Seametrics TX100-200-SERIES v.2 - Manual (Page 7)

INSTallaTION
Page 5
TX101/201 INSTallaTION
fitting Installation. TX101/201 sensors come with a 1-1/2” male
NPT pipe thread adapter fitting. Any fitting that provides the matching
NPT female thread may be used. Installation procedure compensates
for fitting height differences. Cut a minimum 1-3/4” hole in the pipe.
If possible, measure the wall thickness and write it down for use in
depth setting. Then install the threaded fitting (saddle, weldolet,
etc.) on the pipe.
Meter Installation. Loosen the compression nut so that the adapter
slides freely. Pull the meter fully upward and finger-tighten the com-
pression nut. Using a thread sealant, install the adapter in the pipe
fitting. Do not overtighten. Now loosen the compression nut, lower
the meter to the appropriate depth setting (see diagram and instruc-
tions that follow). Be sure flow is in the direction of the arrow on the
housing. Tighten compression nut fully.
TX115/215 INSTallaTION
‘Hot tap’ TX meters are designed to be installed and serviced without
depressurizing the pipe.
fitting Installation. The TX115/215 sensors have a 2” NPT thread
for compatibility with the 2” isolation valve. Any fitting that provides
matching NPT female thread may be used. The installation procedure
compensates for differences in fitting height.
If initial installation is performed on an unpressurized pipe, cut a
minimum 1-3/4” hole in the pipe. If possible, measure the wall
thickness and write it down for use in depth setting. Then install the
threaded fitting (saddle, weldolet, etc.) on the pipe.
If it is necessary to do the initial installation under pressure, any
standard hot tap drilling machine with 2” NPT adapter, such as a
Transmate or a Mueller, can be used. Ordinarily, it is not necessary
to use an installation tool, since the small-diameter tube can be
controlled by hand at all but the highest pressures.
Meter Installation. Remove the sensor unit from the valve assembly.
Using a thread sealant, install the valve assembly on the pipe fitting.
If the initial installation is a pressure (“hot”) tap, remove the 1-1/2”
x 2” adapter bushing at the back of the valve. Thread the tapping
machine on, open the valve, and tap using a minimum of 1-3/4” or
maximum 1-7/8” cutter. After retracting the machine and closing the
valve, reinstall the flow sensor. When the sensor is secure, open
the valve and adjust depth setting (see diagram and instructions that
follow). Be sure flow is in the direction of the arrow on the housing.
Tighten locking collar and compression nut fully.
Compression nut
Adapter fitting
with
standard 1-1/2"
NPT threads
Compression
nut
2” adapter re-
moves to mount
hot-tap machine
Full-port 2” ball
valve allows sensor
removal
Standard 2”
NPT threads
TX115/215 Sensor
Removal
Locking collar
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