AB-7356-U
8
Installation
Precautions for installation
WARNING
Some of the product models weigh more than 40 lb (18.1 kg). Carefully move the product with a vehicle or enough
manpower in an appropriate manner. Careless lift or accidental drop of the product might cause injury or product
damage.
CAUTION
For installation, do not mount the valve in an improper position or overtighten the bolts on the flange. Doing so
might damage the product.
After installation, make sure no fluid leaks from the valve-pipe connections. Incorrect installation might cause fluid
leakage.
Keep the products in package for storage. Failure to do so might damage or stain the products.
Install the product so that no foreign objects remains inside the pipes. Be sure to provide a strainer (with 40 or more
meshes) 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.
Installation and wiring must be performed by qualified personnel in accordance with all applicable safety
standards.
ACTIVAL Model VY54X0F is the valve and actuator integrated into a single unit. Do not combine the valve with any other
actuator, or do not combine the actuator with any other valve.
To remove foreign substances inside the pipes, install a strainer (with 40 or more meshes) 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).
The arrow indicated on the valve body (port A/port B
port AB) is the flow direction of the process fluid for mixing use. This
product also can be installed for diverting use (port AB
port A/port B).
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.
IMPORTANT:
The top and the terminal covers might be corroded by some chemical and organic solvent/vapor. Do not clean
the ACTIVAL using such substances, or do not expose the ACTIVAL to such substances.
Although the ACTIVAL can be used in high humidity environments (max. 95 % RH), do not immerse the
actuator in water.
Although the ACTIVAL can also be used outdoors, be sure not to expose the ACTIVAL to direct sunlight.
Install the ACTIVAL in a position allowing easy access for maintenance and inspection. Fig 6 shows the minimum clearance
for maintenance and inspection.
When installing the ACTIVAL in a ceiling space, provide an access hole within 20" (50.8 cm) radius of the ACTIVAL.
Place a drain pan under the valve.
Do not mount the ACTIVAL on a pipe where water hammer occurs, or where solid objects including slug may accumulate.