Badger Meter COIN-NW - Manual (Page 6)

WARNING:
Never exceed the maximum pressure or temperature recommended for the
measured process. Exceeding proper pressure or temperature ratings can
lead to personal injury or equipment damage. The process piping flanges
should be identical to those on the COIN meter. The process temperature
and pressure should never exceed that for which the element was de-
signed.
LINE INSTALLATION
All flanged COIN flow elements require a gasket between the process line con-
nection and the mating flange. Ensure the gaskets selected match the the size
and rating of the COIN meter and the line flanges. Gasket material must be se-
lected to resist corrosive attack of the process.
Before completing the bolting process, be sure that the gaskets are properly
centered so that protrusion into the pipe opening is minimized. Misalignment
may cause added flow turbulence, however performance affects are typically
minimal depending upon the application. Bolt the element in line with suitable
hardware using recommended bolt torques for the type and class rating of the
flanges.
Torque all models per ANSI flange ratings.
Tighten the flange bolts in a progressive “star” pattern to avoid localized stresses
on the gaskets.
DO NOT EXCEED SPECIFIED TORQUE!
DIFFERENTIAL PRESSURE CONNECTIONS
The high pressure connection is always on the upstream side of the flow direc-
tion arrow and the Iow pressure connection on the downstream side. Fittings
used must be able to withstand the process temperature and pressure condi-
tions as well as provide proper corrosion resistance. Preso offers three types of
fittings (See next page). Refer to the appropriate transmitter manual for connec-
tions to the transmitter high and Iow ports.