Ball valve installation, Figure 6, Sealing thread cutting for the fitting body – Vaisala MM70 User Manual
Page 19
Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS
0605-083
Figure 6
Sealing Thread Cutting for the Fitting Body
CAUTION
In pressurized processed it is essential to tighten the supporting nuts
and screws very carefully to prevent loosening of the probe by the
action of pressure
CAUTION
Take care not to damage the probe body. A damaged body makes the
probe head less tight and may prevent it from going through the clasp
nut.
Ball Valve Installation
The ball valve installation is preferred when connecting the probe to a
pressurized process or pipeline. Use the Vaisala BALLVALVE-1 ball
valve set or a 1/2" ball valve assembly with a ball hole of 14 mm or
more. If you install the sensor head ( 12 mm) in a process pipe, please
note that the nominal size of the pipe must be at least 1 inch (2.54
cm). Use the manual press tool to press the sensor head into the
pressurized (< 10 bar) process or pipeline.
1.
Shut down the process if the process pressure is more than 10
bars. If the pressure is lower there is no need to shut down the
process.
2.
Make the installation according to the figure below. Install the
sensor head transversely against the direction of the process
flow.
VAISALA _______________________________________________________________________ 17