Badger Meter AHR - Wet Tap, Low Pressure (2 to 36")" - Manual (Page 4)

PIPE ORIENTATION AND SENSOR MOUNTING
Figure 2: Orientation and mounting
INSTALLATION INSTRUCTIONS, SINGLE SUPPORT
1 . Choose the proper location to install the AHR Ellipse using AGA/ASME standards (or equivalent) . See “Location Instructions”
on page 6 .
2 . Grind the surface of the pipe where the AHR Ellipse is to be inserted to provide a clean area for welding .
3 . Weld the supplied weld-o-let to the pipe using standard codes for your application . Protect the threads during the
welding process .
4 . Thread the close (short) nipple into the weld connector . Install the supplied 3-piece isolating ball valve .
5 . Open the isolating ball valve . Mount the high-pressure drilling machine onto the ball valve . Drill a hole through the pipe
wall according to the following table .
Model / Sensor Weld Connector Drill Bit
AHR (7/8") 1-1/4" 1-1/8"
AHR1 (1-1/4") 1-1/2" 1-3/8"
OTEE: N There is no need for a drilling machine if it is not a hot tap installation or if the system is not pressurized .
6 . Withdraw the drill bit through the isolating ball valve . CLOSE the ball valve and dismantle the drilling machine . Make sure
there is no leakage at the valve and close nipple connections . The ball valve is to remain completely closed until step 10 .
7 . Thread the supplied cage (long) nipple into the isolating ball valve . Install the supplied reducer (1-1/4" x 1" coupling) on
the cage nipple .
8 . Thread the supplied packing gland onto the reducer .
9 . Install the instrument valves (optional) at the pressure connections on the AHR head . Make sure the valves are FULLY
CLOSED before proceeding .
10 . Insert the Ellipse AHR through the packing gland and cage nipple until it reaches the isolating ball valve . Slightly tighten
the compression nut of the packing gland and attach the safety chain to the AHR . Open the isolating ball valve and push
the sensor down by hand until it reaches the opposite side of the pipe .
Ellipse® Pitot Tube Meter, AHR Annular Low Pressure Wet Tap Meter
Page 4 April 2014