Rif. UMA800081C - 06/22
IT
EN
EN -
9
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
To lift the actuator without damaging it, see the below image.
Use only belts with 400kg minimum load
Bracing points designed for lifting the
actuator only
Prior to installation verify that valve and actuator comply with the safety standards described above. Utmost cleanliness is required
when connecting the air supply to the actuator. All parts of the plant, reductions, joints, plates, brackets and equipment must be thorou-
ghly cleaned. Before mounting the actuator on the valve be sure that both elements are correctly oriented, depending on the rotation
direction needed.
- Before installation, visually check that the conditions of the actuator are good, since it’s been transported and stored.
- Carefully read the OMAL S.p.A. instructions contained in the cardboard box.
- Verify performance and limits found on the actuator body to see whether if it’s suitable for the application or not.
- Remove the plastic protective covers from the ports and insert whichever filters as pointed out in paragraph 2.
- Prior to mounting the actuator on the valve, clean both from dust and dirt.
- Verify the valve position, closed or open, and the rotation direction.
- Verify the actuator position and the rotation direction based on the valve, especially for the installation of the SR version “normally
closed” and “normally open”.
- The SR versions “normally closed” are always supplied in the closed position.
The SR versions “normally open” are always supplied in the open position.
Assembly of Valve/Actuator:
A) DIRECT INSTALLATION
The direct installation of valve and actuator is the best way in order to avoid backlash between the valve stem and the actuator shaft.
For direct installation, there should be the same standard flange connection both on the valve and on the actuator, and the dimen-
sions of the valve stem should fit perfectly with those of the actuator shaft. Before installation, please check that the actuator and the
valve both have ISO flanges of the same size, also check that the dimensions of the valve stem and its shape are suitable for direct
mounting: use a reduction if necessary.
Mount the valve stem in the housing on the actuator shaft and bolt the two ISO flanges together.
