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GREYLINE Insertion Electromagnetic Flow Meters employ a hot tap adapter design that allows
for insertion and removal, when necessary, without interrupting flow and draining the pipe. To
take advantage of this feature, the flow meter must be installed through an isolation valve. The
installation must allow for sufficient overhead clearance to fully extract the meter, and a full 1”
opening in the pipe wall is required to clear the sensor head and allow for insertion. Make sure
that your valves and fittings are full port and at least 1” in actual internal diameter.
IMPORTANT NOTE
Flow meters installed through oversized access holes will be subjected to undesirable turbulence
that may affect the accuracy of the meter.
i
CAUTION
GREYLINE insertion style flow meters must be installed through a valve assembly. Failure to do
so negates the ability to remove the meter without shutting down and draining the system. It
will also result in an excessive amount of stem protruding from the pipe. Excessive stem lengths
unnecessarily expose the meter to incidental damage.
!
CLEARANCE
REQUIRED
FOR INSTALLATION
Typically
30" - 40"
depending on
pipe size and
height of valve
assembly.
Standard Installation
Kit for Steel Pipe
1" Full port ball valve
1" Close nipple
1¼" for
hot tap
1" Branch outlet
Minimum Hole Size = 1"
Must be centered
NOTE: Use stainless steel or brass
close nipple only.
3.2
MECHANICAL INSTALLATION
