Insertion Procedure For Flowmeters With Permanent Insertion Tool - GE PanaFlow MV80 User Manual

Chapter 2. Installation
2.3.3 Installing Flowmeters with a Packing Gland Connection (cont.)
Example 2 - NPT Style Meters:
In this example, the length of thread engagement on the NPT style meters must also subtracted in the equation shown in
Figure 13 on page 23. The length of the threaded portion of the NPT meter is 1.18 inches. Measure the threaded
portion still visible after the installation and subtract that amount from 1.18 inches. This gives you the thread
engagement length. If this cannot be measured, use 0.55 inch for this amount.
•
F = 12 inches
•
R = 5 inches
•
t = 0.438 inches
•
thread engagement = 1.18 inches - visible thread length (or 0.55 inches nominal value)
For this example, the equation yields an insertion length of 15.54 inches.

2.3.4 Insertion Procedure for Flowmeters with Permanent Insertion Tool

Refer to Figure 14 below, and follow the instructions on the next page.
24
Depth Marker Arrow
Stanchion
Scribe Mark
Permanent
Insertion Tool
Flow
Figure 14: Flowmeter with Permanent Insertion Tool
Upper Retractor Bracket
Stem Lock Bolt
(center)
Sensor Alignment
Pointer
Stem
Packing Gland Nuts
Stem Housing
Sensor Head
PanaFlow™ MV80 & MV82 User's Manual