ITABAR Flow Sensor Type
FTMD
Operating manual
4. Equipment required for installation
1. Welding
equipment
2.
Pressure (hot-tap) drilling machine;
Mueller type DH-5 or equivalent.
3.
1 1/16"drill bit Mueller 33530
4.
Drill holder Muelller 33555
5.
Adapter nipple Mueller 36195
(Items 2 through 5 are available from Mueller Co.,
Decatur, Illinois. In most cases, the public service
company in your city is available to do the "hot-
tapping" job, or the equipment may be rented or
purchased locally.)
Pressure drill machine and tooling:
5. General Installation Notes
In order to obtain optimal measurement results,
follow the notes concerning the installation of the
ITABAR Sensor given below.
5.1 Determination of Pipe Arrangement
For design reasons, the pipe arrangement at the
installation location has to be known before the
sensor is manufactured.
For horizontal pipe arrangements the instrument
connections are placed in-line with the flow
direction (see Figure 2).
For vertical pipe arrangements, the instrument
connections for the measurement of the differential
pressure are arranged at an angle of 90° to the flow
direction (see Figure 3).
Ratchet handle
Collar
Locking mechanism
Feed tube and yoke
Clean-out notch
Oil hole
Bleeder valve
Machine adapter nipple
Cutter arbor
Shell cutter
Pilot drill
Fig. 2: Placement of the differential pressure
connecting studs for horizontal pipe
arrangement
Fig. 3: Placement of the differential pressure con-
necting studs for vertical pipe arrangement
The flow direction is indicated in each case by an
arrow on the sensor head.
3
