Rif. UMA800081C - 06/22
IT
EN
EN -
8
OMAL S.p.A.
Headquarters
: Via Ponte Nuovo, 11 - 25050 Rodengo Saiano (BS) Italy •
Production Site:
Via Brognolo, 12 - 25050 Passirano (BS) Italy
Ph.
+39 030 8900145 •
Fax
+39 030 8900423 • [email protected] •
www.omal.com
INSTRUCTION MANUAL
AGO: SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
DA2880 - DA8000 - SR1440 - SR4000
TYPICAL CONNECTION LAYOUT
Actuator positioning and rotation direction
The positioning and the rotation direction of the actuator, to ensure a maximum opening torque, must be in conformity with the stan-
dard EN 15714-3 point 4.5.4 and the valve coupling according to the EN ISO 5211standard.
4) SAFETY INFORMATION
- The actuator must be used within the specified pressure limits; operation beyond these limits may damage the internal parts of the
actuator.
- The actuator operation out of the range of temperatures indicated could damage its internal or external parts.
- Using the actuator, without the due external protection, may damage it in corrosive environments.
- Before the installation, repair or maintenance be sure that the actuator is not pressurized, disconnect the air lines and verify that they
have vented.
- Do not remove the caps when the actuator is installed online or while it’s still pressurized.
- Do not remove the spring cap, this operation may be carried out by qualified personnel only; such operation could cause personal
injuries.
- Before installing the actuator on the valve be sure that the rotation of one is in phase with the rotation of the other and that the shaft
slit position is correct.
- Before installing the actuated valve, carry out a few dry cycles in order to check the proper fitting between valve and actuator.
- Carry out the installation in compliance with the national local regulations and laws.
- Before installing a pneumatic actuator bearing the marking
in accordance with EX regulations, carefully read the additional
instructions, supplied together with the product, regarding the use in explosive atmospheres.
5) INSTALLATION INSTRUCTIONS
The installation of an actuator allows to open and close a valve, which is installed in a system, without manual operation, by means of
an electric-pneumatic remote control.
The normal sizing of the actuators requires to consider an appropriate safety margin for the breakaway torque which is necessary for
the valve to operate properly. The plant project, physical or chemical characteristics of the fluids, special environmental conditions,
may require an increase of the safety factor to be applied to the sizing.
