Project Guidance; Sizing Table (Dn 2 To Dn 2000) - Siemens MAG 1100 F Operating Instructions Manual

SITRANS F M

3. Project guidance

3.1.1.
Sizing table
(DN 2 to DN 2000)
3. Project guidance
The table shows the relationship between flow velocity v, flow quantity Q and sensor dimension DN.
Guidelines for selection of sensor
Min. measuring range: 0 ... 0.25 m/s
Max. measuring range: 0 ... 10 m/s
Normally the sensor size is selected so that the nominal flow velocity v lies within the measuring
range 1 ... 3 m/s.
Flow velocity calculation formula:
1273.24 x Q [l/s]
V = [m/s] or
DN 2 [mm]
Flow velocity calculation formula:
0.408 x Q [GPM]
V = [ft/s] or
(Pipe ID) 2 [inch]
3
353.68 x Q [m /h]
V = [m/s]
2
DN [mm]
283.67 x Q [MGD]
V = [ft/s]
(Pipe ID) 2 [inch]
23