Reference Manual
00809-0100-4004, Rev BA
August 2010
Rosemount 8800D
2-10
1. Place the alignment rings over each end of the meter body.
2. Insert the studs for the bottom side of the meter body between
the pipe flanges.
3. Place the meter body (with alignment rings) between the
flanges. Make sure that the alignment rings are properly
placed onto the studs. Align the studs with the markings
on the ring that correspond to the flange you are using.
If a spacer is used, see Spacers and Table 2-6 below.
NOTE
Be sure to align the flowmeter so the electronics are accessible, the
conduits drain and the flowmeter is not subject to direct heat.
4. Place the remaining studs between the pipe flanges.
5. Tighten the nuts in the sequence shown in Figure 2-9 on page 2-13.
6. Check for leaks at the flanges after tightening the flange bolts.
NOTES
The required bolt load for sealing the gasket joint is affected by several
factors, including operating pressure and gasket material, width, and
condition. A number of factors also affect the actual bolt load resulting from a
measured torque, including condition of bolt threads, friction between the nut
head and the flange, and parallelism of the flanges. Due to these
application-dependent factors, the required torque for each application may
be different. Follow the guidelines outlined in the ASME Pressure Vessel
Code (Section VIII, Division 2) for proper bolt tightening.
Make sure the flowmeter is centered between flanges of the same
nominal size as the flowmeter.
Spacers
Spacers are available with the Rosemount 8800D to maintain the
Rosemount 8800A dimensions. If a spacer is used, it should be downstream
of the meter body. The spacer kit comes with an alignment ring for ease of
installation. Gaskets should be placed on each side of the spacer.
Table 2-6. Dimensions for Spacers
Line Size Dimensions inch (mm)
1.5 (40) 0.47 (11.9)
2 (50) 1.17 (29.7)
3 (80) 1.27 (32.3)
4 (100) 0.97 (24.6)
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