VorTek Pro-T, Instruction Manual

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Chapter 2 Installation Series M22/M23/M24 Instruction Manual
2-
12
M-000-00010
Installing Flow Meters with a Compression Connection*
Use the following formula to determine insertion length for flow meters
(NPT and flanged) with a compression process connection. The installa-
tion procedure is given on the next page.
Insertion Length Formula
I = S – F – R – t
Where:
I =
Insertion length.
S =
Stem length – the distance from the center of the sensor head to the base
of the enclosure adapter (S = 29.47 inches for standard probes; S = 13.1
inches for compact; S = 41.47 inches for 12-inch extended).
F = Distance from the raised face of the flange or top of NPT stem housing to
the outside of the pipe wall.
R =
Pipe inside diameter

2 for pipes ten inches and smaller.
R =
Five inches for pipe diameters larger than ten inches.
t =
Thickness of the pipe wall. (Measure the disk cut-out from the tapping
procedure or check a piping handbook for thickness.)
Figure 2-6. Insertion Calculation (Compression Type)
Example:
To install a Series M23 meter with a standard probe (S = 29.47 inches) into a 14
inch schedule 40 pipe, the following measurements are taken:
F=3 inches
R=5 inches
t=0.438 inches
The insertion length for this example is 21.03 inches. Insert the stem through
the fitting until an insertion length of 21.03 inches is measured with a ruler.
*
All dimensions are in inches