Threaded Model Fpd350.H7.E2 - ABB FPD350 Torbar Instructions Manual

FPD350 Torbar
Averaging pitot tubes

2.14 Threaded Model FPD350.H7.E2

Warning. Threaded model FPD350.H7.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.
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. 2.13:
a. Apply suitable sealant to the close nipple
B
isolation valve
C
. Tighten securely.
b. Ensure 6 packing rings are located correctly inside
D
packing gland
c. Ensure the drawbolt (or optional geared) retraction
E
assembly is in the fully retracted position.
d. Fit pressure chamber
D
gland and retraction assembly
B
valve , using appropriate sealants where
necessary.
e. Insert the Torbar into packing gland
f. Turn the Torbar until the indentation marks on the
head are positioned downstream of the flow – see
Fig. 2.1, page 3.
16
A
and fit them to the threaded fitting
.
F
, complete with packing
E
, to isolation
D
.
g. Tighten the packing gland bolts
evenly until the packing gland is fully sealed,
ensuring the Torbar is able to slide through it.
h. Open isolation valve
Note. During step l, turn drive nuts
evenly to prevent binding.
i. Drawbolt retraction assembly only – turn each
drive-nut
passes through isolation valve
from the threaded fitting on the opposite side of the
process pipe by 25 mm (1.0 in). When the Torbar is
inserted fully, ensure the drawbolts
K
nuts
j. Drawbolt retraction assembly only – tighten lock
L
nuts
Note. The gear retraction handle is supplied loose
and can be fitted to either side of the gears.
However, ensure the handle is fitted so that the
Torbar is inserted when the handle is turned
clockwise.
k. Optional geared retraction assembly only – turn
the integral handle clockwise until the Torbar
protrudes from the threaded fitting on the opposite
and
side of the process pipe by 25 mm (1.0 in).
l. Apply appropriate sealant to the threads of support
M
plug
m. Screw support plug
tighten, ensuring that it contacts the Torbar.
n. Fully tighten packing gland bolts
Torbar does not turn. Check for leaks.
9. Check the Torbar is installed correctly and aligned.
10. Pressurize the process pipe and check for leaks.
2 Initial Installation
G
B
.
H
H
clockwise alternately until the Torbar
B
are in the positions shown.
.
.
M
into threaded fitting
G
OI/FPD350–EN Rev. H
equally and
equally and
and protrudes
J
and stop
N
and
, ensuring the