10-PTT-UM-00311 08/12
Page 5
V.
INSTALLATION INSTRUCTIONS - DOUBLE SUPPORT
1. Follow Steps 1 through 7 in Section IV. At 180° from and on the same plane as the previously
drilled hole, grind the surface of the pipe to provide a clean area for welding. Drill a hole and
deburr, especially on the inside of the pipe. The hole used for the double support should be
sized according to
Table 2
.
2. Weld the double support weld-o-let making sure that it is centered with the drilled hole
(
1/16”
weld gap recommended).
3. Install the PFA Ellipse sensor through the two holes. Make sure that the double support pin
passes through the guide ring.
See
Figure 5
.
4. Align the arrow located on the sensor head in the direction of flow as in
Step 9
, Section IV.
5. Ensure that the PFA Ellipse is in the correct orientation and spans the inside of the pipe.
Tighten the compression nut. After tightening the compression nut manually, tighten it 1¼
turns more using a wrench.
6. Install the plug into the end of the double support weld-o-let. Tighten the plug to prevent
leakage.
Threaded portion
to be installed
into weld fitting
on pipe
Install insert
as shown
Thread nut loosely
onto body of the
compression fitting
Body
Insert
Nut
FIGURE 3 − COMPRESSION FITTING ASSEMBLY
Summary of Contents for PRESO Ellipse PFA Series
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