- 9 -
4-5
．
Speed control
Be sure to control speed to open and close the gage in meter out condition.
Otherwise, the slit valve life will be adversely affected. Improper use of speed controls can damage
end-lock mechanism as well as shorten life time of valve.
4-6
．
Exhaust piping
Please avoid to be influenced exhaust pressure from other solenoid valves to the slit valve. Such a
pressure may cause improper operation of end lock of the gate.
4-7
．
Operation of valve
(1) Please confirm in regulated difference pressure as 4kPa and do the opening and shutting operation
when you open and shut the valve.
(2) Incase Body(Chamber) and Gate is heated and cooling gradually from High Temperature to Room
temperature then please make OPEN condition. If it is cooling at CLOSE condition then Gate O-ring
will be stuck and when operate to OPEN condition then gate O-ring will be removed.
(3) Please keep within operating pressure range to slit valve.
If operating pressure is over the range then cylinder will be damaged and injury by
broken pieces.
(4) Do not put your hand into the slit of the body without confirming safety.
Injury and Bodily harm will occur with the valve operated when valve is operated valve.
(5) Do not remove the Cover
（
Fig.1
○
29
）
on the actuating part. And if it is touched the
internal actuating parts while the slit valve is operating may result in injury.
(6) Remove the pneumatic piping for operation and make cylinder have no pressure inside for
maintenance otherwise cylinder is operating and makes dangerous. When tube is removed please shut
off the pressure and ensure that stored energy is removed. Otherwise tube is removed the tube will be
out of control and make loss of vision to employees or injury.
4-8
．
Replacement of O-ring
Use the parts shown on “4. Replacement parts list” when replacing bonnet assembly, Gate and O-rings
for a gate. Give sufficient cleaning to O-ring groove and mount O-ring in it so that it will not twist. Use a
plastic specific tool so as not to damage sealing faces of the O-ring groove. Refer to the maintenance
manual for details.
After replacement, please implement leak inspection.
4-9
．
Return of Product
If the product being returned is contaminated or possibly contaminated with substances that are harmful
to humans then please contact SMC in the first instance and get the product decontaminated and made
safe by a specialist cleaning company. After the decontamination prescribed in the sentence before,
submit Product Return Request Sheet or Detoxification/Decontamination certificate to SMC and await
return contact from SMC before returning the item to SMC.
Please refer to International Chemical Safety Cards (ICSC) for a list of the harmful substances.
If you have any questions, please contact your SMC sales representative.
Caution
Warning
Warning
