SM-P00077-A/3
2. INSTALLATION
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2020-04-15
2.4.2
Seal material
Apply a seal tape or seal material to the screw threads leaving two or more threads at the pipe end
uncovered or uncoated. If the pipe end is fully covered or coated, a shred of seal tape or residue of seal
material may enter inside of the solenoid valve and cause a failure.
When using a seal tape, wind it around the screw threads in the direction opposite from the screw
threads and press it down with your fingers to attach it firmly.
When using a liquid seal material, be careful not to apply it to resin parts. The resin parts can become
damaged and this may lead to a failure or malfunction.
Also, do not apply seal material to the internal threads.
2.4.3
Flushing
Before piping, flush the pipes/tubes, solenoid valves, and connected devices to remove foreign matters.
2.4.4
M5 fitting
M5 fitting is sealed using a gasket. Do not retighten when pressure is applied in the pneumatic circuit.
Design and construct the piping system in such a way that the valves can be removed and remounted in
case of trouble.
2.4.5
Blow circuit
With the internal pilot type, do not open the supply port to the atmosphere because a drop in the supply
pressure may cause malfunction. Select the external pilot type. The lowest allowable pressure with the
internal pilot type design is 0.2 MPa.
2.4.6
Exhaust port
Blocking the flow of exhaust air causes a delay in the cylinder response. If such delay occurs, adjust the
speed between the cylinder and solenoid valve.
2.4.7
Piping connection
◼
Appropriate tube
For solenoid valves provided with push-in fitting, use tubes specified by CKD.
• Soft nylon tubes (F-1500 Series)
• Urethane tubes (U-9500 Series)
* For ø1.8 push-in fitting (C18), use UP-9402 (urethane).
Seal tape
Seal material (solid or liquid)
Correct
Correct
Incorrect
Incorrect
Leave
two threads
