Chapter 2. Installation
18
PanaFlow™ MV80 & MV82 User’s Manual
2.3.1d Hot Tap Guidelines (cont.)
Proceed as follows:
1.
Confirm that the installation site meets the minimum upstream and downstream pipe diameter requirements.
2.
Weld a two inch mounting adapter on the pipe. Make sure the mounting adapter is within ± 5° perpendicular to
the pipe centerline (see
). The pipe opening must be at least 1.875 inches in diameter.
3.
Connect a two inch process connection on the mounting adapter.
4.
Connect an isolation valve on the process connection. The valve's full open bore must be at least 1.875 inches
in diameter.
5.
Run a static pressure check on the welds. If pressure loss or leaks are detected, repair the joint and re-test.
6.
Connect the hot tapping equipment to the isolation valve, open the isolation valve and drill at least a 1.875 inch
diameter hole.
7.
Retract the drill, close the isolation valve, and remove the hot tapping equipment.
8.
Connect the flowmeter to the isolation valve and open the isolation valve.
9.
Calculate the sensor probe insertion depth and insert the sensor probe into the pipe as described on the
following pages.
Содержание PanaFlow MV80
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