User Manual

28
5. Installation
5.6 Air Purge for Splash-Proof Type
By supplying dry, compressed air into the actuator, it performs dust proof and splash proof (water and
dust) of IP65
*1
.
Instruction below shows how to perform air purge.
Air purge is performed with using the quick joint (O.D.
I
6) on the rear cover. Supply air from the upper
joint.
The lower quick joint is used as a drain joint (a hole to withdraw water) in the case that water gets inside
the actuator. Connect a
I
6 air tube and take it to a place where no water or dust gets in to withdraw
water.
1. Actuator Air Pressure … 0.1MPa to 0.2MPa(approx. 1kgf/cm
2
to 2kgf/cm
2
)
2. Air Flow … Approx.20 to 40Nl/min
3. Applied Air … Do not supply air directly from a compressor. Make sure to supply dry compressed air
via an air drier.
Air to supply should not contain compressor oil and should be clean dry air that has
SDVVHGWKHDLU¿OWHUZLWKWKH¿OWUDWLRQRIȝPPD[DQGWKDWLVGULHGLQDWPRVSKHULF
dew point of -20°C max.
*1<Explanation of IP 65 (JIS C 0920)>
Primary Characteristic No.1 Protection Level to Outer Solid Body
6
No dust gets inside
Primary Characteristic No.2 Protection Level to Water Penetration
5
1RKDUPIXOLQÀXHQFHLVRFFXUUHGE\ZDWHU
splashed from any angle.
,QWKHVWDQGDUGLWLVVSHFL¿HGWKHSUHVVXUHRI
splash water is 30KPa (30KN/m
2
, 0.3kgf/cm
2
),
splash speed is 12.2L/min and duration is for
3min.

Air Supply Joint

Drain Joint