FPD350 Torbar
Averaging pitot tubes
2 Initial Installation
OI/FPD350–EN Rev. H
13
2.12 Threaded Model FPD350.L7.E2
Install the Torbar as follows:
1. Select the required insertion position and mark the pipe.
2. Drill a 6 mm (0.24 in) pilot hole at the marked position,
then drill to 28 mm (1.1 in).
3. Align the threaded fitting concentrically over the hole and
tack-weld in place.
4. Using a suitably sized and threaded length of pipe, check
the threaded fitting is concentric and aligned correctly –
see Fig. 2.2, page 4.
5. Weld the threaded fitting to the pipe.
6. Measure exactly 180° around the pipe circumference and
mark the pipe.
7. Repeat steps 2 to 5.
8. Referring to Fig. 2.11:
a. Apply suitable sealant to the close nipple
A
and
isolation valve
B
and fit them to the threaded fitting
C
. Tighten securely.
b. Ensure packing material is in place in packing gland
D
.
c. Fit pressure chamber
E
, complete with packing
gland
D
, to isolation valve
B
, using appropriate
sealants where necessary.
d. Fully open isolation valve
B
and insert the Torbar
through the packing gland, isolation valve and
process pipe until the tip exits at the opposite fitting.
e. Apply appropriate sealant to the threads of support
plug
F
.
f.
Screw support plug
F
into threaded fitting
G
and
tighten, ensuring that it contacts the Torbar.
g. Turn the Torbar until the indentation marks on the
head are positioned downstream of the flow – see
Fig. 2.1, page 3.
h. Fully tighten packing gland
D
, ensuring the Torbar
does not turn.
i.
Ensure safety chain
H
is securely attached to
pressure chamber
E
and that chain link
J
is
fitted.
j.
Attach chain link
J
to safety chain
H
ensuring the
safety chain is tight.
9. Check the Torbar is installed correctly and aligned.
10. Pressurize the process pipe and check for leaks.
Warning.
Threaded model FPD350.L7.E2 is supported in
the process pipe at the Torbar tip as well as at the entry
point into the pipe, therefore it cannot be 'Hot-Tap' installed.
Before drilling into the pipe, reduce the pipe pressure to a
safe level and remove all hazardous material. Before
inserting the probe, you must also stop the flow completely,
to ensure that the probe can correctly engage with the end
support.
Fig. 2.11 Installation of Threaded Model FPD350.L7.E2
F
G
A
C
B
E
H
D
J
Flow
Max. 60 mm
(2.4 in)
Pipe Wall
