Warren Controls 313 Overflow Trap - Manual (Page 4)

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2600 Emrick Blvd • Bethlehem, PA 18020 • USA •800-922-0085 • www.warrencontrols.com
iNSTALLATiON – TyPE 313
OvERFLOw TRAP
• To determine which 313 Overflow Trap you
have locate the part number on the factory
serial number label (See Information Present
on 313 Overflow Trap section for location of
important information on overflow traps).
Then see 313 Overflow Trap Specifications
section to determine the performance and
physical characteristics of the overflow trap).
• The overflow trap must be installed in
vertical pipe with its inlet up as shown on the
installation orientation label (See Information
Present on 313 Overflow Trap section for
location of important information on overflow
traps).
• Eliminate vibration in piping. 313 Overflow
Traps are not suitable in installations where
vibration exists.
• Before installing, be sure the 313 Overflow
Trap and piping are clean inside and free
of scale, chips, welding spatter, and foreign
material. Thoroughly blow out or flush pipe
lines.
• Do not obscure factory serial number label or
installation orientation label with paint.
• Pipe plug must be installed in float chamber
during operation.
OPERATiON – TyPE 313 OvERFLOw TRAP
• Deaerators, tanks with steam blankets, produce condensate as the steam condenses. The 313 Overflow Trap
traps and relieves this condensate through its internal pilot while keeping the steam blanket from escaping.
Overflow can occur if the water entering the tank exceeds its capacity. The 313 Overflow Trap relieves the
overflow through its internal single seated main stage valve. buoyancy of the overflow trap’s internal float ball
provides force to actuate the internal pilot operated single seated valve assembly to relieve condensate and
overflow to drain. It is normal for condensate to intermittently flash to steam as it is relieved to the drain. Steam
from the steam blanket however should not be continuously exiting the overflow trap to the drain.
mAiNTENANCE – TyPE 313
OvERFLOw TRAP
• 313 Overflow Traps for the most part are main-
tenance free when sized and chosen properly
for the application. maintain the fluid pres-
sure, pressure drop, and temperature within
the limits of the overflow trap (See Informa-
tion Present on 313 Overflow Trap section for
location of important information on overflow
trap and 313 Overflow Trap Specifications sec-
tion to determine the performance and physi-
cal characteristics of the overflow trap).
• The inlet and outlet of the overflow trap must
be kept unblocked. The internal pilot operat-
ed single seated valve assembly must be kept
free of debris, deposits, and dirt. The internal
pilot operated single seated valve assembly
must move freely. The float ball must not be
come filled with water. The float lever must
be straight. factory set-up of the overflow
trap is shown on drawing 03130611101.
• The water level inside the float chamber must
cover the windows in the valve body in order
for the main stage to open.
• Perform Float Ball Level Test during scheduled
maintenance periods. float ball level must be
correct for water to be at correct level in the
float chamber. A set-up fixture may also be
fabricated as shown on drawing 03130614111
to test and set the float ball level.
• Pipe plug must be installed in float chamber
during operation.