AB-6208-U
5
Installation location
CAUTION
Do not install the product nearby a steam coil, pressurized hot-water coil, or any high heat source. High temperature
radiation might cause malfunction of its actuator.
Do not use the product in an atmosphere corrosive to the actuator, valve, and their components. Doing so might
damage the product.
●
Install the valve assembled with the actuator in a position allowing easy access for maintenance and inspection. Fig. 1
shows the minimum clearance for maintenance and inspection. When installing the valve and actuator in a ceiling space,
provide an access panel within the 20” (50 cm) radius of the valve and actuator. And, place a drain pan under the valve.
●
Do not mount the valve on a pipe where water hammer occurs, or where solid objects including slug may accumulate.
Mounting position
The valve (assembled with the actuator) can be mounted in any position ranging from upright to sideways (90
tilted). The valve
should be installed with its actuator vertically positioned above the valve body. However, the valve must be installed always in
upright position outdoors.
Figure 4. Mounting positions of the valve
Piping
●
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 valve to pipes, do not allow any object, such as chips, to get inside a pipe or valve. Valve cannot fully
closes, or the valve seat may get damaged causing fluid leakage, due to an foreign 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. Valve cannot fully closes, or the valve seat may get damaged causing fluid leakage,
due to the sealing material jammed inside the valve.
●
When connecting the valve to pipes, hold the valve body (where a pipe is screwed) with a tool such as a wrench, and screw
the pipe into the valve. (See Fig. 5.) Do not apply excessive torque to the pipe. Refer to the table in Fig. 5 for the
recommended torque.
Figure 5. Valve connection to a pipe
●
Before activating the valve and actuator, flush the pipes (with the valve and actuator installed) at the maximum flow rate to
remove all the foreign substances. Fully open (in 100 % position) the valve to flush. (Factory preset position: 100 %)
Correct examples
Incorrect examples
Recommended torque to screw into the pipe
Valve size
1/2”
3/4”
1”
1
1
/
4
”
1
1
/
2
”
Max. torque
in-lbs (N
m)
360
(40)
540
(60)
890
(100)
1070
(120)
1340
(150)
Incorrect
holding position
Correct holding
position
Torque
