AB-7350-U
13
Mounting position
Model FVY5137J can be mounted in any position ranging from upright to sideways (90
tilted). Note that Model FVY5137J must
be installed with the valve sensor vertically positioned above the valve body when being tilted. It is also installable on the vertical
upflow pipe. (See Fig. 5.) However, Model FVY5137J must be installed always in upright position outdoors.
Do not mount Model FVY5137J; with its actuator vertically below the valve, on a vertical downflow pipe, or with the valve sensor
facing downward.
Correct mounting positions
Incorrect mounting positions
Figure 5. Examples of correct and incorrect mounting positions
Piping
IMPORTANT:
Do not put force on the valve sensor or its cable to prevent failure.
Check that the model number of the product is what you ordered. The model number is shown on the label attached to the
yoke.
Install a bypass pipe and gate valves on the inflow, outflow, and bypass sides. Also, install a strainer with 40 or more
meshes on the inflow side.
When installing the product to the pipes, do not allow any object, such as chips, to get inside a pipe or the valve. The valve
cannot fully close, or the valve seat may get damaged causing fluid leakage, due to an object jammed inside the valve.
When piping, do not apply too much sealing material, such as solidifying liquid and tape, to the pipe connection sections so
that these materials flow into the valve. The valve cannot fully close, or the valve seat may get damaged causing fluid
leakage, due to the sealing material jammed inside the valve.
Before activating the product, fully open (in 100 % position) the valve and flush the pipes (with the product installed) at the
maximum flow rate to remove all the foreign objects. (Factory preset position: 100 %)
Heat insulation
Apply heat insulation to the valve, as
and
shown in Fig. 2. Do not apply it to the yoke or the actuator. If the heat
insulation is inappropriate, temperature measuring accuracy may decrease. If the yoke and/or the actuator are covered with
insulation material, the pointer cannot be checked or may be distorted.
When cutting the insulation material that covers the valve, be sure not to damage the valve sensor cable.
Upright Upflow
90
tilted
(Valve sensor faces upward.)
Flow
direction
Flow direction
Flow direction
Valve sensor
Upside down
(Actuator vertically below the valve.)
Downflow 90
tilted
(Valve sensor faces downward.)
Flow
direction
Flow direction
Flow direction
