AB-6209-U
4
Installation
Precautions for installation
CAUTION
Install and use this product under the operating conditions (for temperature, humidity, power, vibration, shock,
mounting direction, atmosphere, etc.) listed in the specifications. Failure to do so might cause fire or device failure.
Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.
Do not use the product in an atmosphere corrosive to the actuator, valve, and their components. Doing so might
damage the product.
For installation, do not mount the valve in an improper position or overtighten the threaded connections. Doing so
might damage the product.
Do not excessively screw a pipe into the valve. Doing so might damage or deform the inside of the valve causing
leakage and malfunction.
Install the product so that no foreign objects remains inside the pipes. Be sure to provide a strainer on the inflow side
of the piping. Flush the piping to remove the foreign objects after installation. Foreign objects inside the piping might
damage the product.
After installation, make sure no fluid leaks from the valve-pipe connections. Incorrect installation might cause fluid
leakage.
To remove foreign substances inside the pipes, install a strainer on the inflow side of each valve. In case that the strainers
cannot be installed on the inflow side of each valve, install it on the pipe diverting sections (sections diverting from main
piping system to sub piping system).
Install the valve so that the flow direction of process fluid agrees with the arrow indicated on the valve body.
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 ACTIVAL (valve and the assembled actuator) in a position allowing easy access for maintenance and inspection.
Fig. 1 shows the minimum clearance for maintenance and inspection. When installing the ACTIVAL in a ceiling space,
provide an access hole within the 20” (50 cm) radius of the ACTIVAL. 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.
Correct examples
Incorrect examples
