Badger Meter Vortex Meters - Manual (Page 21)

21 09-VRX-UM-00408 07/12
HOT TAP INSERTION FLOW METER INSTALLATION
Where de-pressurizing the line for fl ow meter maintenance is impossible or undesirable, the “hot tap” method of installation is
used. This method involves inserting the fl ow meter through a 2 inch (50.76 mm) spool piece and a 2 inch (50.76 mm) full port
valve and will require a longer shaft length as well as greater clearance space for removal and installation.
DANGER - Caution should be used when inserting or retracting at pressures exceeding 60 PSIG (4.14 BARg).
Figure A4 shows the cutaway of a typical hot tap installation.
3” x 2” Nipple
2” Full Port
Ball Valve
6” x 2” Nipple with
Pressure Port
Coupler
FIGURE A4 - HOT TAP CUTAWAY