Taylor-Wharton XL Series User manual

Instructions For
XL-45, XL-50 and XL-55
with Dual Regulator
Instructions for
XL-45, XL-50 and XL-55
with Dual Regulator
Do not attempt to use or maintain this
unituntilyoureadandunderstandthese
instructions.Donotpermituntrained
persons to use or maintain this unit. If
you do not fully understand these
instructions, contact your supplier for
furtherinformation.
TW-287

NOTE:
For detailed
information on the
handling of cryogenic
liquids, refer to the
CompressedGas
Association
publication: P-12
“Safe Handling of
Cryogenic Liquids”
available from the
CompressedGas
Association, Inc., 1235
JeffersonDavis
Highway, Arlington,
VA22202.
Pressure Hazard - The containers covered by this literature may contain pressures up
to230psig(16 bar/1586 kPa.)Suddenreleaseof this pressuremaycausepersonal injury
by issuing cold gas or liquid, or by expelling parts during servicing. Do not attempt any
repairs on these containers until all pressure is released, and the contents have been
allowedto vaporizeto ensureno pressurebuild-up canoccur.
Extreme Cold – Cover Eyes and Exposed Skin – Accidental contact of the skin or
eyes with any cryogenic liquid or cold issuing gas may cause a freezing injury similar to
frostbite.Protect youreyes and cover your skinwhen handling the container ortransfer-
ring liquid, or in any instance where the possibility of contact with liquid, cold pipes, and
cold gas may exist. Safety goggles or a face shield should be worn when withdrawing
liquid or gas. Long-sleeved clothing and gloves that can be easily removed are recom-
mendedfor skinprotection. Cryogenic liquids are extremelycold and will be attempera-
turesbelow-300° F (-184°C) under normalatmospheric pressure.
Keep Equipment Well Ventilated – Althoughsomeof the gases used inthese contain-
ers are non-toxic and non-flammable, they can cause asphyxiation in a confined area
without adequate ventilation. An atmosphere that does not contain enough oxygen for
breathingwill cause dizziness,unconsciousness, oreven death. Thesegases cannotbe
detected by the human senses and will be inhaled normally as if they were air. Ensure
there is adequate ventilation where these gases are used and store liquid containers or
onlyin awell ventilated area.
Replacement Parts Must be “Cleaned for Oxygen Use” – Some materials, espe-
cially non-metallic gaskets and seals, can be a combustion hazard if used in oxygen or
nitrous oxide service, although they may be acceptable for use with other cryogenic
liquids.UseonlyTaylor-Whartonrecommendedspareparts,and becertainpartsusedon
oxygen or nitrous oxide are marked “cleaned for oxygen service.” For information on
cleaning,consultthe CompressedGasAssociation(CGA) pamphlet G-4.1,“Cleaning for
OxygenService” or equivalentindustrial cleaningspecifications.
Install Relief Valves in Cryogenic Liquid Lines – When installing piping or fill hose
assembly,make certainasuitablesafetyreliefvalve isinstalledin eachsection of plumb-
ingbetweenshut offvalves. Trapped liquefiedgas willexpand as itwarms and mayburst
hosesor pipingcausing damage or personal injury.
TheXL-45,XL-50andXL-55are vacuum insulated, stainlesssteelcontainersdesignedto
storeandtransportcryogenic liquidoxygen,nitrogenor argon.Builtto DOT 4Lstandards,
thesecontainers may beused forover theroad transportation ofcryogenic fluids,as well
as on-site storage and supply in a wide range of applications.
As rugged, long holding time, self-contained gas supply systems, these cylinders are
capable of providing continuous flow rates of up to 350 cfh (9.2 cu.m/h) with a delivery
pressureof approximately100 psig(6.9 bar/690 kPa).
CONTAINER
SAFETY
GENERAL
INFORMATION

XL-45 XL-50 XL-55
Dimensions
Diameter 20 in.(508mm) 20in.(508mm) 20in.(508mm)
Height 61½ in.(1562mm) 645/8in.(1641mm) 697/8in.(1764mm)
Weight
Empty(Nominal) 255lb.(116kg) 270lb. (122 kg) 270 lb. (122kg)
Capacity,Gross 180liters 193liters 210liters
Capacity,UsableLiquid 169liters 181liters 200liters
WeightonContentsMax.
BasedonDOTRatedServicePressure
Oxygen 388lb. (176 kg) 416lb. (189 kg) 454 lb. (206kg)
Nitrogen 273lb. (124 kg) 293lb. (133 kg) 319 lb. (145kg)
Argon 471lb. (214 kg) 505lb. (229 kg) 551 lb. (250kg)
NormalEvaporationRate*
(% Capacity per Day)
Oxygen/Argon 1.2% 1.1% 1.1%
Nitrogen 1.9% 1.8% 1.7%
GasFlowRate@NTP(STP**)
Oxygen, Nitrogen,Argon 350cfh(9.2cu.m/h) 350cfh(9.2cu.m/h) 350cfh(9.2cu.m/h)
ReliefValveSetting 230psig 230psig 230psig
(16bar/1586 kPa) (16bar/1586 kPa) (16 bar/1586 kPa)
InnerContainerBurstingDisc 380psig 380psig 380psig
(26bar/2620 kPa) (26bar/2620 kPa) (26 bar/2620 kPa)
DualPressureBuilding/
EconomizerRegulator***
PressureBuildingSetting 125psig 125psig 125psig
(8.6bar/862 kPa) (8.6bar/862 kPa) (8.6 bar/862 kPa)
EconomizerSetting 145psig 145psig 145psig
(10bar/1000 kPa) (10bar/1000 kPa) (10 bar/1000 kPa)
DesignSpecifications
TC 4LM 4LM 4LM
DOT 4L 4L 4L
GaseousCapacity
BasedonDOTRatedServicePressure
@ NTP (STP)
Oxygen 4688cu.ft(123cu.m) 5025cu.ft(132cu.m) 5484cu.ft.(144cu.m)
Nitrogen 3771cu.ft(99cu.m) 4043cu.ft(106cu.m) 4402cu.ft(116cu.m)
Argon 4558cu.ft(120cu.m) 4884cu.ft(128cu.m) 5331cu.ft(140cu.m)
Specifications are subject to change without notice
* Vented N.E.R. based on Usable Liquid Capacity
** Container pressure at or above factory Dual Pressure Building/Economizer Regulator setting
*** Regulator has a pressure delta of 20 psig (1.4 bar/138 kPa)
SPECIFICATIONS

Handling the Container
The XLSeries containers are very rugged liquid cylinders.All cryogenic liquid cylinders
haveaninner containerand an outercontainer withan insulated vacuumspace between
them.Anyabuse (dents, dropping, tip-over,etc.) canaffecttheintegrity of the containers
insulation system.
When fully loaded, the XL-55 in argon service will contain 551 lb. (250 kg) of product.
Whilemoving afull container, you maybe handling821 lb. (372 kg) and you shouldtreat
theloadaccordingly. Theattachmentpointsprovided on theXL-45/50/55will allowyouto
usea hand truck or ahoist tohandle these loads properly. Do not attempt tomove these
cylindersbyanyothermeans. While movingthecylinder, thefollowingprecautionsshould
beobserved.
qNever lay the cylinder on its side.Always ship, operate and store the unit in a vertical
orupright position.
qWhenloadingor unloading thecontainerfrom a truck,usea handtruck,liftgate, crane
or parallel loading dock. Never attempt to manually lift the unit.
qTomovethe containeroverrough surfaces,or to liftthe container, attach an appropri-
ated sling to the lifting points cut into the welded support posts, and use a portable
lifting device that will handle the weight of the container and its contents.
XL-45, XL-50, XL-55
Containers
FREIGHT DAMAGE
PRECAUTIONS
ANYFREIGHTDAMAGECLAIMSARE
YOURRESPONSIBILITY.Cryogenic
liquidcontainers are deliveredto your
carrierfromTaylor-Wharton’s dockin new
condition.When you receive our product
you may expect it to be in that same
condition.For your own protection, take
time to visually inspect each shipment in
thepresence of the carrier’s agent before
youaccept delivery.If any damage is
observed,makeanappropriate notation
onthe freight bill. Then ask the driver to
signthe notation before you receive the
equipment. You should decline to accept
containersthat show damage which may
affect serviceability.

The XL-45 will store up to 169 liters of product, the XL-50 up to 181 liters and 200 liters
for the XL-55. All three cylinders can deliver either liquid or gas. The following compo-
nent and circuit descriptions are pertinent to the operation of all the containers and
should be read before attempting operation. The components may be identified on the
ComponentLocationIllustration.
Internal Vaporizer – A liquid container for gas service must have an internal heat ex-
changer that functions as a gas vaporizer coil to convert liquid product to gas continu-
ouslyduringwithdrawal.TheXL-45/50/55 utilizes aninternalheatexchangerthat is inside
thevacuum space attached to thecontainer’s outer casing. It provides a means ofintro-
ducing heat from outside the container’s insulated jacket, to vaporize liquid as gaseous
productiswithdrawn. The capacityof this circuitissufficient tovaporizeliquid as gaseous
product is withdrawn. The capacity of this circuit is sufficient to vaporize product at flow
ratesupto 350cfh @ NTP(9.2 cu. m/h@ STP).Ifa greatercontinuous demand isput on
thevaporizer,an external vaporizer should beadded toproperly warmthe gas and avoid
malfunction,or damage,to gas regulators, hoses, and other downstreamcomponents.
Pressure Building – APressureBuildingcircuit is usedto ensuresufficientdriving pres-
sureduringhighwithdrawalperiods.Thisfunctionisactuatedbyopeningahandvalvethat
createsapathfromtheliquid in thebottomof the container,through the PressureBuilding
Regulator, tothe gasspacein thetop. Whenthe pressurebuilding valveis open, and the
containerpressure isbelow the pressure building regulatorsetting, liquid taken from the
OPERATION
XL-45/50/55
Component
Locations