditions
and higher maximum velocity compared to the standard version.