Badger Meter Model BAR - Manual (Page 6)

Ellipse® Pitot Tube Meter, BAR Annular Commercial Meter
Page 6 April 2014
INSTALLATION INSTRUCTIONS, DOUBLE SUPPORT
1 . Follow steps 1 through 7 in “Installation Instructions, Single Support” on page 5 . At 180° from, and on the same plane
as, the previously drilled hole, grind the surface of the pipe to provide a clean area for welding . Drill a hole and de-burr,
especially on the inside of the pipe . The hole used for the double support should be sized according to Table 3 .
Pipe Size Model/Sensor Weld Connector Drill Bit
2…5 in . BAR (7/16 in .) 1/2 in . 3/8 in .
6…12 in . BAR (7/8 in .) 1/2 in . 1/2 in .
14…24 in . BAR (1-1/4 in .) 1 in . 7/8 in .
Table 3: Double support drill bit size
2 . Weld the double support thread-o-let, making sure that it is centered with the drilled hole (1-1/16 weld
gap recommended) .
3 . Install the BAR Ellipse sensor through the two holes . Make sure that the double support pin passes through the guide ring .
See Figure 5 .
Flush with
pipe O.D.
2…5 in. Models
Ellipse Sensor
Double Support Pin
Guide Ring
6…24 in. Models
Figure 5: Double support installation
4 . Align the arrow on the sensor head in the direction of flow as in step 9 in “Installation Instructions, Single Support” on
page 5 .
5 . Make sure the BAR Ellipse is in the correct orientation and spans the inside of the pipe . Manually tighten the compression
nut, then use a wrench to tighten it another 1-1/4 turns .
6 . Install the plug into the end of the double support thread-o-let . Tighten the plug to prevent leakage .