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General Specifications
Conforms to the latest edition of the ASME code for
Pressure Vessels, Section Vill, Division 1. Complies with
NFPA 58.
Rated at 250 psig from -20" F. to 125' F. All tanks may be
evacuated to a full (14.7 psi) vacuum.
Vessel Finish: Coated with epoxy red powder. ( Tanks coated
with the epoxy powder must be buried). For Aboveground use,
tanks may be coated with TGIC powder.
Applicable federal, state or local regulations may contain
specific requirements for protective coatings and cathodic
protection. The purchaser and installer are responsible for
compliance with all federal, state or local regulations.
nVcoN I I CK=U
--�, WITHDRAWAL
VALVE
� once �
FLOAT tr. Gas ` ANODE
GAUGE CONNECTION
®' FILLER
VALVE
® SERVICE NAME
MULTIVALVE PLATE
RELIEF
VALVE
FITTINGS LAYOUT UNDER DOME
AGUG VESSEL DIMENSIONAL INFORMATION
All vessels dimensions are approximate
WATER
OUTSIDE
HEAD
OVERALL
OVERALL
LEG
LEG
WEIGHT
QUANTITY
FULL
PER
CAPACITY
DIAMETER
TYPE
LENGTH
HEIGHT
WIDTH
SPACING
LOAD
STACK
120 wg.
24"
Ellip
6'- 5 13/16"
3' - 0"
10 1/8"
3' - 0"
245 lbs.
96
12
454.2 L
609.6 mm
1671.3mm
911.4 mm
257.2 mm
914.4 mm
111.1 kg.
250 wg.
31.5"
Hem!
7'- 2 1/2"
3' - 7 1/2"
12 3/4"
3' - 6"
472 lbs.
63
9
946.3 L
800.1 mm
2197.1 mm
1104.9 mm
323.9 mm
1066.8 mm
214.1 kg.
320 wg.
31.5"
Hemi
8' -11 314"
3' - 7 1/2"
12 3/4"
4' - 0 1/4"
588 lbs.
45
9
1211.2 L
800.1 mm
2736.9 mm
1104.9 mm
323.9 mm
1225.6 mm
266.7 kg.
500 wg.
37.42"
Hemi
9' -10"
4' -1 7/16"
15"
5'- 0"
871 lbs.
30
6
1892.5 L
950.5 mm
2997.2 min
1255.7 mm
381.0 mm
1524.0 mm
395.1 kg
1000 wg.
40.96"
Hemi
15'-10 13/16"
4'-4 5/16"
16 1/4"
9'-0"
1729lbs.
15
5
3785.0 L
1040.4 mm
4846.6 mm
1344.6 mm
412.8 mm
2743.2 mm
784.3 kg
Rev: Jan. 27.2616
Why Tanks Corrode
Underground steel tanks corrode due to an electrochemical reaction
between the tank and the surrounding soil. The process 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 determined by
the amount of current flowing between the anode and the cathode and
whether the locations of the anode/ cathode remain constant over time.
Corrosion rates are generally higher in wet soil environments since the
conductivity of the soil promotes the flow of DC current in the corrosion
circuit.
Corrosion generally exhibits itself on underground tanks in either a
general overall rusting or more commonly, a pitting attack. Pit locations
may result from metallurgical conditions of the steel suraface or soil
variations such as rocks, salts, fertilizer, moisture concentration, oxygen
concentration, etc.
rrevenung corrosion
aamc"= rx Protecting underground
tanks from corrosion is
easily achieved bythe use
of two commonly applied
protection methods:
external coating and
cathodic protection.
These two methods
are complementary
and should be used in
conjunction with the
other. An effective
external protective
coating insulates the steel from the soil environment, thus preventing
the flow of corrosion current from the anode to the cathode. An effective
external coat ngcan protect over 99%ofthe tank surface area. However,
no coating is perfect Damage from construction or soil stresses create
tiny defects, which may result in accelerated corrosion at the defect.
Cathodic protection prevents corrosion at those defects by applying
DC current from an external source, forcing the tank to become
cathode. Application of sufficient DC current to the tank will prevent any
corrosion from occurring. The two general types of cathodic protection
systems are sacrificial and impressed current Sacrificial systems are
used when the amount of current required for the protection is small,
such as in underground propane tanks. Impressed current systems
are more commonly used for large structures such as large diameter
pipelines. Electrical isolation of the tank from metallic piping systems
and electrical grounds is critical for the cathodic protection system's
effectiveness.
How Sacrificial Cathodic Protection Works
Sacrificial systems work by creating a galvanic connection between 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 forvadous 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 resistivities 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
oili,,Clay;,
yldam ---
Rhvk(604ii6c
SaY., :ravel, Rocky
Areas
Tank Cap.m
5000 to 10000 ohm -cm
1Ba1•)
SeSi�ze
-cC's
iffy 1
LAW&
i?Alldj;'
..
Size
Qty.
Alloy
1201
%,f1=
9#
1
H-1
150
' 9# .
Y1_q
j�6� i
9#
1
H-1
250
h''l
� 1; 7
R -1'_?
9#
2
H-1
325
_9# j
E _i
DIE
9#
2
H-1
500
(:17
9#
2
H-1
1000
4
H-1
1500
ff177&
'_ `2_i
i �.Ht �
9#
4
H-1
2000
1, Mt.!
_ 3
_,iH-1�_'
9#
6
H-1
'Based on 90% effecdve external coating, 2 ma/h2 current density, and 30-
yearAnade life.
Anode Installation
1. Determine size and quantity of anodes from application 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.
1 anode 2 anodes 4 anodes
O
4.Anodes are shipped in either cardboard boxes or multi -wall
papersacks. 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. Anodes work best
in locations with permanent moisture, so generally 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 fill pipe.
7.Cover the anode with approximately six inches of backfill and
pour 5 gallons of water on the anode to saturate the prepared
backfiil. Water is necessary to activate the anode.
8.Connect the anode wire to the tank with a low electrical
resistance connection. Examples are threaded stud on the
tank fill pipe or any accessible metallic connection point to the
tank. All connections should be coated with a moisture -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.
Aliechap, ."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 multivalve. A good solid connection is very important
(DO NOT connect to shroud).
STEP 2: Insertthe black test lead into the Common jack on the meter,
and connect the opposite end of the lead to a charged reference
electrode (Y2 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 By:
Ideal for use as a first stage regulator on any domestic size ASME or V�
DOT container In propane gas installations requiring up to 1.500,000 LISTED
BTU's per hour. The regulator is factory set to reduce container
pressure to an Intermediate pressure of approximately 10 PSIG.
ftawml s
• Compact design can be connected to a service valve using either
a POL adapter or a RegO product pigtail.
• Large threaded''%" FNPT bonnet vent oan easily be piped -away
underground installations without the need of glue kits or extra
adapters.
Non Adjustable
• Large flow orifice resists freeze ups due to water concentration in
LPG vapor.
• Design provides for good flow regulation at both high and low
container pressures.
• Built in relief valve and travel stop comply with NFPA 58 over
pressure requirements.
• Incorporates W F.NPT downstream pressure tap for an easy
inline check of the regulators delivery pressure.
• Molded diaphragm provides an o ring type seal between the
body and bonnet
Body and bonnet are assembled in the USA using the unique,
patented RegUlak seal system.
Fully painted in brilliant red for,00mpleta corrosion protection.
• Mounting bracket available as an accessory. part number 2302-31.
Lroftli5
Body............................................................................................Zinc
Bonnet.........................................................................................Zinc
Spring........................................................................................
Steel
Seat Disc.................................................................Resilient
Rubber
Diaphragm...........................Integrated
Fabric and Synthetic Rubber
ltiYllVLI� 11aY.6� if�'{LLiili',t��l
LV3403TR
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Factory
(OE D'eLve
nficeSrzer Pressure.
Va or Ca aci BT�UfIu
P P to '
rBow¢t VenHPosltiog Pqapane
®®®®
•
11 111
' 11
- Maximum Dow based on Wetpressure 20 PSIG high. than the regulator setting and dermery pressure 20%lower Nan the regulatorset6ng and delivery pressure 20%lower than the seting.
M4 )OR -OW- 100 Rego 01 Elen, NC 2n44 USA www.regopmducls.mm H (336) 449-7707
Designed to reduce first stage pressure of 5 to 20 PSIG down to
burner pressure, normally 11' w.c. Ideal for medium commercial
Installations, vapor meter installations and normal domestic loads.
l a
• 90 degree right angle inlet to outer connection for meter or
standard installations.
• Large vent helps to prevent blockage and has''34' F. NPT for vent
piping.
• With 15 PSIG Inlet pressure, regulator is designed to not pass
more than 2 PSIG with the seat disc removed.
• Replaceable valve orifice and valve seat
• Straight line valve closure reduces wear on seat disc
• Unique bonnet vent profile minimizes vent freeze over when
properly installed.
• Large molded diaphragm is extra sensitive to pressure changes.
• Built in pressure tap has plugged Y• F. NPT outlet. Plug can be
removed with a 3/16' hex allen wrench.
• Select Brown Finish
Can mount directly to vapor meter. It is also suitable for mounting
directly to the house piping. It will retrofit into eAsting installations that
are currently using a 90 degree, right angle regulator.
firMER i.AMIRS
Body...........................................................................
Die Cast Zinc
Bonnet........................................................................
Die Cast Zinc
Nozzle Orifice.........................................................................
Brass
Spring......................................................................................
Steel
Valve Seat Disc .....................................................
Resilient Rubber
Diaphragm .........................
Integrated Fabric and Synthetic Rubber
n
w/Mom idiagBracket
r1
CA/iM. 250,000 SOQ000 750,000 1XQ000 1,250,000
'O`uUeC
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'P%rtll7urtilier•
Si1et,COPne<tionl
Coonec�,Uon.
• Madmum bowls based on 10 PSIG Wet end W w.o. deWerypressure.
•• Mounting Bracket Included.
100 Rego Dr. Elon, NC 27244 USA wwwn:goptoducls.crom +1 (336) 44 n()7 hT"M Ala
ES-D-GAC Generac InstallSmart
Job Name _
Job Location
Engineer
Approval
Generac `H Thkil }`�
®C� r ,���� i
Flexible Fuel Linea
The flexible connection between the gas supply and the gas inlet
of a Generac® Stationary Outdoor Backup/Standby Generator
Features
• Operating Temperature -40°F to 150°F (-40°C to 65.6°C)
• Operating Pressure
MAX 0.5psi (3.45 kPa)
• Hydrostatic Burst Pressure
MIN 250psi (1725 We)
• Flexible Tube Material
Annealed 304 Stainless Steel
• Rare Nut Material
Carbon Steel with Zinc Trivalent
Chromate Plating
• Flare Adapter Material
Carbon Steel with Zinc Trivalent
Chromate Plating
• PVC Dip Coating
Gray Heavy Duty, Antimicrobial,
UV Stabilizer
GSA Group Certificate of Compliance to
Product Standards
ANSI Z21.75/CSA 6.27 — Connectors for Outdoor Gas
Appliances and Manufactured Homes
Scope states "...intended for exterior use above ground for
making non -rigid connections... between the gas supply and
the gas inlet of an appliance for outdoor installation that is not
frequently moved after installation." In addition section 1.5.4
states the connector is designed for occasional movement after
installation. Repeated bending, flexing or extreme vibration must
be avoided. Normal operation of a clothes dryer, rooftop HVAC
unit or SIMILAR OUTD00R APPLIANCE DOES NOT constitute
extreme vibration or movement.
ANSI Z21.24/CSA 6.10 — Connectors for Gas Appliances SA,
(Excluding 60/61 Series)
c us
Product Configurations
Contractor
Approval .
Contractor's P.O. No.
Representative
SKU
For use with Generac stationary outdoor backup/
standby generators.
Applicable Codes
ANSI Z223.1/NFPA 54 National Fuel Gas Code Section 9.6
International Fuel Gas Code (IFGC) Section 411.1
B149.1 —Natural Gas and Propane Installation Code (GSA
Group) Section 6.21
Uniform Mechanical Code (UMC) Section 1313.0
Uniform Plumbing Code (UPC) Section 1212.0
Additional Approvals
Commonwealth of Massachusetts Board of State Examiners of
Plumbers and Gas Fitters
Additional Testing
UL2200-2015: Stationary Engine Generator Assemblies Section
66B Vibration Test.
Darcreart product anal
se
measunmentsplease contact ewmmtTethm'WServica. Dortnordrareservesstho ght NdengeomDdM product tl gn,co�tructan, D MOn' to
speddratiora, m materials wiNmdpdormgce and witlmu[Naning arryobilgation to make such changes and moQficntionson Dormom
products previously or Subsequently sold. War to Me owners manual for warra*infomatim A WATTS Brand
Minimum Flow Capacity at Specified Pressure Drop
Straight Length STU/hr. NATURAL GAS, 0.64 SG, 1000 BTU/cu.fL
GONFIGUMTHIN
PRESSURE i•i•
(INCHES WATER
COLUMN)
Generae
Part Number
Dormonr
Part Number
SERIES
I
Numinal ID
I In
Nom'mal I-enght
in
0.50 in
0.75 In
1.00 in
1.25 in
1.50 in
1.75 In
2-OD in
100D0009793
CAN41-4141-24GEN
41
a%
24
290,900
356,278
411,395
469.953
503.854
544,224
581,800
10000009776
CAN41-4141-48GM
41
%4
48
217,000
265.770
306,884
343,107
375,855
405,970
434,000
10000009TR
CAN41-4141-72GEN
41
V4
72
173.900
212,983
254,932
247,960
301,204
325,337
347,800
10000000498
CM51.5151-24GEN
51
1
24
681,800
712,557
822,789
919,907
1,007,707
1.088.448
1,163,600
10000000499
GAN51-5151.48GEN
51
1
48
442,70D
542,195
626.072
699,970
766,779
828.216
885,400
10000000500
CAN51-5151-72GEN
51
1
72
347,800 1
425.966
491.863
549.920
602,407
650,674
695,600
Straight Length BTU/hr. LP GAS, 1.55 SG, 2500 BTU/cu.ft.
CONFIGURATION,•
(INCHES WATER
COLUMN)
Genemc° Oormam°
Pan Number PartNumber
SERIES
Nominal ID
N
Nomnal Langht
In
0.50 in
0.75 in
1.001n
1.25In
1.50 N
1.751n
2.00In
10000009793 CAN414141-24GEN
41
i'i
24
465,400
569,996
658175
735,862
806,096
870,684
930.800
CAN41-4141-40GEN
41
4.
48
344,0D0
421,312
486,489
543,912
595,825
643,565
688,000
MN414141-72GEN
41
a/i
72
278,240
340,773
393.491
439,936
481,926
520,539
556,480
CAN51-5151-24GIN
51
1
24
930,880
1,14;,091
1,316,463
1,471,851
1,612,331
1,741,517
1,861,760
100000400499 CAN51-5151-48GEN
51
1
48
708,320
867,511
1,001,716
1,119,952
1,226,846
1,325.145
1.416,640
CM51-5151-72GEN
51
1
72
556.480
681,546
786,982
879,872
963,852
1,041.079
1,112,960
Generac part number 10000000498 (Donnont part number CAN51-5151-24GEN)
can supply a minimum of 581,800 BTU/hr.of natural gas @ 0.50 In. water column
pressure drop to the generator.
All installations must completely comply with all 0ormont® manufacturing company warnings
and instructions, national, state and local codes and all applicable ANSI standards.
A WQWrS Brand USA: T: (800) 367-6668 • R (724) 733-4808 • Donnont.com
Canada: T (905) 332-4090 • R (905) 332-7068 • Darmontca
Latin America: T. (52) 81-1001-8600 • R (52) 81-80GO-7091 • Donnontcom
ES-D-GAC Generac InstallSmart 1703 02016 Dormont
Maximum Capacity of PE Pipe In Thousands of BTU per Hour of Liquefied Pleum Gas
with a Gas Pressure of 11.0 in. WC and a Pressure Drop of 0.51n. INCI J
(based on a 1.52 specific grovilf~gas)
113
102
86
76
68 63 58 64
61
48
46
44
42
40
147
132
112
99
89 81 76 70
66
63
60
57
54
52
209
188
160
140
126 116 107 100
94
89
85
81
78
75
376
338
287
252
227 208 192 180
169
160
152
146
140 .
134
569
516
441
391
354 326 3D3 285
269
255
244
233
224
216
1061
956
810
712
642 887 544 508
478
453
431
411
394
379
2516BTUh=1CFH
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 I X2 specIft gravity gas)
11300 7586 6008• 6092 4479 4033 3418 3007 2707 2478 2295 2144 2018 1775 1599
74652 9835 7790 6602 5807 5229 4432. 3898 3570 3213 2975 2780 2617 2302 2073
20877 14014 11100 9408 8275 7451 6375 5555 5002 4578 4239 3962 3729 3280 2953
87514 25183 19946 16905 14869 13389 11348 9982 8988 8226 7618 7119 6700 5894 5307
43429 29848 23969 20515 18182 16474 74100 12496 11322 10417 9691 9092 8589 7612 6897
105963 71131 56339 47750 42000 37820 32054 28194 25388 23234 21517 20108 18926 16647 14990
1355
1192
1073 910 800 720 659 611 571 637 508
494
462
443
425
1757
7545
1391 1179 1037 934 W5 792 740 696 659
627
699
674
561
2503
2202
1983 1680 1478 1331 1218 1728 10M 992 939
893
• 853
818
786
4498
3956
3563 3019 2656 2391 2189 ' 2027 1894 1783 7688
1605
7533
7469.
1412
6903
5232
4740 4057 3596 3258 2997 2788 2616 2471 2347
2239
2744
2060
1985
12705
11175
10063 8529 75M 6755 6182 5725 5350 5036 4767
4535
4337
4150
3988
2516BTUh=1CFH
Maximum Capacity of PE Pipe in Thousands of BTU per Hour of Liquefied Petroleum Gas
with a Gas Pressure of 10.0 psi and a Pressure Drop of 7.0 psi
(based on a 1.62 specific gravity gps)
74234 9555 7568 6414 5642 5080 4306 3787 347D 3121 2890 2701 2542 2236
18455
72388
9812
8316
7375
6587
5588
4910
4422
4047
3747
3502
8296
2899
26296
17652
18981
11849
10423
9385
7954
6997
6300
5766
6340
4990
4697
4137
47252
31720
25123
27293
18729
16865
14294
12572
17321
10367
9595
8967
8440
7423
5396D
37087
29782
25489
22591
20469
17519
:15627
74068
12943
12041
11297
70671
945E
133476
89601
70967
60748
52905
47640
40376
35514
37980
29267
27104
25329
23840
20970
582
557
536
754
723 -
695
1076
1030
990
7931
1851
1779
2664
2560
2466
5455
5227
5024
2516BTUh=7CFH,
Ph: 1.800.662.0208 ^ Fax: 615.325.9407 ^ Web: www.gastife.com