Seametrics TX100-200-SERIES v.1 - 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 fe-
male 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 compres-
sion 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 instructions that follow).
Caution: Do not allow the meter to fall into the pipe uncontrolled, as this
may damage the meter. 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 removes
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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