14
Reference Manual
00809-0100-4001, Rev JA
Section 2: Installation
November 2012
Figure 2-4. Traditional flange bolt configurations
Figure 2-7. Mounting bolts and bolt configurations for coplanar flange
2.8.2
Impulse piping
The piping between the process and the transmitter must accurately transfer the pressure to
obtain accurate measurements. There are five possible sources of error: pressure transfer, leaks,
GAGE/ABSOLUTE TRANSMITTER
DIFFERENTIAL TRANSMITTER
Drain/Vent
Drain/Vent
Plug
1.75 (44) × 4
1.50 (38) × 4
1.75 (44) × 4
1.50 (38) × 4
Note
Dimensions are in inches (millimeters).
Drain/Vent
2.88 (73) × 4
TRANSMITTER WITH
FLANGE BOLTS
TRANSMITTER WITH
FLANGE ADAPTERS AND
FLANGE/ADAPTER BOLTS
Description
Qty
Size
in.
(mm)
Differential Pressure
Flange Bolts
4
1.75
(44)
Flange/Adapter Bolts
4
2.88
(73)
Gage/Absolute Pressure
(1)
(1) Rosemount 3051T transmitters are direct mount and do
not require bolts for process connection.
Flange Bolts
4
1.75
(44)
Flange/Adapter Bolts
2
2.88
(73)
Note
Dimensions are in inches (millimeters).
1.75 (44) × 4