Warren Controls 2900 Series High Capacity general purpose Globe Valves - Manual (Page 10)

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2600 Emrick Blvd • Bethlehem, PA 18020 • USA •800-922-0085 • www.warrencontrols.com
• 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 the 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.