PERMIT DOCUMENTS
GAS ISOMETRIC RISER DIAGRAM
kw Generator @ ,000
BTU 3/4in Riser
3/4in Shut off
nd
2 stage reg
Up to0ft of in PE@ 10PSI
g UG Propane ank
st
Anchored Anode 1 Stage
Regulator
!!!!!!!!!!!Ebojfm!Dpy
Property Owner:
Gas Codes Based on 402.4 Series FBC Codes
Gas Piping Codes based on NFPA 54/58 Codes.
Type of Gas: Propane
PCN #:
Tank Size: 00g UG tank Pipe Sizing: up
D
to 0ft of in PE @ 10 PSI Appliance:
kw Generator @ ,000 BTU
, FL 3
Phone:
Total current BTU: ,000
Email:
Qualifier:
LP Gas State License #
Tank will comply with all setbacks of 10 feet from sources of ignition, property line elements and the residence
INSTALLATION AND OPERATING INSTRUCTIONS
Integral Two-Stage Regulator - UL Listed:
!WARNING!
Failure to follow these instructions or to properly install and
maintain this equipment could result in an explosion and/or fire
causing property damage and personal injury or death.
Marshall Excelsior equipment must be installed, operated and
maintained in accordance with federal, state and local codes and
The integral two-stage regulator contains a non-adjustable first stage
MEC instructions. The installation in most states must also
regulator on the inlet of the second stage portion of the regulator. It is
designed to reduce the tank pressure to an outlet pressure of 11 inches
comply with NFPA 54 and NFPA 58 standards.
water column. The second stage portion has a high capacity internal relief
Only personnel trained in the proper procedures, codes,
valve construction. The first stage does not have an internal relief valve.
standards and regulations of the LP-Gas industry shall install and
First Stage Regulator - UL Listed:
service this equipment.
Things to tell the gas customer:
1.Show the customer the vent, vent assembly or vent line. Stress
that this opening must remain unobstructed at all times. Tell the
customer to check the vent opening after a freezing rain, sleet
storm, or snow to make sure ice has not formed in the vent.
The first stage regulators are designed for high pressure (pounds per
2.Show the customer the shutoff valve on the container. The
square inch) vapor service. These regulators have high capacity internal
customer should close this valve immediately if gas is smelled,
relief valves. The outlet pressure setting is factory set at a nominal 10 psig
appliance pilot lights fail to stay on or appear higher than usual or
(0,69 bar).
any other abnormal situation occurs.
2 PSI Service Regulator - UL Listed:
3.Tell the customer to call your company to service the regulator if
the regulator vents gas or a leak develops in the system. Only a
qualified gas service person shall install or service the regulators.
Scope of the Manual
This instruction manual covers installation and maintenance for the first
stage, second stage, and integral two-stage regulators used on LP-Gas
vapor service applications. They are not to be used on liquid service.
The 2 PSI service regulator is designed to reduce the outlet pressure from
a first-stage regulator (usually 10 psig (0.69 bar)) to a nominal outlet
Description
pressure of 2 psig (0,14 bar).
25 Year Recommended Replacement Life: The MEC Regulator Series is
The combination of high capacity relief valve and large vent provide
designed using rugged time-proven design concepts and constructed of
overpressure protection which exceeds UL standards and is capable of
corrosion resistant materials, both internally and externally. With proper
limiting the downstream pressure in a double failure situation when used
installation and periodic inspection and maintenance, they will meet a 25
with a first-stage regulator.
Year Recommended Replacement Life.
2-PSI Integral Two Stage Regulator - UL Listed:
Screened Drip-Lip: Screened Drip-Lip is oriented either over the inlet,
outlet, or at 90° depending on the configuration.
Pressure Tap Size Restrictions: 1/8" NPT / #54 (0.055") orifice on all
pressure points.
Temperature Capabilities: -40°F to 160°F (-40°C to 71°C)
Contact the factory if the regulator is to be used on any service other than
The integral two-stage 2 PSI regulator contains a non-adjustable first stage
LP-Gas. The following information is located on the spring case: The Part
regulator on the inlet of the second stage portion of the regulator. It is
Number, orifice size, spring range and date code.
designed to reduce the tank pressure to a nominal outlet pressure of 2
2nd Stage Low Pressure Regulator - UL Listed:
psig (0,14 bar). The second stage portion has a high capacity internal relief
valve construction. The first stage does not have an internal relief valve.
Installation
!WARNING!
All vents should be kept open to permit free flow of air in and
out of the regulator. Protect vent openings against the entrance
The second stage regulator is designed to reduce the outlet pressure from
of rain, snow, ice formation, paint, mud, insects or any other
a first-stage regulator (usually 10 psig (0,69 bar)) to an outlet pressure of
foreign material that could plug the vent or vent line.
11 -inches water column (27 bar).
LP-Gas may discharge to the atmosphere through the vent. An
The combination of a high capacity relief valve and large vent provide
obstructed vent which limits air or gas flow can cause
overpressure protection which exceeds UL standards and is capable of
abnormally high pressure that could result in personal injury or
limiting the downstream pressure to 2 psig (0,14 bar) even in a double
failure situation when used with a first-stage regulator. property damage.
INSTALLATION AND OPERATING INSTRUCTIONS
Horizontally Installed Regulators, see Figure 3:
Installation (Continued)
Horizontally mounted regulators, such as found in single cylinder
!WARNING!
installations and ASME tanks, must be installed beneath a protective
The first stage and integral two-stage regulators are not suitable
cover or under the ASME tank dome. If possible, slope or turn the vent
for indoor installations. Never use them on low pressure (inches
down sufficiently to allow any condensation to drain out of the spring
case. Be careful that the slot in the tank dome or protective cover for the
of water column) service because personal injury or property
regulator's outlet piping does not expose the vent to the elements. The
damage could occur.
first stage vent on the integral two-stage regulator should be pointed
Before installation:
down.
Check for damage, which may have occurred in shipment.
Check for and remove any dirt or foreign material that may have
accumulated in the regulator body.
Replace old pigtails. Blow out any debris, dirt or copper sulfate in
the copper tubing and the pipeline.
Apply pipe compound to the male threads of the pipe before
installing the regulator.
Make sure gas flow through the regulator is in the same direction
as the arrow on the body. "Inlet" and "Outlet" connections are
clearly marked.
Indoor Installations, see Figure 4:
The first stage and integral regulators are not recommended for indoor
Installation Location, see Figure 2:
installations. The second stage regulator may be installed indoors as
The installed regulator should be adequately protected from
follows.
vehicular traffic and damage from other external sources.
By code, regulators installed indoors have limited inlet pressure, and they
Install the regulator with the vent pointed vertically down. If the
require a vent line to the outside of the building. A vent assembly, such as
vent cannot be installed in a vertically down position, the regulator
MEC ME960 or at least 3/4" NPT pipe, Gray PVC Schedule 40 Rigid Non-
must be installed under a separate protective cover. Installing the
Metallic Electrical Conduit for above Ground Service, per UL 651, should
regulator with the vent down allows condensation to drain,
be used. The same installation precautions, previously discussed
minimizes the entry of water or other debris from entering the
throughout this manual for the regulator vent, apply to the end of the
vent, and minimizes vent blockage from freezing precipitation.
vent tube assembly. Vent lines must not restrict the gas flow from the
Do not install the regulator in a location where there can be
regulator's internal relief valve. To install the vent line, remove the vent
excessive water accumulation or ice formation, such as directly
screen and apply a good grade of pipe compound to the male threads of
beneath a down spout, gutter or roof line of building. Even a
the line. Vent lines should be as straight as possible with a minimum
protective hood may not provide adequate protection in these
number of bends.
instances.
Install the regulator so that any gas discharge though the vent or
vent assembly is over 3 -feet (0,9 meters) horizontally from any
building opening below the level of discharge and not less than 5-
feet in any direction away from any source of ignition, openings
into direct vent appliances, or mechanical ventilation air intakes.
Install the regulator high enough above ground level - at least 24-
inches (60 cm) - so that rain splatter cannot freeze in the vent.
Some installations, such as in areas with heavy snowfall, may
require a hood or enclosure to protect the regulator from snow
load and vent freeze over.
Underground Installations, see Figure 5:
!WARNING!
The integral two-stage regulators require 2 vent lines, one for
the first stage vent (1/4" OD copper tube inverted flare
connection: 7/16-24 UN thread) and the other for the second
stage vent (3/8" NPT) of the regulator. Failure to use 2 separate
vent tubes can result in early regulator failure and / or over
pressuring the second stage that could result in fire or personal
injury.
INSTALLATION AND OPERATING INSTRUCTIONS
A regulator installed in the dome of an underground container requires a
25 years from date of manufacture or sooner should inspection
vent line to prevent water from entering the regulator spring case.
reveal the need.
Remove the vent screen(s) and install a vent line(s). The vent line must be
Visually inspect the regulator each time a gas delivery is made for:
run from the regulator vent(s) to above the maximum water table. The
vent line opening(s) must terminate at the extreme top inside of the dome
Improper installation; such as vent not pointed vertically down or
cover. Make sure the regulator's closing cap is on tightly, and maintain
under a cover, no vent line on underground systems
drainage away from the dome at all times.
Plugged or frozen vent
Wrong regulator or no regulator in the system
Adjustment
External corrosion
Each regulator is factory set. If it becomes necessary to increase the
Flooded Regulator; water in spring case, regulator submersed on
outlet pressure, remove the closing cap and turn the adjustment screw
underground tanks
clockwise. Turn the adjusting screw counterclockwise to decrease the
Regulator age
outlet pressure.
Any other condition that could cause the uncontrolled escape of
The inlet and outlet pressure tap plugs may be removed using a 7/16"
gas
wrench. The pressure tap is restricted with a #54 orifice, so the plug can
Failure to do the above could result in personal injury or property
be removed with pressure in the regulator. Install a pressure gauge to
damage.
determine the regulator's inlet pressure and outlet setting during
Vent Opening
adjustment. Actual pressure at the second stage regulator may be less due
Make sure the regulator vent, vent assembly, or vent line does not
to line loss. After setting, add thread sealant to the pipe plug and reinstall
become plugged by mud, insects, ice, snow, paint, etc. The vent screen
it. Replace the closing cap. Check the plug for leakage.
aids in keeping the vent from becoming plugged; the screen should be
Overpressure Protection
clean and properly installed.
!WARNING!
Water inside Regulators from Floods, Weather or Water Table on
Underground Systems
Some type of overpressure protection is needed if actual inlet
pressure can exceed the inlet pressure rating. Overpressuring
Replace any regulator that has been flooded or has been submersed
below the water, has water in the spring case or shows evidence of
any portion of this equipment above the limits shown in the
external or internal corrosion. Checking for internal corrosion on the first
Specifications may cause damage to regulator parts, leaks in the
stage and integral two-stage of the second stage portion, can be done by
regulator, or personal injury due to bursting of pressure-
removing the closing cap and with the aid of a flashlight observing the
containing parts or explosion of accumulated gas.
condition of the relief valve spring, main spring and internal spring barrel
If any portion of the regulator is exposed to an overpressure
area. A more detailed examination will require shutting down the gas
system and the complete removal of the adjusting screw. The second
condition that exceeds the limits in the Specifications, it must be
stage regulator must be completely disassembled by a qualified person to
inspected for damage that may have occurred.
look for internal corrosion. Closely examine regulators installed with their
Large volumes of gas may discharge though the regulator vent
vent horizontal for signs of corrosion. Correct any improper installations.
during internal relief valve operation, which can, if not
Regulator Replacement
controlled, result in fire or explosion from accumulated gas.
Older regulators are more likely to fail catastrophically because of worn or
The first stage, integral two-stage, and second stage series regulator,
corroded parts. Replace all regulators over 25 years of age. Other service
except for the first stage of the integral two-stage, contain internal relief
or environmental conditions may dictate replacement of the regulator
valves. The internal relief valve in all units will give overpressure
before the end of its 25 year service life.
protection against excessive build-up resulting from seat leakage due to
Regulators that are installed on underground systems and in areas that
worn parts, chips or foreign material on the orifice. The amount of
are subject to sea salt (coastal) atmospheres should be inspected annually
internal relief protection provided varies with the regulator type and the
for external and internal corrosion and may require replacement sooner.
cause for the overpressure relief valve operation. When the internal relief
valve opens, gas escapes to the atmosphere through the regulator's vent.
Regulator Repair
Some type of additional external overpressure protection must be
Only personnel trained in the proper procedures, codes, standards and
provided if the outlet pressure in an overpressure condition exceeds the
regulations of the LP-Gas industry shall install and service this
inlet pressure rating of the gas system or downstream equipment.
equipment.
Common methods of external overpressure protection include relief
Regulators that have been disassembled for repair must be tested for
valves, monitoring regulators, shutoff devices, and series regulation.
proper operation before being returned to service. Only parts
Maintenance
manufactured by MEC should be used to repair MEC regulators. Be sure
to give the complete Part Number of the regulator when corresponding
!WARNING!
with the factory.
To avoid personal injury or equipment damage, do not attempt
The part number, orifice size, and spring range are on a label attached to
any maintenance or disassembly without first isolating the
the spring barrel. The date of manufacture is stamped on the regulator.
regulator from system pressure and relieving all internal
Always provide this information in any correspondence with your MEC
pressure.
Distributor regarding replacement parts or technical assistance. If
construction changes are made in the field, be sure that the regulator
Regulators that have been disassembled for repair must be
marking is also changed to reflect the most recent construction.
tested for proper operation before being returned to service.
Only parts manufactured by MEC should be used for repairing
MEC regulators. Relight pilot lights according to normal startup
Due to normal wear or damage that may occur from external
sources, these regulators must be inspected and maintained
periodically. The frequency of inspection and replacement of
the regulators depends upon the severity of service conditions
or the requirements of local, state and federal regulations. Even
under ideal conditions, these regulators should be replaced after
SPECIFICATIONS - MEGR-1100 AND 1200 SERIES
Red
Gray
Green
COLORWHITE
REGULATOR
bar)
bar)
w.c.
w.c.
psi
psi
in
mbar)mbar)
in
Stage:
0,15
0,83
Stage:
12
2.2
32
32
13
13
to
adjustable
to
to
RANGE
SPRINGto
OUTLET
toto
to
to
PRESSURE
8
First1
Second
non
(24(24
9.5
9.5
(0,55
(0,069
w.c.
Stage:
bar)w.c.
bar)bar)
psi
psi
Stage:
mbar)mbar)psig
in
in
2
10
10
approx.
OUTLET
SETPOINT(0,6911
PRESSURE(27(27(0,14(0,69
11
First
STANDARD
Second
bar)
bar)bar)
bar)psigpsig
psi
psig
MAX
INLET
75
15
250250
(5,2
(17,2(1,03(17,2
PRESSURE
EMERGENCY
bar)bar)bar)bar)
psigpsig
psigpsig
MAX
INLET
1010
250250
(0,69(17,2(0,69(17,2
PRESSURE
ALLOWABLE
in
ininin
in
mm)mm)mm)mm)
SIZE
0.140.170.170.15
7/32
ORIFICE
(3,8mm)
(3,6(4,3(4,3(5,6
bar)bar)bar)
psig
psig
OUTLETpsig
25
30
PRESSUREPRESSURE
(0,14(0,34(2,07
REMOVED
MAX
DISC
OUTLET
bar)bar)bar)
psigbar)psig
psigpsig
INLET
WITH
3050
MAX
250250
(3,4
(2,07(17,2(17,2
PRESSURE
SPECIFICATIONS
SERIES
bar)
bar)bar)
psi
DISCHARGEpsipsi
4
1
1200
16
VALVE
RELIEF
TO
(0,28(1,10
NOMINAL
(0,069
AND
START
1100
1:
Gauge
OutletOutlet
Outlet
TapsTapsTaps
DownDownDownDownDownDown
Taps
Taps
VENT
FNPT
TABLE
Over
OverOver
Stage:Stage:Stage:
Taps
(2):(2):(2):
Inlet(2):(2):(2):
OutletOutletOutlet
GaugeOppositeGaugeGauge
GaugeGauge
INCH
(2):
LOCATIONStage:Stage:Stage:
StageStageStageStageStage
STANDARDStage
Gauge
SecondSecondSecond
3/8
SCREENED
FirstFirstFirstFirstFirstFirst
OppositeOppositeOpposite
Stage
fitting.
SecondSecondSecond
FirstTapsOpposite
flare
droop.
FNPTFNPTFNPT
ininininverted
mbar)
OUTLET
droop.
1/2
(5
CONNECTION
tube
w.c.
mbar)
(5
copper
FNPTFNPTFNPTFNPT
FNPTOver
FPOLFPOLFPOLOver
inches
OD
inininin
inw.c.
FPOLFPOLOver
INLET
2
1/41/4
1/2
inch
CONNECTION
and
inches
droop.
1/4
2
(1)
for
20%
with
pressure
and
BTU/HR
500,0001/2450,000500,000
thread
CAPACITY1,000,000
inlet
PROPANE
pressureUN
bar)
pressure
24
inlet
BGF2X
AAJOver
BGFFPOLOver
HBF2X
BBH
HBH
CFF650,0003/4(2,07
BAFBAFBBF1/4
HBFFPOL
AAJXBOver
BGFXB
HBFXA2Xinlet
BBHXA
HBHXAFPOL
BBFXA1/47/16
HBFXAFPOL
bar)
psig
bar)
12521232
12221252
1232
NUMBER
size:
1232T1122H
1232E
1232E1222H
1232
12321222HT
30
1122H
1232T
1232E1222H
1232E
(0,69
(2,07
Vent
PART
MEGRMEGR
MEGRMEGRpsig
MEGR
MEGRMEGR
MEGRMEGRMEGR
on:
MEGR
MEGRMEGR
Stage:
MEGRMEGR
MEGRMEGRMEGR
psig
10
Stage
30
Based
Second
Stage:First
bar)
Stage
Stage:
Stage
Stage
(0,14
Integral
SERVICESecondIntegralFirst
CapacitiesIntegral
Two
First
PSI
REGULATOR
Second
APPLICATION
2
(1):(2):
Cathodic Protection
for Underground Propane Tanks
Why Tanks Corrode
different metals. The most common anode material is magnesium,
Underground steel tanks corrode due to an electrochemical reaction
which when coupled to steel results in DC current flow from the
between the tank and the surrounding soil. The process of corrosion
magnesium to the steel. The open circuit potential of steel is about
occurs due to small voltage differences on the steel surface that result
-0.50 volts referenced to a copper sulfate electrode. The open circuit
in the flow of DC current from one location to another. Where current
potential of magnesium is about -1.55V to -1.80V. By connecting the
flows from the tank into the soil corrosion occurs. This location is called
two metals together, the difference of 1 to 1.25V volts results in current
the anode in a corrosion circuit. Where current flows from the soil to the
flow to the tank that overcomes the natural corrosion cells that exist on
tank, no corrosion occurs. The progress of corrosion is determined by
the tank. With this current available to the tank, no corrosion occurs.
the amount of current flowing between the anode and the cathode and
whether the locations of the anode/ cathode remain constant over time.
Magnesium Anodes
Corrosion rates are generally higher in wet soil environments since the
There are a variety of anode sizes and alloys used for cathodic
conductivity of the soil promotes the flow of DC current in the corrosion
protection. The two primary alloys are designed as H-1 (or AZ63) and
circuit.
High Potential. The H-1 alloy is produced from recycled magnesium
and has an open circuit potential of approximately – 1.55V. This alloy
Corrosion generally exhibits itself on underground tanks in either a
is well suited for protection of underground propane tanks. The High
general overall rusting or more commonly, a pitting attack. Pit locations
Potential alloy is 99% pure magnesium having an open circuit potential
may result from metallurgical conditions of the steel surface or soil
up to -1.8V. This alloy should be used for soil applications over 10,000
variations such as rocks, salts, fertilizer, moisture concentration, oxygen
ohm-cm resistivity.
concentration, etc.
The two most common anode sizes used for underground propane
Preventing Corrosion
tanks are 9 lb. and 17lb. The size designation relates to the metal weight.
Protecting underground
10’ of #12 TW insulated wire is attached to the anodes. Anodes are
tanks from corrosion is
then backfilled in a mixture of gypsum, bentonite, and sodium sulfate
easily achieved by the use
to lower the electrical resistance of the anode to soil. The mixture is a
of two commonly applied
low cost, nonhazardous, electrically conductive backfill. The anode and
protection methods:
backfill is then packaged in a cotton bag and either a cardboard box or
external coating and
paper bag. Actual shipping weight of these anodes with backfill is 27
cathodic protection.
lb. and 45 lb.
These two methods
are complementary
Application Recommendations
and should be used in
Magnesium anodes can protect underground tanks in most soil
conjunction with the
conditions. The H-1 alloy is generally very effective. The following chart
other. An effective
provides size and quantity recommendations for various size tanks based
external protective
on conservative design assumptions. This chart covers soil conditions
coating insulates the steel from the soil environment, thus preventing
up to 10,000 ohm-centimeter resistivity. Resistivities higher than
the flow of corrosion current from the anode to the cathode. An effective
10,000 ohm-centimeter generally represent very dry soils. Verification
external coating can protect over 99% of the tank surface area. However,
of soil resistivity can be performed through soil analysis. Contact us
no coating is perfect. Damage from construction or soil stresses create
for design recommendations in locations where soil resistivities exceed
tiny defects, which may result in accelerated corrosion at the defect.
10,000 ohm-cm, or if there is no effective external coating on the tank.
Cathodic protection prevents corrosion at those defects by applying
The propane service line from the tank to the house also must be
DC current from an external source, forcing the tank to become
considered in the cathodic protection design, unless the service line
cathode. Application of sufficient DC current to the tank will prevent any
is plastic. All underground steel pipe should be externally coated with
corrosion from occurring. The two general types of cathodic protection
a corrosion resistant material. The service line should be electrically
systems are sacrificial and impressed current. Sacrificial systems are
isolated at the house with an insulating fitting or union. If service pipe
used when the amount of current required for the protection is small,
is less than 50’ in length, the tank anodes will provide sufficient current
such as in underground propane tanks. Impressed current systems
to protect both tank and pipe. For longer lengths of pipe, an additional
are more commonly used for large structures such as large diameter
anode may be required at the house connections.
pipelines. Electrical isolation of the tank from metallic piping systems
and electrical grounds is critical for the cathodic protection system’s
If another metallic material such as copper is used for service piping,
effectiveness.
the pipe should be electrically isolated from the tank at the fill pipe
connection. Copper and steel create a galvanic couple that will accelerate
How Sacrificial Cathodic Protection Works
corrosion of the steel tank when directly connected to copper piping.
Sacrificial systems work by creating a galvanic connection between two
Generally, copper piping does not require cathodic protection.
Mechanical Connection Under Dome
Fertile Soils, Clay, Sand, Gravel, Rocky
Soil Type
Sandy LoamAreas
5 to 5000 ohm-cm5000 to 10000 ohm-cm
Tank Cap.
(gal.)
SizeQty.AlloySizeQty.Alloy
1209#1H-19#1H-1
1509#1H-19#1H-1
2509#1H-19#2H-1
3259#1H-19#2H-1
50017#1H-19#2H-1
100017#2H-19#4H-1
Cathodic Protection Testing Procedure
150017#2H-19#4H-1
200017#3H-19#6H-1
Equipment Needed: Digital Voltmeter, Red Test Lead Min. 12’ Long
& Black Lead Min. 2’ Long, Reference Electrode (Copper/Copper
*Based on 90% effective external coating, 2 ma/ft2 current density, and 30-
Sulphate Half-Cell)
year Anode life.
Anode Installation
STEP 1: Using a digital voltmeter insert the red test lead into the Volt
1. Determine size and quantity of anodes from application chart.
jack of the meter and select the 2 or 20 volt DC scale. Clip red test
2. When a single anode is installed, it should be located near the
lead connector to an uncoated metallic area of the tank, preferably
tank center on either side of tank.
to the fill pipe multivalve. A good solid connection is very important.
3. When multiple anodes are installed, space them evenly around
(DO NOT connect to shroud).
the tank. See examples below.
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 (½ 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 ½ cell deeper into
4. Anodes are shipped in either cardboard boxes or multi-wall
the soil.
paper sacks. Remove outer container and bury the cloth bagged
STEP 4: Record all four meter readings on an appropriate form. The
anode. If anode is supplied in plastic bag, remove plastic bag
least of all four readings should be a minimum of -0.850v or more
before installing.
negative. {Note: If any of the four readings are below (less negative)
5. Install anodes approximately two to three feet from the tank and
-0.850v then the tank is not fully protected}.
at least as deep as the center line of the tank. Anodes work best
in locations with permanent moisture, so generally the deeper
Charging Reference Electrode
the better.
6. After placing the anode, stretch out the anode connection wire
STEP 1: Unscrew and remove porous plug end of new reference
and extend over to a connection point on the tank fill pipe.
electrode. Add deionized or distilled water to the copper sulfate
7. Cover the anode with approximately six inches of backfill and
crystals, filling electrode completely. The solution will turn blue in
pour 5 gallons of water on the anode to saturate the prepared
color and there should always be excess crystals at the bottom of
backfill. Water is necessary to activate the anode.
the tube. DO NOT USE TAP WATER.
8. Connect the anode wire to the tank with a low electrical
STEP 2: Replace porous plug end of electrode and place in an upright
resistance connection. Examples are threaded stud on the
position so that the porous plug end is facing in the down position
tank fill pipe or any accessible metallic connection point to the
and let stand for 1 hour before use. This will allow the porous plug
tank. All connections should be coated with a moisture-proof
to become completely saturated before use.
material.
Caution: Do not allow electrode to contact oil, road salts, or other
9. Ideally, the tank connection is made in the area of the tank fill
substances that may contaminate the solution by absorption
pipe within the covered dome. With access to the anode wire,
through porous plug. Do not allow electrode to freeze.
subsequent testing of the tank can include measurement of
anode output and verification of performance.
Distributed By:
10. Verify performance of the anode using an appropriate test
procedure.
()
Tulsa HQ: 1-888-800-MESA 6372
Houston: 1-281-445-8700
mesaproducts.com
11/2011-5000
Ebojfm!Dpy