ITABAR Flow Sensor Type
FTMD
Operating manual
6. Installation of the ITABAR Sensor
Observe the general installation notes!
6.1 Installation of Type FTM-20 and FTM-25
1. Verify that the line pressure is with rated limits
of the drilling equipment to be used.
2. Grind off paint or other coatings from the pipe
in the area where the Flo-Tap is to be installed.
3. Tack the mounting stud {1} (supplied with the
Flo-Tap) onto the pipe leaving a clearance of 1-
2 mm (Fig. 9).
4. Check the alignment of the mounting stud
again. Then the finish weld can be made.
5. Fasten unit isolating valve {2} to the mounting
stud {1} and open valve. (Fig. 9).
2
1
Fig. 9: Mounting stud with isolating valve
6. Fasten special adapter flanged nipple to unit
isolating valve (Fig. 10).
7. Install cutter arbor, shell cutter and pilot drill to
pressure drilling machine and attach the
machine to its special flanged nipple.
8. Drill through the pipe wall in accordance with
the instructions supplied with the drilling
machine. For type FTMD-25
∅
35mm.
9. Withdraw the drill past the Flo-Tap unit
isolating valve. Close the unit valve and remove
drilling machine and special flanged nipple.
Check for leakage at valve and connections.
10. Verify that the sensor profile {4} is fully
retracted in the protection pipe {3}. Check the
position of the threaded rod (Fig. 11)
Fig. 10: Drilling machine with adapter nipple
mounted on unit isolating valve
11. Now seal the threaded stud {5} with a suitable
sealing compound (Fig. 11).
12. Install the threaded stud {5} on the isolating
valve {2} (Fig. 9 and 11).
13. Verify that the instrument valves are fully
closed.
14. Check all connections for leakage by cracking
open the unit isolating valve. If necessary,
screw down the 4 screws {6} of the top packing
gland and the 4 screw nuts {7} of the bottom
packing gland (Fig. 11).
15. Increase line pressure to normal limits and
check for leakage. If there is no apparent
leakage, proceed to Flo-Tap Insertion 6.3.
6
