Owner manual

9
SERIES 2800 2800_IOM_REVA_1112
• Pipesmustbealignedsquarelywiththevalveateach
connection.
• Ifthevalvehasscrewedends,donotapplypipedopeto
the threads of the valve body or to the first two threads
of the pipe.
• Ifthevalvehasflangedends,tightenflange bolts
evenly to prevent excessive stress and the possibility of
cracking.
• Ifthevalvehasweldedends,preventplugandcage
distortion by keeping excess heat from the body.
• Thevalve,actuator,andaccessories(ifsoequipped)are
assembled, tested, and calibrated at the factory. The
actuator nameplate specifies set-up parameters used
(See Information Present on Control Valves section
for location of important information on valve). Do
not exceed the supply pressure listed on the actuator
nameplate or you will damage the valve and void the
warranty.
• Supplyairorvoltage,instrumentsignal,andaccessories
should be connected to ports or terminals as indicated
on t he control valve.
• Finaltuningmayberequiredunderactualoperating
conditions.
• Oncriticalordangerousequipment,providesuitable
safety and emergency systems to protect personnel and
property from injury due to a valve malfunction. If the
valve handles flammable, toxic, corrosive or explosive
fluids, provide for safety in the event of valve leakage or
malfunction.
• Donotobscureflowarrowplatesornameplateswith
paint. If flow arrow plates or nameplates will be covered
with insulation, it is recommended the information on the
plates be transcribed on the outside of the insulation in
the same location as the plate.
OPERATION
• Closeinletandoutletstop
valves.
• Checkthatvalveresponds
through rated travel in
relation to changes in
input signal. Rated travel
is shown by position of
travel indicator on valve
stem relative to travel
indicator on yoke.
• Forvalvesfittedwith
a handwheel, manually
operate valve using
handwheel through rated
travel to check freedom
of movement. Return
handwheeel to its standby
position.
• Placevalveinoperation.
For proper operation
in all applications,
control valves must
be piped properly.
If you need detailed
information, please
refer to the "Heat
Exchanger Bypass
Piping Applications"
document.