Rif. UMA800081C - 06/22
IT
EN
EN -
32
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
10) TROUBLESHOOTING
POTENTIAL EFFECT OF FAILURE
POTENTIAL CAUSE OF FAILURE
SOLUTION
Loss or reduction of the supplied
torque
Lack of supply
Verify that the actuator has been
connected correctly
Air supply not enough to produce the
required torque
Verify that the supply pressure value
corresponds to the functioning
requirements (See actuator data plate).
Air leakage from the seals
Verify that the screws are completely
tightened
Leaks from the stem upper or lower
seals
Stem O-ring seal damaged
Contact OMAL S.p.A. for repair
Damages on the body
Shaft damaged
Leakage from cylinder caps
Seals damaged
Replace the seals
(see “Maintenance” chapter)
Leakage from the ports after maneuver
Piston seal damaged
Replace the piston seals
(see “Maintenance” chapter)
Cylinder body damaged
Contact OMAL S.p.A. for repair
Insufficient rotation angle
Increase of valve maneuver torque
Verify the valve release torque and
possibly replace with a new one
Air supply not enough to produce the
required torque
Increase the air supply
Mechanical stop (if there) not duly adjusted
Adjust the stops by increasing the stroke
Wrong connection between the actuator
hole and the valve stem
Check the connection and the size of
the adapter between the valve and the
actuator
11) DISPOSAL OF PRODUCTS AT THE END OF THEIR LIFE CYCLE
The OMAL products are designed so that when they are at the end of their life cycle they can be completely disassembled, sepa-
rating the different materials for the proper disposal and/or recovery. All materials have been selected in order to ensure minimal
environmental impact, health and safety of personnel during their installation and maintenance, provided that, during use, they are not
contaminated by hazardous substances.
The personnel in charge of the product disposal/recovery, must be qualified and equipped with appropriate personal protective
equipment (PPE), according to the product size and the type of service for which the device was intended. The management of waste
generated during the installation, maintenance or due to the product disposal, is governed by the rules in force in the country where
the product is installed, in any case, the following are general guidelines:
- The metal components (aluminum/steel) can be restored as raw material;
- Seals/sealing elements (PTFE, PEEK, NBR, EPDM, FKM ...), as contaminated by fluids from other materials and lubrication, must
be disposed of.
- The packaging materials that come with the product, should be transferred to the differentiated collection system available in the
country.
