Warren Controls 2800 Series, Installation Instructions & Maintenance

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2600 Emrick Blvd • Bethlehem, PA 18020 • USA • 800-922-0085 • www.warrencontrols.com 2800_IOM_RevBa_1219
Series 2800 Precision Globe Control Valves are for the most part
maintenance free when properly selected and installed. Rebuild-
ing of these valves should not be necessary under normal operat-
ing conditions. For best operation follow installation guidelines (See
Installation section); maintain the fluid pressure, temperature, flow,
flowing differential pressure, and shut-off differential pressure within
the limits of the valve (See Series 2800 Product Specification for de-
tails). In installations where high vibration exists, pneumatic and/or
electrical connections should periodically be checked for integrity. In
water or water and glycol applications, good water quality must be
maintained or the service life of the valve may be reduced (See Water
Quality Guidelines). The valve stem must be kept free of debris, de-
posits, dirt, dust, and scratches or the packing parts may be damaged
resulting in a packing leak. Control valve hunting will cause excessive
stroking of the valve stem and result in premature failure of the pack-
ing seal. The system must be stabilized to prevent hunting to ensure
reasonable packing life and optimal control performance. Oversizing
of a control valve will result in an unstable condition, which can cause
noise, vibration, and premature trim and packing seal failure. The use
of Warren Controls ValveWorks sizing program will facilitate the selec-
tion of the optimum valve.
MAINTENANCE
PACKING ADJUSTMENT
PARTS/OVERHAUL
Series 2800 Precision Globe Control Valves have either self-adjust-
ing packing or adjustable packing. Valves with Body Material B Bronze
and Packing Type T V-ring, V Vacuum Service, or L Lip Packing have
self-adjusting packing and require no external adjustment. If the valve
has self-adjusting packing and a packing leak is observed replace the
packing and if necessary the stem and plug assembly.
Valves with Body Material B Bronze and Packing Type G Graphite have
adjustable packing. Valves with Body Material S CF8M and Packing
Type T V-ring, G Graphite, or V Vacuum Service Packing also have ad-
justable packing. If the valve has adjustable packing and a packing
leak is observed, tighten the packing nut ¼ turn and observe. If the
leak continues tighten the packing nut another ¼ turn and observe.
Repeat as necessary. If the leak continues and the packing nut cannot
be tightened further with reasonable force replace the packing and if
necessary the stem and plug assembly.
Damaged or worn parts can decrease performance and shorten valve
life.
Damaged or worn packing parts including the packing, bearings,
spring, and other bonnet parts can cause a packing leak resulting in
damage to the actuator, accessories, and surrounding equipment.
Damaged or worn packing parts can also cause increased hysteresis
resulting in poor control.
Damaged or worn trim parts including the plug, stem, seat ring, pis-
ton, and o-ring can cause increased hysteresis, poor control, excessive
internal leakage, and poor shut-off. Damaged or worn trim parts can
also cause damage to the packing parts resulting in a packing leak.
Damaged or worn body gaskets or o-ring seals can cause external
leakage resulting in damage to the actuator, accessories, and sur-
rounding equipment.
Should parts become worn or damaged, parts kits are available. Re-
pack Kits are available to replace the packing. Repack/Inspection
Kits are available to allow the valve to be opened for inspection of
its internal parts. Rebuild/Repack Kits are available to completely re-
build/ overhaul the valve. Parts kits come with complete step-by-step
instructions. Each kit has its own part number. Please provide the
valve’s serial number to ensure getting the correct kit part number
and correct parts.
!
DO NOT DO NOT ATTEMPT
TO SERVICE A
SERIES 2800
VALVE WITHOUT
HAVING A
REPACK/
INSPECTION KIT &
SUPPLEMENTAL
INSTRUCTIONS
ON HAND.