Reference Manual
00809-0100-4004, Rev BA
August 2010
Rosemount 8800D
2-12
Flanged-Style
Flowmeter Mounting
Physical mounting of a flanged-style flowmeter is similar to installing a typical
section of pipe. Conventional tools, equipment, and accessories (such as
bolts and gaskets) are required. Tighten the nuts following the sequence
shown in Figure 2-9.
NOTE
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.
Insert Integral Temperature Sensor (MTA Option Only).
The temperature sensor is coiled and attached to the electronics bracket.
Remove the styrofoam around sensor and insert temperature sensor into the
hole at the bottom of the meter body. There is no need to remove the opposite
end from the electronics. Tighten with
1
/2 -in. open-end wrench approximately
3
/4 turns past finger tight.
Meter body should be insulated to achieve stated temperature accuracy.
Insulation should extend to the end of the bolt on the bottom of the meter body
and should leave at least 1-in. (25 mm) of clearance around the electronics
bracket. The electronics bracket and electronics housing should not be
insulated.
Do not loosen or remove the temperature connection at the electronics when the housing
integrity needs to be maintained.
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