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| INSTALLATION 3 |
| SITRANS FX300 | |
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3.5.2 Minimum outlet runs
Figure 3-8: Minimum outlet runs
1Upstream of pipe expanders, pipe bends, control valves, etc. ≥ 5 DN
2Upstream of metering points ≥ 5…6 DN
INFORMATION!
The interior of the pipe at the metering points must be free of burrs and other flow impediments. The measuring device has an internal temperature sensor. External temperature sensor must be located ≥ 5 DN behind the flow sensor outlet. Use sensors that are as short as possible to avoid disturbing the flow profile.
3.5.3 Flow straightener
If, due to the type of installation, the required inlet runs are not available, the manufacturer recommends using flow straighteners. Flow straighteners are installed between two flanges upstream of the device and shorten the required inlet run.
Figure 3-9: Flow straightener
1Straight inlet run upstream of straightener ≥ 2 DN
2Flow straightener
3Straight pipe run between flow straightener and device ≥ 8 DN
4Minimum straight outlet run ≥ 5 DN
06/2009 - SFIDK.PS.050.F2.02 A5E02100423 | www.siemens.com/flow | 27 |
