
Chapter 2. Installation
26
PanaFlow™ MV80, MV82 & MV84 User’s Manual
2.3.3
Installing Flow Meters 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
. 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 Flow Meters with Permanent Insertion Tool
below, and follow the instructions on the next page.
Flow
Sensor Head
Stem Housing
Packing Gland Nuts
Stem
Sensor Alignment
Pointer
Stem Lock Bolt
(center)
Upper Retractor Bracket
Depth Marker Arrow
Stanchion
Scribe Mark
Permanent
Insertion Tool
Figure 18: Flow Meter with Permanent Insertion Tool
Содержание PanaFlow MV80
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