FPD350 Torbar
Averaging pitot tubes
3 Torbar Removing and Refitting
26
OI/FPD350–EN Rev. H
3.3 Models FPD350.(L6/L7)
3.3.1 Removing
Referring to Fig. 3.1:
1. Reposition chain link
A
to lengthen safety chain
B
to its
maximum. Take care if the Torbar begins to exit from
packing gland
C
.
2. Slacken packing gland
C
slowly and just sufficiently to
enable the slow, controlled exit of the Torbar.
3. When the Torbar is clear of isolation valve
D
, fully close
the valve.
4. Slacken packing gland
C
slowly to release the pressure
in pressure chamber
E
.
5. Remove the Torbar completely if required.
3.3.2 Refitting
Referring to Fig. 3.1:
1. Insert the Torbar into packing gland
C
and tighten the
packing gland until it is fully sealed, ensuring the Torbar is
able to slide through it.
2. Ensure safety chain
B
is securely attached to pressure
chamber
E
3. Attach chain link
A
to safety chain
B
, ensuring the
safety chain is tight.
4. Carefully open isolation valve
D
and check for leaks
around packing gland
C
.
5. Insert the Torbar through isolation valve
D
until it either
touches the opposite internal wall of the process pipe
(
Models L601 and L701
) or enters the opposite fitting
F
(
Model L702
).
6. Reposition chain link
A
to tighten safety chain
B
.
7. Turn the Torbar until the indentation marks on the head are
positioned downstream of the flow – see Fig. 2.1, page 3.
8. Fully tighten packing gland
C
, ensuring the Torbar does
not turn. Check for leaks.
9. Ensure that safety chain
B
is fully tightened and secure.
10. Check the Torbar is installed correctly and aligned.
Warning.
Do not position any part of the body in the
Torbar's exit path when removing or refitting the Torbar.
Warning.
During step 6, maintain continuous pressure
on the Torbar to ensure that it remains in contact with the
opposite internal wall of the process pipe (
Models
FPD350.(L6/L7).E1
) or in the opposite fitting (
Model
FPD350.L7.E2
).
Fig. 3.1 Removing and Refitting Models FPD350.(L6/L7)
D
E
C
B
A
F
Model L702 Only
