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3.2.7
Installing the Flow Meter
Flush, fill and pressure test the piping system prior to installing the meter. Loosen
clamping nut to facilitate installation.
CAUTION
If there are any leaks around the clamping nut or stem, DO NOT ATTEMPT TO STOP THE
LEAKAGE BY OVERTIGHTENING THE CLAMPING NUT. Damage to this nut or the clamping
ring under the nut may prevent the assembly from properly holding the meter in the pipe. The
clamping nut is not part of the sealing mechanism. Any leaks in this area indicate that the “O”
ring is not sealing properly and you must contact GREYLINE for assistance.
!
Tools needed for standard installation:
•
1
5
/
16
” wrench or adjustable wrench
•
5
/
8
” wrench or small adjustable wrench
•
pipe wrench (to hold valve in place)
•
pipe thread sealant
WARNING
When you are ready to refill the system, make sure that all lines are filled with water before
inserting the meter into the flow stream. If the lines are not filled and this is a hot water
system, some water may flash to steam and exceed the high temperature limit for the sensor
head assembly. This flash over could also exceed the pressure ratings of the meter and the
assembly could fail allowing steam and hot water to escape causing serious injury.
!
