AB-6526
11
Installation
WARNING
When handling or transporting any heavy
product (more than 18 kg), carefully move
the product with a handtruck or the like, or
with 2 or more people.
Careless lifting or accidental dropping of
the product may result in injury or product
damage.
Before removing the actuator, fully close the
valve.
If you try to remove the actuator without fully
closing the valve, the actuator may suddenly
rotate and cause an injury.
CAUTION
Do not freeze this product.
Doing so may damage the valve body and
cause leakage.
When piping this product, be sure there is no
foreign matter in the pipes.
If foreign matter remains in the pipes, the
product may break down.
Install, wire, and use this product under the
conditions specified by this manual.
Failure to do so may cause fire or device
failure.
Use full face gaskets for flat face flanges.
Failure to do so may damage the flanges or
cause leakage outside of the valve.
z
Precautions for installation
Observe the following cautions in order to avoid
failure of this product.
•
Do not strike or jar this product.
•
Be sure there is no foreign matter in the pipes.
Observe the following instructions to remove
foreign matter.
•
Install a strainer on the upstream side of the
product.
For chilled/hot water: 40 or more mesh
For steam: 80 or more mesh
•
If the strainer cannot be installed just before the
inlet of each valve, install it on the pipe diverting
sections for each piping group.
•
Do not install this product near a steam coil, hot-
water
coil,
etc.
High-temperature radiant heat may cause failure of
the actuator.
•
Avoid connecting the product to piping where water
hammer may occur or slag, etc. easily collects.
•
Install the product so as not to remain drainage in
the
piping.
If there is a risk of drainage, provide a trap.
If drainage remains in the piping, water hammer
(or steam hammer) may occur, and valves or
piping may corrode.
IMPORTANT
•
When the product is used for steam humidifying,
install a valve interlocking with air-conditioning unit on
the inflow side in case the product gets damaged.
In addition, observe the following cautions.
•
Install a bypass pipe and gate valves on the inflow,
outflow, and bypass sides.
•
Install the product so that maintenance and
inspection can be done easily.
Refer to ■ "Dimensions."
•
When installing the product in the ceiling, provide a
trapdoor within 50 cm around the valve. And, place
a drain pan under the valve.
z
Mounting position
Install the product so that fluid flows in the direction
pointed by the arrow on the body. It can be mounted
in any position ranging from upright to sideways (90°
tilted) .
Note: If the product is installed outdoors, place it in upright position.
Upright
Sideways
Figuar 4 Correct mounting
Actuator is below the valve.
Figuar 5 Incorrect mounting
