Warren Controls 3800 Series E-BALL ROTARY CONTROL VALVES - Manual (Page 9)

9 Series 3800 3800_IOM_RevB_0513
• The valve must be installed with the fluid flowing in the
correct direction. For proper operation in all applica-
tions, control valves must be piped according to the cor-
responding flow arrow present on each valve (See Infor-
mation Present on Control Valves section for location of
important information on valve). Pipes must be aligned
squarely with the valve at each connection.
• Tighten flange bolts evenly to prevent excessive stress
and the possibility of uneven sealing.
• The valve, actuator, and accessories (if so equipped) are
assembled, tested, and calibrated at the factory. The
actuator serial number label 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 serial number
label or you will damage the valve and void the warranty.
• Supply air, instrument signal, and accessories should be
connected to ports or terminals as indicated on the con-
trol valve.
• Final tuning may be required under actual operating con-
ditions.
• 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 serial number labels
with paint. If flow arrow plates will be covered with insu-
lation, it is recommended the information on the plates
be transcribed on the outside of the insulation in the
same location as the plate.
• 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 top of
actuator.
• For valves fitted with
handwheel, manually
operate valve through
rated travel to check
freedom of movement.
Return handwheel to its
standby position.
• Place valve in operation.
OPERATION