LINE INSTALLATION
All flanged COIN flow elements require a gasket between the process line connection and the mating flange . Make sure the
gaskets selected match the the size and rating of the COIN meter and the line flanges . Gasket material must be selected to
resist corrosive attack of the process .
Be sure that the gaskets are properly centered so that protrusion into the pipe opening is minimized before completing
the bolting process . 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 .
MPORTANT
I
Do not exceed the specified torque.
DIFFERENTIAL PRESSURE CONNECTIONS
The high pressure connection is always on the upstream side of the flow direction arrow and the Iow pressure connection
on the downstream side . Fittings used must be able to withstand the process temperature and pressure conditions as well as
provide proper corrosion resistance . Badger Meter offers three types of fittings, see
“Typical Pressure Port Configurations” on
. See to the appropriate transmitter manual for connections to the transmitter high and Iow ports .
When installing chemical tee seals, tighten cap screws uniformly in a “star” pattern to avoid localized stresses on the gaskets .
The ANSI flanged taps seals require a backup flange rated for the same type and class as the COIN element . Backup flanges
with bolts and nuts are generally offered as an option to the transmitter, and are not supplied with the COIN element . Again,
observe recommended torque specifications for the type and class being used .
Line Installation
Page 11
March 2016
DPM-UM-00519-EN-04
