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HomeMy WebLinkAboutPRODUCT APPROVALABOVEGROUNLbNDER, GROUND, 6,6MESTIC TAW 8." dome in black plastic or white galvanized steel COIMTAI r NEW! POWDURA° OneCure Super >Duraple Topcoat with Zinc Rich Primer"on Aboveground" POWDURA° Onecure"" Two coat system ro - • Zinc riche ox p per6es include: P y primer • Super durable TGIC polyester topcoat • Superior corrosion and edge protection ' • Patent"pending formulated primer and topcoat r • Dual service options for above or underground applications • Option #1: Ready -to -bury red oxide durable powder coating with black • polyethylene AGUG dome • Option 42: Aboveground option with steel 8" AGUG dome • All valves and float gauges are centered under dome • Fabricated to the latest A.S.M.E. Code, Section Vill, Division 1 • Registered with the National Board #72 liquid level outage valve orifice reduces refueling emissions • Vacuum pre -purged to save time, money and product 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, local and NFPA industry regulations- Cathodic Protection is required and coating must be continuous and uninterrupted and must comply with an local, state or national code. www.TrinityContainers.com Call Toll Free: 888-558-8265 TRINITY'O Containing Our World's Energy' o w x w � J U.OUT, o DIAM ]w 0 0 r- 0 LEG WIDTH General Specifications Confo s to the latest edition of the ASME code for Pressm Vessels, Section Vill, Division 1. Complies with NFPA „I B. Rated t 250 psig from -20' F. to 125' F. All tanks may be evacua ed to a full (14.7 psi) vacuum. Vessel 1'-inish: Coated with epoxy red powder. ( Tanks coated with thE I epoxy powder must be buried). For Aboveground use, tanks m,lay be coated with TGIC powder. Applicec ble federal, state or local regulations may contain Specific requirements for protective coatings and cathodic protect on. The purchaser and installer are responsible for complijInce with all federal, state or local regulations. - - WITHDRAWAL VALVE OTICE` FLOAT GP. GAS ANODE GAUGE CONNECTION FILLER J VALVE g % SERVICE! NAME MULTIVALVE PLATE RELIEF VALVE FITTINGS LAYOUT UNDER DOME AGUG VESSEL DIMENSIONAL INFORMATION All vesse s dimensions are ap roximate WATE OUTSIDE HEAD OVERALL OVERALL LEG LEG WEIGHT QUANTITY FULL PER CAPAC TY DIAMETER TYPE LENGTH HEIGHT WIDTH SPACING LOAD STACK 120 w' . 24" Ellip 5'- 5 13/16" 3' - 0" " 10 1/8 3' - 0" 245 Ibs. 96 12 454.2 L 609.6 mm 1671.3mm 911.4 mm 257.2 mm 914.4 mm 111.1 kg. 250 w'° 31.5" Hemi 7'- 2 1/2" 3' - 7 1/2" 12 3/4" 3' - 6" 472 Ibs. 63 9 946.3 L 800.1 mm 2197.1 mm 1104.9 mm 323.9 mm 1066.8 mm 214.1 kg. 320 wl'. 31.5" Hem! 8' -11 3/4" 3' - 7 1/2" 12 3/4" 4' - 0 1/4" 588 Ibs. 45 9 1211. L 800.1 mm 2736.9 mm 1104.9 mm 323.9 mm 1225.6 mm 266.7 kg. 500 w . 37.42" Hem! 9'- 10" 4' -1 7/16" 15" 5' - 0" 871 Ibs. 30 6 1892. ]L 950.5 mm 2997.2 mm 1255.7 mm 381.0 mm 1524.0 mm 395.1 kg 1000 w1g. 40.96" Hem! 15' -10 13/16" 4' - 4 5/16" 16 1/4" 9' - 0" 1729 Ibs. 15 5 3785. 1L 1040.4 mm 4846.6 mm 1344.6 mm 412.8 mm 2743.2 mm 784.3 kg Rev: Jan.'27, 2016 Why Tanks orrode Undergroun steel tanks corrode due to an electrochemical reaction between the ank and the surrounding soil. The process of corrosion occurs due t'11 small voltage differences on the steel surface that result in the flow o � 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, corrosion circuit: Where currentflows from the soil to the tank, no corn lion occurs. The progress of corrosion Is determined by the amount o ' current flowing between the anode and the cathode and whetherthe I it of the anode/ cathode remain constant overtime. Corrosion rat( are generally.higher in wet soil environments since the conductivity o the soil promotes the flow of DC current In the corrosion circuit. �Corroslon generally exhibits itself on underground tanks In either a general overall rusting or more commonly, a pltting attack. Pit locations may result fro metallurgical conditions of the steel suraface or soil Variations such as rocks, salts, fertilizer, moisture concentration, oxygen concentration, to. ,a :..• :: �... Prevenfing Corrosion on Protecting underground ._. _F. tanks from corrosion is easily achieved bythe use Of two commonlyappiled Protection methods: external coating and cathodic protection. These two methods complementary and should be used in conjunction with the other. An effective external coreventing ating Insulates he steel from the soil environment, thus protective Iflow of corrosi n current from the anode to the cathode. An eft ctive extemaicoav cad protectover99%ofthetanksurfacearea. However, no coating is perfe' t Damage from construction or soil stresses create tiny' defects, which'may result in accelerated corrosion at the defect. 'athodlc protect101 prevents corrosion at those defects by applying )C current from in external source, forcing the tank to become athode. Application of sufficient DC current to the tank will prevent any orrosion from occ `rring. The two general types of cathodic protection Vstems are sacrifi ial and impressed current. Sacrificial systems are sed when the amount of current required for the protection is small, ich; as in undergr and propane tanks. impressed current systems e more commonl i used for large structures such as large diameter pelines. Electrical isolaffon of the tank from metallic piping systems d electrical group s is critical for the cathodic protection system's activeness. Iw Sacrificial Gat ,odic Protection Works adficiai systems prk 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 meals 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 N. This alloy should be used for soil applications over 10,000 ohm -cm resistivity. The two most common anode sizes used for underground ne tanks are 9 lb. and 171b. The size designation,relates to the meal 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 backflll. The anode and backfill is then packaged in a cotton bag and:elther a cardboard box or Paper bag. Actual shipping weight of these anodes with backflll is 27 lb. and 45 lb. Application Recommendations Magnesium anodes can protect underground tanks in most soil conditions. The H-1 allay is generally very effective. The following chart Provides size and quantity recommendations for various 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 Tvil Ferti�eSoilsClay Sand, ©' Rocky Mechanical section Under Dome Tank Ca ' =;5 to 000 oil m-gym =«: 5000 to 10000 ohm -cm i9ai)i?er ity� �K111io! = Size Qty. Alloy 1 H-1 H-1 250 FRIEN=t Nl m-, a9# 2 H-1 325 ±� h ti i„ 2 H-1 1000 }?< "2 K mF( t sc 9# 4 H-1 150017#r2 fN1f 9# 4 H-i 2000 I'i `x17#4 ;:T3< R=lIT I:? 9# 6 H-1 I*Based on 90% 11 ffective external coating, 2 m&V current density, and 30- yearAnode life. f Anode Installation 1. DetermIni 'size and quantity of anodes from application chart. 2. When a s gle anode is installed, it should be located near the tank cent � on either side of tank. 3.When mu tiple anodes are installed, space them evenly around the tank. ee examples below. 1 anode, 2 anodes 4 anodes 4-Anodes ato shipped in either cardboard boxes or multi -wall paper sacl S. Remove outer container and bury the cloth bagged anode. If node is supplied in plastic bag, remove plastic bag before ins ailing. 5. Install anakep s approximately two to three feet from the tank and at least as as the center line of the tank. Anodes work best In location $ with permanent moisture, so generally the deeper the better.ig 6.After pthe anode, stretch out the anode connection wire and exten over to a connection point on the tank fill pipe. 7. Cover the node with approximately six inches of backfill and pour 5 gal ns of water on the anode to saturate the prepared backfiii, 1A ter is necessary to activate the anode. 8. Connect t �111, anode wire to the tank with a low electrical resistance 'i�connection. Examples are threaded stud on the tank fill pi ae or any accessible metallic connection point to the tank. All b nnections should be coated with a moisture -proof material. � 9. Ideally, th tank connection is made in the area of the tank fill pipe withli the covered dome. With access to the anode wire, subsequer testing of the tank can Include measurement of anode outl It and verification of performance. 110.Verify pe 'I rmance of the anode using an appropriate test procedure.', 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 a 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 blacktest lead into the Common jack an the meter, and connect the opposite end of the lead to a charged reference electrode (1/2 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 Y? 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 an any 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 approximately 10 PSIG. ghformation LV34'3TRV9 ""' F�pmmu.�' /az" 10 PSIG Ov 9 00 flat1,500,000Mexlinum flow based on Intoanigher then the regulator selling end delivery pressure 20% lower than the regulator Boiling Rnd delivery pressure 20°,5 lower than the golfing. accurate first stage regulation In two -stage bulk tank systems. Reduce tank pressure to an ate pressure of 5 to 10 PSIG. Also used to supply high pressure burners for applications like furnaces or boilers. Also Incorporated In multiple cylinder Installations. inq Onf®rmati®n YS'F.NPT '/a" F. NPT F. POL Yes 1 2,500,000 Lvalo,rRss I '/" FNPT I ° 1-5 I 1a Fan When uped for 0nel stage pressure Control, must ellhor incorporate integral relisfvaive or separsla relief valve should be specified in accordance with NF fA Pamphlet 58. " Maximl Row based on Inlet pressure 20 PSIG hlgherthan the regulator setting and delivery pressure 2o% lower than the setting. to reduce first stage pressure of 5 to 20 PSIG down to burner pressure, normally 11" w c. iedium commercial installations, multiple cylinder installations and normal domestic loads. ng Information rrT.Y ipY Yl, LV4403' 46 +/a" R NPT ID 1°w.c.o36R" at 10 9"to 13"3/" F. NPT PSIG w c Ovar Inlet 935,000 LV4403 66 Inlet LV440316R• F. NPT 'sarkmour Idesign "Maximum low based on 10 PSiG inlet and g" w.m delivery pressure. The LV3-03BR Back Mount Regulator Is designed to reduce first stage pressure of 5-10 PSIG down to burner p ssum normally 11" w.c. Designed as a second stage regulator for smaller applications with flow requirem nts up to 450,000 BTU/hr. and are ideal for homes, mobile homes, and cottages. Order nBnf®rmation z2" F NPT rz t•.Ivr t 11" W.c. At 10 " LV3403e46R W RNPT �/2ll PSIG Inlet 9 w c 3 Over Inlet 450,000 U� Maximu flow based on 10 PSIG Inlet and 9" Mo. delivery pressure. LISTED tita� f