10-21
Rosemount Tank Radar REX
Chapter 10 Mechanical Installation
Installation Manual
308014EN, Edition 4
May 2013
10.3.2 Still Pipe Requirements
The RTG 3950 Still-pipe Array antenna fits 5", 6", 8", 10" and 12" flanges
and pipes. The adaption is accomplished by selecting a suitable Still-
pipe Array antenna. The gauge has a meeting flange for sealing of the
tank.
The still pipe must be vertical within 0.5° (0.2 m over 20 m).
Table 10-1 shows the wide range of schedules and pipe inner diameters
that the Array antennas can be mounted in.
Table 10-1. Antenna size and corresponding pipe inner diameter.
10.3.3 Flange Requirements
The RTG 3950 Still-pipe Array antenna fits flanges of sizes 5", 6", 8", 10"
and 12". The gauge has a meeting flange for sealing of the tank. The
flange must be horizontal within ±2°.
Figure 10-10. The flange must be horizontal within ±2°.
Antenna size (mm)
Pipe
Size Inner diameter (mm)
120.2 5" SCH10-SCH60 134.5 - 125.3
145.2 6" SCH10-SCH60 161.5 - 150.3
189 8" SCH20-SCH80 206.3 - 193.7
243 10" SCH10-SCH60 264.7 - 247.7
293.5 12" SCH 10-40-XS 314.7 - 298.5
3940_FlangeRequirements.eps