Onicon FT-3500 - Mechanical Installation Guidelines

FT
-
3500 ELECTROMAGNETIC FLOW METER
ONICON Incorporated 727.447.6140 Page 16 onicon.com
Typically
30 - 40"
depending on
pipe size and
height of valve
assembly.
CLEARANCE
REQUIRED
FOR INSTALLATION
Minimum Hole Size = 1"
Must be centered
Dry Tap Installation
Kit for Steel Pipe
1" Full port ball valve
1" Close nipple
1" Branch outlet
1¼" for
hot tap
NOTE: Use stainless steel or brass
close nipple only.
CAUTION
ONICON insertion style ow 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.
IMPORTANT NOTE
Flow meters installed through oversized access holes will be subjected to undesirable turbulence that may aect
the accuracy of the meter.
3.2 MECHANICAL INSTALLATION
ONICON Insertion Electromagnetic Flow Meters employ a hot tap adapter design that allows for insertion and removal,
when necessary, without interrupting ow and draining the pipe. To take advantage of this feature, the ow meter must
be installed through an isolation valve. The installation must allow for sucient 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
ttings are full port and at least 1” in actual internal diameter.