ACTUATECH GD08 Instruction Manual - Page 7
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INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD08
4. SAFETY NOTICE
- The actuator should be used within the pressure mentioned limits only, operating the actuator over the pressure limit will damage
the internal actuator parts.
- Operating the actuator over or under the temperature limits will damage the internal and external parts.
- Operating the actuator in corrosive environments without the required external protection will damage the actuator.
- Before installation, service or maintenance verify that the actuator is not pressurised, disconnect the air lines and make sure that
the air ports are vented
- Do not remove the end caps while the actuator is installed in the line, or while the actuator is under pressure.
- Before mounting the actuator onto the valve make sure that the valve rotation is according with the actuator operating rotation, and
the upper shaft slot orientation is also correct.
- Before installing the actuated valve do cycling test for a wile to ensure the correct mechanical mounting and actuator/valve opera-
tions.
- The actuator installation shall be done according to and in observance with the local and national laws regulation.
- ACTUATECH S.p.A can not be responsible for any damage to people, animals or things due to an improper use of the
product.
5. INSTALLATION INSTRUCTION
The principle of the actuator application is to open and close the connected part turn valve installed in a plant, without the manual
operation, by remote control by means of an electric-pneumatic connection.
The normal sizing of actuators requires a 20%-30% safety margin over the valve breakaway torque to handle valves. Plant design,
chemical and physical flow characteristics and environmental condition could increase the safety factor to apply to actuator sizing.
Before performing any installation operation, verify the actuator and valve conditions according to the safety notice above described.
Moreover, the utmost clearness is required during valve installation of the air supply connection to the actuator. All the connection
parts such as reductions, joints, plates, brackets and equipment must be clean and dirty free.
Before assembling the actuator onto the valve make sure that both items are correctly oriented, depending upon which direction of
rotation is required.
- Before starting the actuator installation, should be done a visual actuator control to verify its physical condition after transportation
and storage.
- Control trough the shaft slot or caps the actuator position
- Read carefully the ACTUATECH instruction sheet included in the cardboard box
- Read the actuator limits and performances marked on the actuator body to verify its suitability
- Remove the protection label stickers from the ports
- Before fitting the actuator on the valve, clean the valve and the actuator from the dust and dirt.
- Verify the valve position, close or open, and the rotation direction.
Valve/Actuator assembly:
a) Direct mounting.
Valve actuator Direct mounting is the best solution to avoid plays between valve stem and actuator drive shaft. For a direct mounting
you should have the same standard flange connection on valve and actuator as well as the valve stem dimensions that fit perfectly
with the actuator drive. Before installation please verify that the actuator and valve flange ISO connections are the same size; verify
that the valve stem size and shape is suitable for direct mounting, if necessary, use a drive reduction.
Fit the valve stem into the actuator drive shaft connection, and bolt together the two ISO flanges.
b) Mounting plate connection.
In case direct mounting is not possible cause of little differences in actuator/valve flanges or drives sizes, mounting plates adapters
with suitable flanges dimensions allows an easy connection living a sufficient space for the valve/actuator drive adapter.
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy •
Ph.
+39 030 8908142 •
Fax
+39 030 8908143 • [email protected] •
www.actuatech.com
7
EN -
Rif. MAN80938 - 02/22