- 4 -
2. Specific Product Precautions
Warning
(1) Confirm the specifications.
Products represented in this catalog are designed
only for use in compressed air systems.
Do not operate at pressures, temperatures, etc.,
beyond the range of specifications, as this can cause
damage or malfunction.(Refer to the specifications.)
Please contact SMC when using a fluid other than
compressed air.
We do not guarantee against any damage if the
product is used outside of the specification range.
(2) Products mentioned in this catalog are not
designed for use as stop valves with zero air
leakage.
A certain amount of leakage is allowed in the
products
’ specifications. Tightening the needle to
reduce leakage to zero may result in equipment
damage.
(3) Do not disassemble the product or make
any
modifications,
including
additional
machining.
Doing so may cause human injury and/or injury an
accident.
(4) The flow rate characteristics for each
product are representative values.
The flow
rate characteristics are characteristics of
each individual product. Actual values may differ
depending on the piping, circuitry, pressure
conditions, etc. Also, depending on product
specifications, there may be variations in the zero
needle rotations position of the flow rate
characteristics.
(5) Check if PTFE can be used in the
application.
PTFE powder (Polytetrafluoroethylene resin) is
Included in the seal material of the male thread
type piping taper thread. Confirm that the use of it
will not cause any adverse effects on the system.
Please contact SMC if the Safety Data
Sheet (SDS) is required.
(6) Example of inapplicable circuits
Warning
(1) Operation Manual
Install the product and operate it only after reading
the operation manual carefully and understanding its
contents. Also, keep the manual where is can be
referred to as necessary.
(2) Ensure sufficient space for maintenance
activities.
When installing the products, allow access for
maintenance and inspection.
(3) Confirm that the lock nut is tightened.
A loose lock nut may cause speed changes in the
actuator.
(4) Check the number of opening and closing
rotations of the needle valve.
It is not possible to remove the needle valve
completely, over rotation will cause damage to the
product.
(5) Do not use tools, such as pliers, to rotate
the knob.
This can cause the idle rotation of the knob or
damage.
(6) Tighten threads with the proper tightening
torque.
When installing the products, follow the listed
torque specifications.
(7) Adjust the needle by opening the needle
slowly after having closed it completely.
Loose needle valves may cause unexpected
sudden actuator extension. When a needle valve is
turned clockwise, it is closed and cylinder speed
decreases. When a needle valve is turned
counterclockwise, it is open and cylinder speed
increases.
(8) Do not apply excessive force or shock to the
body with an impact tool.
This can cause damage or air leakage.
(9) To install/remove the flow control equipment,
use an appropriate wrench to tighten/loosen
the supplied nut on body B as close to the
thread as possible.
Do not apply torque at other points, as the product
may be damaged.
(10)
Design/ Selection
Mounting
