2
YarwaY
Operating and Safety inStructiOnS
Pneumatic actuator
neither emerson, emerson automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.
responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
yarway is a mark owned by one of the companies in the emerson automation Solutions business unit of emerson electric co. emerson automation Solutions, emerson
and the emerson logo are trademarks and service marks of emerson electric co. all other marks are the property of their respective owners.
the contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. all sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.
emerson.com/finalcontrol
Note
pda* = pneumatic diaphragm actuator
iOM** = installation, Operation and Maintenance
Manual
FINal INSpeCtIoN
yarway pda's* have been tested, degreased,
dried and prepared according to service
application. this should be carried out in
accordance with the relevant iOM** and
available by: emerson B.V., yarway, via our
website: emerson.com/finalcontrol
State oF DelIVerY / StoraGe /
SeleCtIoN / SerVICe lIFe
State of delivery
yarway’s pda's* are delivered with protection
and tested to 9.0 bar. particular care should
be exercised when removing the pda* from
its packaging and your special attention is
required to check carefully that no damage
has occurred to the actuator, accessories,
piping and fittings before installation. check
out iOM** - instructions before proceeding.
Storage
for short term storage, up to 6 months, no
additional preservation is necessary. retain
the pda in its original packaging in a clean,
dry indoor location. for long term storage, use
only a dry indoor location. follow instructions
given in the iOM** before placing the pda
into service, inspect all components to
ensure correct functioning.
Spare partS
use only genuine yarway components.
all pda's* are identified by an identification
number, stamped on the identification plate.
use this number when ordering spare parts.
Selection
Be certain that the diaphragm casing
pressure does not exceed the limits listed
in the specification table and identification
plate. if in doubt, contact yarway or your
local representative.
Model: 20-55 (stroke 55 mm) and
Model: 20-90 (stroke 90 mm)
Service life
expected service life may vary upon condition of
service. check unit at least once per 8000 hours
or longer intervals based upon site experience.
