DynaQuip AP Serie Manual página 2

DynaQuip Pneumatic Actuator
Engineering Manual
The actuator is designed for pneumatic operation with max-
imum air pressure of 150 PSIG ( 10.34 bar) and a tempera-
ture range of -10° to +195° F. The use of filtered and lubri-
cated air is recommended.
DO NOT APPLY ELECTRIC OR PNEUMATIC POWER
UNLESS UNIT IS FULLY ASSEMBLED AND MOUNTED.
ALWAYS DISCONNECT ELECTRICAL AND PNEUMATIC
POWER SOURCES AND RELIEVE PRESSURE IN THE
SYSTEM BEFORE WORKING ON THIS UNIT.
IT IS RECOMMENDED THAT EYE PROTECTION BE
WORN WHILE SERVICING THE SYSTEM.
FAILURE TO COMPLY WITH ABOVE WARNINGS COULD
RESULT IN PERSONAL INJURY AND/OR DAMAGE TO
THE UNIT.
MOUNT SOLENOID IN POSITION SHOWN. USE THE
TWO MOUNTING HOLES NOTED TO ALIGN
O-RINGS AND SOLENOID TO THE ACTUATOR
Operation
Pressurizing port "A" will cause a counter-clockwise rota-
tion of the shaft and position indicator. For double acting
models, a clock-wise rotation is obtained by pressurizing
port "B" and venting port "A". For spring return models, a
clockwise rotation is obtained by removing supply air and
venting port "A" only.
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AP SERIES Pneumatic Actuator Manual ver 2.a
WARNING
DynaQuip Controls
ACTUATORS EQUIPPED WITH
DYNAQUIP SOLENOID VALVES
Double Acting (Normally Closed Mounting)
Air is supplied to the 1/4" NPT port on the solenoid. When
electric power is applied to the solenoid, air is allowed to
enter the center chamber of the actuator, driving the pistons
outward, causing a counterclockwise rotation of the shaft.
Air in the end chambers is vented to atmosphere. The
actuator is in the open position.
When electric power is removed from the solenoid, supply
air is shifted to the end chambers, driving the pistons
inward, causing a clockwise rotation of the shaft. Air in the
center chamber is vented to atmosphere. The actuator is in
the closed position.
Spring Return (Fail-Safe Closed Mounting)
Air is supplied to the 1/4" NPT port on the solenoid. When
electric power is applied to the solenoid, air is allowed to
enter the center chamber of the actuator, driving the pistons
outward, compressing the springs in the end chambers and
causing a counter-clockwise rotation of the shaft. Air in the
end chambers is vented to atmosphere. The actuator is in
the open position.
When electric power is removed from the solenoid, supply
air is blocked and air in the center chamber is vented to
atmosphere. The compressed springs in the end chambers
extend, driving the pistons inward, causing a clockwise rota-
tion of the shaft. The valve is in the closed position.
Fail-Safe Features
When electrical failure occurs and the air supply is not
interupted, the solenoid on the double acting model will
cycle the actuator to the closed position.
Spring return model actuator will cycle to the closed posi-
tion in the event of electrical and/or air supply failure.
Valve being actuated can be mounted to the actuator in
such a way that the valve can either fail-safe open or
fail-safe closed.
Manual Override
In the event of air pressure failure, the DynaQuip actuator
may be cycled manually. This is done by removing the
position indicator and applying a wrench to the exposed
end of the shaft and turning it in the desired direction.
For manual operation, the air must be allowed to escape
from the actuator. This may require disconnecting air lines
at the actuator or solenoid inlet port.
800-545-3636 www.dynaquip.com