HomeMy WebLinkAboutDOMESTIC TANKSABOVEGROUND/UNDERGROUND DOMESTIC TANKS
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VIA.ori.e,in?tblacitIlal'asticc1or':wli
cY,0,Vani2edJ steell
POWDURAO DneCure Super Durable Topcoat
with Zinc Rich Primer on Aboveground
POWOURAO OneCurOl Two coat system properties include:
• Zinc rich epoxy primer
• Super durable TGIC polyester topcoat
• Superior corrosion and edge protection
• Patent pending formulated primer and topcoat
• Dual service options for above or underground applications
Option 111; Ready -to -bury red oxide durable powder coating with black
i.p�
polyethylene AGUG dome"
I • Option 42; Aboveground option with steel 8" AGUG dorne
• All valves and float gauges are centered under dome
• Fabricates to the latest A.S.M.E. Code, Section VIII, Division 1
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r
• Registered with the National Board
• #72 liquidrlevel outage valve orifice reduces refueling emissions
t
A i �, i �� ITY
i • Vacuum pre-purger_I to save time, money and product
i *Applicable federal, stare, or local regulations may contain specific requirements for
CONTAINERS
I protective coatings and cathodic protection: The purchaser and installer are responsible
1 for compliance with all federal„state, local and NFPA industry regulations_ Cathodic
•
protection is,required and coating must be continuous and uninterrupted and must
comply with,an focal, state or national code.
www.,TnnityContainers.com Call Toll Free: 888-558-8265
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TRINITY
Containing OurWorld's Energym
_General Specifications
Conforms to the latest edition of the ASME cod
Pressure Vessels, Section Vlll, Division 1. Con
NFPA 58,
Rated at 260 psig from -200 F. to 125° F. All tar
evacuated to a full (14,7 psl) vacuum,
Vessel Finish; Coated with epoxy red powder,
with the epoxy powder must be buried). For AN
tanks may be coated with TGIC powder.
Applicable federal, state or local regulations m
specific requirements for protective coatings ai
protection. The purchaser and installer are res
compliance with all federal, state or local reaul
for - f-' "� . WITHDRAWAL
lies with ' \ VALVE
� once
GAUGE �l OAT 4%
ANODE
CONNECTION
> may be /�
` FILLER
1 O O/-'VALVE
inks coated
.ground use, SERVICE /
MULTIVALVE NAME
contain ----�
RELIEF PLATE
cathodic VALVE
�nsible for
ons, FITTINGS LAYOUT UNDER DOME
AGUG VESSEL DIMENSIONAL INFORMATION
All vessels dimensions are approximate I
WATER
OUTSIDE
HEAD
OVERALL
OVERALL
LEG
LEG
WEIGHT
CAPACITY
DIAMETER
TYPE
LENGTH
HEIGHT
WIDTH
SPACING
120 wg.
454.2 L
24"
609.6 mm
EIIip
5' - 5 13/16"
1671.3m�n
3' - 0"
10
245 Ibs.
911.4 mm
257,2 mm
914:4 mm
111.1 kg.
250 wg,
31.5"
Hemi
7' - 2 112"
3' - 7 1/2"
12 3/4'
3' - 6"
472 Ibs.
946.3 L
800.1 mm
2197.1 mm
1104.9 mm
323.9 mm
1066.8 mm
214.1 kg,
320 wg.
1211.2 L
31.5"
Hemi
8' -11 3!4"
3' - 7 1/2"
12 3/4"
4' - 0 1/4"
588 Ibs.
800.1 mm
2736.9 min
1104.9 mm
323.9 mm
1225.6 mm
266.7 kg.
500 wg.
37,42"
Hemi
9' -10"
4' -1 7116"
15"
5' - 0"
871 Ibs.
1892.5 L
950,5 mm
2997.2 miln1255.7
mm
381.0 mm
1524.0 mm
395.1 kg
1000 Wg.
40,96"
Hemi
15' -10 13/I 6"
4' - 4 5/16"
16 1/4"
9' - 0"
1729 Ibs.
3785.0 L
1040.4 mm
4846.6 m
1344.6 mm
412.8 mm
2743.2 mm
784.3 kg
QUANTITY
FULL PER
LOAD STACK
96 12
63 9
45 9
30 1�q
15
Rev; Jan. 27, 2016
Ideal for use as a first stage regulator on an� domestic size ASME or DOT container in propane gas
installations requiring up to 1,500,000 BTU's Per hour. The regulator is factory set to reduce container
pressure to an intermediate pressure of appro�imately i0 PSIG.
Information
LV3rt03TRVg X" RNPT I I%." FNPT I 713�2" Over Outlet
10 PSIG 1 500,000
lvlaximum flow based on inlet pressure 20 PSIG higher the {I the regulator selling and delivery Pressuure2 0% lower than the regulator
selling and delivery pressure 20% lower than the selling.
Provides accurate first stage regulation in two -stage bulk tank systems. Reduce tank pressure to an
Intermediate pressure of 5 to 10 PSIG. Also used to supply high pressure burners for applications like
Industrial furnaces or boilers. Also Incorporated In multiple cylinder Installations.
Ordering information
''/2" F NPT
LV4403SRg %z' F NPT 0
LV4403TRS '/.," 5 1-5
Vd4llaGonr;
F. POL 10 5-10 Yes 2,500,000
LVJtA03TR96 '/" F.NPT o 1-5
10 5-10
When used for final stage pressure control, must either incorpo
with NFPq Pamphlet 58. rate Integral relief valve or separate relief valve should be specified In accordance
Maximum flow based on Intel pressure 20 PSIG higher than th regulator selling and delivery pressure 20%, lower then the Selling.
- _-
Designed to reduce first stage pressure
Ideal
of 5 to 20
PSIG down to burner
for medium commercial Installations, multiple
pressure, normally ivw,c.
cylinder installations and normal domestic
Ordering flfbfoirll at9(Dnt
loads.
FactoryInlet
•
Part •. sion
LV440384
• .
e
Capacity
.4 ProptinG
LV4403846 /" F NPT
L144031346W
#28
at 10 9" to 13"
LV4403&(;B '/" F NPT
Drill
PSIG W.C. Over inlet 935,000
°/a" F. NPT
Lv440396sra°
Inlet
design
'•11achmount
Maximum flow based on 10 PSIG inlet and g'tv.c. delivery presSure.
The LV3403BR Back Mount Regulator is designed to reduce first stage pressure of 5-10 PSIG down to
burner pressure normally I w.c. Designed as a second stage regulator for smaller applications with flow
requirements up to 450,000 BTU/hr. and are ideal for homes, mobile homes, and cottages.
Ordering inferMation
LV3rt03Bd4f; ' ° s
/� FNPT 11" w.c-At 10 9° to 13"
LV3403846R FNPT ,ya, FNPT '!a2" PSIG inlet W.C. Over Inlet 450,000 ��
Maximum flow based on 10 PSIG inlet and 9" W.c, r16 #el(very pressure. t.tsn:a
\ - / hvi
Why Tanks Corrode
Underground steel tanks corrode due to an electroche !cal reaction
between the tank and the surrounding soil. The proces of corrosion
occurs due to small voltage differences on the steel surface that result
in the flow of DC current from,one location to another. Where current
flows from the tank into the soil corrosion occurs. This location is called
the anode in a corrosion circuit. Where current flows from the soil to the
tank, no corrosion occurs. The progress of corrosion is etermined by
the amount of current flowing between the anode and th cathode and
whether the locations of the anode/ cathode remain cons nt over time.
Corrosion rates are generally higher in wet soil environm nts since the
conductivity of the soil promotes the flow of DC current in he corrosion
circuit,
Corrosion generally exhibits itself on underground tankss in either a
general overall rusting or more commonly, a pitting attack. I Pit locations
may result from metallurgical conditions of the steel s rface or soil
variations such as rocks, salts, fertilizer, moisture concentr tion, oxygen
concentration, etc.
Preventing t
Protecting i
tanks from
easily achieve
of two comrr
protection
external cc
cathodic
7 These two
are con
r . and should
conjunction
other. A
external
coating insulates the steel from the soil environment, thu:
the flow of corrosion current from the anode to the cathode.
external coating can protect over 99% of the tank surface are
no coating is perfect. Damage from construction or soil stn
tiny defects, which may result in accelerated corrosion at th
Cathodic protection prevents corrosion at those defects
DC current from an external source, forcing the tank
cathode. Application of sufficient DC current to the tank will
corrosion from occurring. The two general types of cathode
systems are sacrificial and impressed current. Sacrificial
used when the amount of current required for the protecti
such as in underground propane tanks. Impressed curr(
are more commonly used for large structures such as lar
pipelines. Electrical isolation of the tank from metallic pipi
and electrical grounds Is critical for the cathodic protect!(
effectiveness.
How Sacrificial Cathodic Protection Works
Sacrificial systems work by creating a galvanic connection
)rrosion is
i bythe use
my applied
methods:
ting and
protection-,
methods
e used in
with the
effective
protective
preventing
m effective
However,
;ses create
defect.
applying
3 become
revent any
protection
stems are
I is small,
t systems
diameter
g systems
system's
two
different metals. The most common anode material is magnesium,
which when coupled to steel results in DC current flow from the
magnesium to the steel. The open circuit potential of steel is about
-0.50 volts referenced to a copper sulfate electrode. The open circuit
potential of magnesium is about -1.55V to-1.80V. By connecting the
two metals together, the difference of 1 to 1.25V volts results in current
flow to the tank that overcomes the natural corrosion cells that exist on
the tank. With this current available to the tank, no corrosion occurs..
Magnesium Anodes
There are a variety of anode sizes and alloys used for cathodic
protection. The two primary alloys are designed as H-1 (or AZ63) and
High Potential. The H-1 alloy is produced from recycled magnesium
and has an open circuit potential of approximately—1.55V. This alloy
is well suited for protection of underground propane tanks. The High
Potential alloy is 99% pure magnesium having an open circuit potential
up to =1.8V. This alloy should be used for soil applications over 10,000
ohm -cm resistivity.
The two most common anode sizes used for underground propane.
tanks are 9lb. and 171b. The size designation relates to the metal weight.
10' of #12 TW insulated wire is attached to the anodes. Anodes are
then backfilled in a mixture of gypsum, bentonite, and sodium sulfate
to lower the electrical resistance of the anode to soil. The mixture is a
low cost, nonhazardous, electrically conductive'backfill. The anode and
backfill is then packaged in a cotton bag and either a cardboard box or
paper bag. Actual shipping weight of these anodes with backfill is 27
lb. and 45 lb.
Application Recommendations
Magnesium anodes can protect underground tanks in most soil
conditions. The H-1 alloy is generally very effective. The following chart
provides size and quantity recommendations forvarious size tanks based
on conservative design assumptions. This chart covers soil conditions
up to 10,000 ohm -centimeter resistivity, Resistivities higher than
10,000 ohm -centimeter generally represent very dry soils. Verification
of soil resistivity can be performed through soil analysis. Contact us
for design recommendations in locations where soil resistivitles exceed
10,000 ohm -cm, or if there is no effective external coating on the tank.
The propane service line from the tank to the house also must be
considered in the cathodic protection design, unless the service line
Is plastic. All underground steel pipe should be externally coated with
a corrosion resistant material. The service line should be electrically
isolated at the house with an insulating fitting or union. if service pipe
is less than 50' in length, the tank anodes will provide sufficient current
to protect both tank and pipe. For longer lengths of pipe, an additional
anode may be required at the house connections.
If another metallic material such as copper is used for service piping,
the pipe should be electrically isolated from the tank at the fill pipe
connection. Copper and steel create a galvanic couple that will accelerate
corrosion of the steel tank when directly connected to copper piping.
Generally, copper piping does not require cathodic protection.
Soil Type
Fertile.Soils;.Clay,
Sandy Loam
Sand, Gravel
Areasi
Rocky
Tank Cap,
(gal.)
5 to 5000 ohm -cm
5000 to 10000
ohm -cm
size
Qty.
Alloy
size
Qty.
Alloy
120
9#
1
H-1
9#
1
H-1
150
9#
1
H-1
9#
1
H-1
250
9#
1
H-1
9#
2
H-1
325
9#
1
H-1
9#
2
H-1
500
17#
1
H-1
9#
2
H-1
1000
17#
2
H-1
9#
4
H-1
1500 1
17#
2
H-1
9#
4
H-1
2000
17#
3
H-1
9#
6
j H-1
"Based on 90% effective external coating, 2 ma&2 current density, and 30-
yearAnode life.
Anode Installation
1. Determine size and quantity of anodes from appli ation chart.
2. When a single anode is installed, it should be located near the
tank center on either side of tank.
3. When multiple anodes are installed, space them evenly around
the tank. See examples below.
I anode 2 anodes anodes
,.:
F
4.Anodes are shipped in either cardboard boxes nor multi -wall
paper sacks. Remove outer container and bury the cloth bagged
anode. If anode is supplied in plastic bag, remove plastic bag
before installing.
5. Install anodes approximately two to three feet from the tank and
at least as deep as the center line of the tank. Ano(es work best
in locations with permanent moisture, so general ky the deeper
the better.
6.After placing the anode, stretch out the anode connection wire
and extend over to a connection point on the tank ill pipe.
7. Cover the anode with approximately six inches o backfill and
pour 5 gallons of water on the anode to saturate he prepared
backfill. Water is necessary to activate the anode.
8.Connect the anode wire to the tank with a low electrical
resistance connection. Examples are threaded tud on the
tank fill pipe or any accessible metallic connection point to the
tank. All connections should be coated with a m isture-proof
material.
9. Ideally, the tank connection is made in the area of the tank fill
pipe within the covered dome: With access to the anode wire,
subsequent testing of the tank can include measurement of
anode output and verification of performance.
10.Verify performance of the anode using an appropriate test
procedure. j
Mechanical Connection Under Dome
Cathodic Protection Testing Procedure
Equipment Needed: Digital Voltmeter, Red Test Lead Min. 12' Long
& Black Lead Min. 2' Long, Reference Electrode (Copper/Copper
Sulphate Half -Cell)
STEP 1: Using a digital voltmeter insert the red test lead into the Volt
jack of the meter and select the 2 or 20 volt DC scale. Clip red test
lead connector to an uncoated metallic area of the tank, preferably
to the fill pipe multivaive. A good solid connection is very important.
(DO NOT connect to shroud).
STEP 2: Insert the black test lead into the Common jack on the meter,
and connect the opposite end of the lead to a charged reference
electrode (%z cell).
STEP 3: Remove protective cap from the porous plug at'bottom end
of electrode. Place porous plug end into native soil (remove grass if
necessary) at four locations around the tank (one on each side of the
tank, and one at each end of the tank). If difficulty is encountered
obtaining readings, moisten soil with water or dig Yz cell deeper into
the soil.
STEP 4: Record all four meter readings on an appropriate form. The
least of all four readings should be a minimum of-0.850v or more
negative. {Note: If any of the four readings are below (less negative)
-0.850v then the tank is not fully protected}.
Charging Reference Electrode
STEP 1: Unscrew and remove porous plug end of new reference
electrode. Add deionized or distilled water to the copper sulfate
crystals, filling electrode completely. The solution will turn blue in
color and there should always be excess crystals at the bottom of
the tube. DO NOT USE TAP WATER,
STEP 2: Replace porous plug end of electrode and place in an upright
position so that the porous plug end is facing in the down position
and let stand for 1 hour before use. This will allow the porous plug
to become completely saturated before use.
Caution: Do not allow electrode to contact oil, road salts, or other
substances that may contaminate the solution by absorption
through porous plug. Do not allow electrode to freeze.
Distributed 19y:
' 112011-50001
Maximum Capacity of PE Pipe in Thousands of BTU per Hour of liquefled Petroleum Gas
with a Gas Pressure of 11.0 In. WC and a Pressure Drop of 0.6 In. WC
(based on a 1.62 specific gravity gas)
484 425 DO Ou 45 41 38 35 �33`i
73 720 571 383 325 286 257 235 218 204 192
1391 934 740 627
qi 26
1983
581 497 421 370 333 305 283 264 249
1331 1054 893 786 708
169 152
219 197
600 528 475 435 403 376 354
3863 2391 1894 1605 1412 1271 1078 948 854
311 280
781 723 676 636
4724 3247 2608 2232 19 8 1792 1534 1359 1232 1133 1054 989
10063 6755 5351
560 504
934
4535 3989 3592 3044 2678 2411 2207 2044 1910 1797
828 750
1581 1424
ee
22
e e - °
a ee ,ee ee ee ee
20 18 15 :ee •ee eee ee ee ee
13 12 11 10
ee ee
129
167
9 9 8 8 8
113 102 86 76 68 63 58 54 51 48 46 44
147 132 112 99 89
7 7
42 40
238
81 75 70 66 63 60 57
209 188 160 140 126 116 107 100
54 52
427
642
94 89 85 81
376 338 287 252 227 208 192 180 169 160 152 146
569 616 441
78 75
1207
39) 354 326 303 285 269 255 244 233
1061 956 810 712 642 587
140 134
224 216
544 508 478 453 431 411
394 379
5168ruh=t CFH
Maximum Capacity of PE Pipe In Thousands
of BTU per Hour of Liquefied Petroleum Gas
with a Gas Pressure of 2,0 psi and a Pressure
Drop of 1.0 psi
(based on a 1.52 specific gravity gas)
1966
1130300
e °
IN ' e
11045 886 779, 702 595 523 471 431 399 373 351
7586 586 6008 5092
14652
4479 4033 3418 3007 2707 2478 2295 2144 2018
9836 7790 6602 5807 5229 4432 3898
309 278
1775 1699
20877
37514
3510 3213 2975 2780 2617
14014 11100 9408 8275 7451 6315 5555 5002 4578 4239 3962 3729
25183 19946 16905 1486�
2302 2073
3280
43429
13389 11348 9982 8988 8226 7618 7119 6700
29848 23969 20515 1818? 16474 14100
2953
5894 5894 5307
530 7
105963
12496 11322 10417 9691 9092 8589
71131 56339 47750 42000 37820 32054 28194 25388 23234
21517 20108 18926
16647 14990
r2503
207 187 158 10 • " I� ��� •�� " '
139 120 115 106 99 �� 11
ee ie
1192 1073 910 800
1645 1391 1179
720 659 611 571 537 508 484 462
1037
2202 1983 16801478
934 855 792 740 696 659 627 599
1331 1218 1128
443 425
574 551
4498
5908
3956 3563 3019 2656
5232
1054 992 939 893 853
2391 2189 2027 1894 1783 1688
818 786
12705
4740 4057 3596
11175 10063 8529 7502
1605 1533
3268 2997 2788 2616 2471 2347 2239 2144
6755
1469 1412
2060
6182 5725 6350 5036 4767 4535 4331
1985
4160 3988
Maximum Capacity of PE Pi
5168TUh=iCFH
a In Thousands of BTU
with a Gas Pressure.of
per Hour of Liquefied Petroleum Gas,
10.0
psi and a Pressure Drop of 1.0 psi
based on a 7.62 speclOc
gravity gas)
18455
e °MM�M�
' °2476 1662 1316 1116 981 884 749 659 503
9555 7568 6414
18455
5642
12388 9812 8316 7315
5080 4306 3787 41 0 31421 2890 2701 2542
6687 5883
2236 2014
26296
47252
17652 13981 11849 10423
4910 4422 4047 3747 3502 3296
9385 7954 6997 6300
2899 2611
53960
31720 25123 21293 18729
37087 29782 25489 22591
5766 5340 4990 4697
16865 14294 12572 11321 10361 9595 8967 8440
4131 3720
133476
89601 70967 60148 52905
20469 17519 15527 14068 12943 12041 11297 10671
47640 40376 35514
7423 6685
48589
8569
31980 29267 27104 25329 23840 20970
°
8882
ee
297
a ee
261 235 199 175
e
158 144 134 •/eoil e e
e
1707
2213
1352
1501 1146 lOQB
1946
125 106
118 11'1
07 830 769 101
97 93e
3163
1753 1485 1306
2773 2497 2116 1862
1176 1077 997 932 877 830 790 764
8665
4983 4487 3803 3345
723 695
1676 1534 1421 1328 1250 1183 1125 1075 1030 990
3012 2757 2653
7334
16004 14077
6500 5890 5041 4468
2386 2246 2126 2022 1931 1851 ' 1779
4048 3724 3465 3251 3077
12676 10743 9449
2916 2782 2664 2851 2466
8509 7787 7212 6739 6343 6005
5712 5466 5227
5024
2516BTUh-1C
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Ph, 1.800.662,0208 ° Fax: 615.325,9407 ° Web: www.gastite.com
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