Teledyne ADFM Hot Tap, Инструкция по установке и эксплуатации, Страница: 68 / 116

ADFM® Flow Meter

Section 2 Setup and Installation
2-48
Before installation, fully extend the Hot Tap by loosening the
clamping collar screws (Figure 2-50) and pulling the sensor all
the way back inside the nipple, as shown at the bottom left of
Figure 2-49.

WARNING
Never loosen any hardware on the Hot Tap sensor when the
pipe is pressurized. Pressure within the pipe can force the
shaft to come out of the pipe, causing grave injury to
anyone nearby.
Figure 2-50 Current HTI Hardware
The sensor’s extended length, 31.035 inches, is 2.25 inches
greater than the sensor length (28.785 in.). Use Figure 2-49 as a
guide when calculating distances
C and D .
Installation 1. With the sensor fully extended, apply pipe thread tape to
the nipple threads.
2. Screw the nipple into the valve (Figure 2-44).
3. Open the valve and push the sensor into the pipe to
Dimension I .
4.
Align the arrows printed on the Hot Tap’s electronics box with
the direction of flow (downstream). (The cable is also attached
on the downstream side of the box.)

Note
For highest accuracy, the box must be aligned exactly parallel
to the flow in the pipe, with the cable end facing downstream.
When adjusting this alignment, ROTATE THE SHAFT, not the
box itself.
WARNING
Phillips
screws
Tighten hex
screws
Collar