Yokogawa YVP110 - Manual (Page 25)

<3. Installing YVP110 on Actuator>
3-1
IM 21B04C01-01E
3. Installing YVP110 on Actuator
3.1 General
For installation of a YVP110, see Section 1.4,
“Choosing the Installation Location.” For the
ambient, environmental conditions required
for installation, see Chapter 7, “General
Specifications.”
WARNING
To avoid injury or the process being affected
when installing or replacing a positioner on a
control valve, ensure that:
• All inputs to the valve actuator and other
accessories of the valve and actuator,
including the air supply and electric signal,
are cut off.
• The process has been shut down or the
control valve is isolated from the process by
using bypass valves or the like.
• No pressure remains in the valve actuator.
3.2 Installing YVP110 on
Actuator
A YVP110 can be installed on a valve actuator with
a mounting bracket. Prepare the bracket and clamp
which are necessary to install the valve, according
to the valve. In general, the installation method is
determined by the combination of the control valve
and positioner as well as by the valve manufacturer
who performs the adjustment. For details, consult
the control valve manufacturer.
Required Tools: To install a YVP110, you need to
prepare:
• Nominal 13-mm open end or box end wrench
for M8 bolts used to fix the mounting bracket to
the positioner.
• Nominal 10-mm open end or box end wrench
for M6 bolt used to fix the feedback lever to the
shaft.
3.2.1 Installing YVP110 on Linear-motion
Control Valve
The following shows the general installation
procedure when assembling a YVP110 with a
linear-motion control valve (e.g., a globe valve)
combined with a diaphragm actuator or cylinder
actuator. Note that the most suitable procedure
may differ depending on the shapes of the bracket
and valve actuator, and the structure of the
mounting position.
F0301.ai
Figure 3.1 YVP Installed on Linear-motion Valve/
Actuator
(1) Fixing Bracket to YVP110
Use the four M8 bolts that come with the
YVP110 to tightly fix the mounting bracket to
the YVP110. (See “Part Names” on page 2.1)
The installation method is determined by the
combination of the control valve and positioner
as well as by the valve manufacturer who
performs the adjustment. For details, consult
the control valve manufacturer.