12.2.6 Pipe Adapter (E-PA)
The pipe adapter is used to adapt the sighting tube (A-ST-xx) to the sensor, see section 12.2.5 Sighting Tube,
page 101. The adapter has two inner threads to adapt the outer thread of the instrument (1.5ā UNC) to the outer
thread of the sighting tube (1.5ā NPT).
Figure 12-21: Pipe Adapter