Weld-On Adapter For Sensyflow Fmt400-Vts - ABB Sensyflow FMT400-VTS Commissioning Instructions

Installing the flowmeter sensor
1. Insert the O-ring (55 x 3 mm [2.16 x 0.12 inches]) supplied into the groove provided for this
purpose.
2. Push the flowmeter sensor into the adapter and screw into place.
3. All flange screws must be installed properly.
Before disassembling the flowmeter sensor, ensure that the pipeline has been depressurized.
WARNING
If you attempt to install / disassemble the flowmeter sensor at an absolute pressure of more
than 1.1 bar, it could fly out, resulting in severe injuries or death.
Use the integrated hot tap fitting.
WARNING
Attempting the installation / disassembly process at high temperatures or when using
hazardous gases can result in severe injuries or death.
Use the integrated hot tap fitting.
IMPORTANT (NOTE)
In the case of the type 1 pipe component (wafer design) with ball valve, flowmeter sensors
with a length of 425 mm (16.73 inches) must be used for nominal diameters of DN 125, DN
150, and DN 200 / ASME 6" and ASME 8".
4.3

Weld-on adapter for Sensyflow FMT400-VTS

If you are installing the flowmeter sensor in larger nominal diameters or non-circular cable cross
sections, you must observe the following points when attaching the weld-on adapter to the
pipeline:
1 The length of the weld-on adapter must be equal to L once it has been welded on
(see Figures 7 and 8)
L = h – 1/2 x Ø D
775 mm (30.51 inches) (flowmeter sensor lengths)
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2 It is essential to maintain a right angle to the pipe axis (max. tolerance: 2°).
3 The adapter centering pin must be aligned with the pipe axis in the flow direction (outflow
side, behind the measuring point).
4 Once welding is complete, there must be a passage of at least 28 mm (1.10 inches) free for
the purpose of mounting the flowmeter sensor; drill to create if necessary.
5 Installing the flowmeter sensor:
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CI/FMT400-VTS/VTCS-EN
where h = 263 mm (10.35 inches), 425 mm (16.73 inches) or
external
Shorten the length of the weld-on adapter as appropriate before welding it on. Once it has
been welded on, the weld-on adapter may extend into the pipeline by several mm
(max. 10 mm [0.39 inches]).
Observe thickness of pipeline wall and degree of shrinkage when welding on.
The distance h from the upper edge of the adapter flange to the the pipe central axis
must be within a tolerance of ± 2 mm (0.08 inches).
Insert the O-ring (55 x 3 mm [2.16 x 0.12 inches]) supplied into the groove provided for
this purpose.
Push the flowmeter sensor into the adapter and screw into place.
Sensyflow FMT400-VTS, FMT400-VTCS
Mounting
EN - 13