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Chapter 2. Installation
18 PanaFlow™ MV80, MV82 & MV84 User’s Manual
2. Confirm that the installation site meets the minimum upstream and downstream pipe diameter requirements.
See
Figure 4 on page 10 .
3. Use a cutting torch or sharp cutting tool to tap into the pipe. The pipe opening must be at least 1.875 inches in
diameter (Do not attempt to insert the sensor probe through a smaller hole).
4. Remove all burrs from the tap. Rough edges may cause flow profile distortions that could affect flow meter
accuracy. Also, obstructions could damage the sensor assembly when inserting into the pipe.
WARNING!
All flow meter connections, isolation valves, and fittings for cold tapping must have the
same or higher pressure rating as the main pipeline.
5. After cutting, measure the thickness of the cut-out and record this number for calculating the insertion depth.
6. Weld the flow meter pipe connection on the pipe. Make sure this connection is within ± 5° perpendicular to the
pipe centerline (see
Figure 13 below).
Incorrect Alignment Correct Alignment
Figure 13: Connection Alignment
7. Install the isolation valve (if used).
8. When welding is complete and all fittings are installed, close the isolation valve or cap the line. Run a static
pressure check on the welds. If pressure loss or leaks are detected, repair the joint and retest.
9. Connect the meter to the pipe process connection.
10. Calculate the sensor probe insertion depth and insert the sensor probe into the pipe as described on the
following pages.