Impulse Piping - Emerson Rosemount 2088 Reference Manual

Section 3: Hardware Installation
March 2014
316
KM
3.4.2

Impulse piping

Mounting requirements
Impulse piping configurations depend on specific measurement conditions. Refer to
on page 35
tions:
Liquid measurement



Gas measurement


Steam measurement



Note
For steam or other elevated temperature services, it is important that temperatures at the
process connection do not exceed the transmitter's process temperature limits.
34
Carbon Steel (CS) Head Markings
B7M
660
B8M
F593_*
CL A
Alloy K-500 Head Marking
through Figure 3-4 on page 35
Place taps to the side of the line to prevent sediment deposits on the transmitter's
process isolator.
Mount the transmitter beside or below the taps so gases can vent into the process line.
Mount drain/vent valve upward to allow gases to vent.
Place tap in the top or side of the line.
Mount the transmitter beside or above the tap so liquid will drain into the process line.
Place tap to the side of the line.
Mount the transmitter below the taps to ensure that the impulse piping will stay filled
with condensate.
In steam service above 250 °F (121 °C), fill impulse line with water to prevent steam
from contacting the transmitter directly and to ensure accurate measurement start-up.
Stainless Steel (SST) Head Markings
*The last digit in the F593_ head marking may be
any letter between A and M.
for examples of the following mounting configura-
Reference Manual
00809-0100-4108, Rev BA
Figure 3-2
Hardware installation