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HomeMy WebLinkAboutDOMESTIC TANKG AN 1ti, 'ply d. N.EW11 81'-dome in black -plastic •or, white galvanized steel- aIr' eriD.urable To at fPUVIID.UR1A�°OneC:ure. pco thilinciRchliPrmer on,Abgvegrtbpnd} P,OWDUR,A®IOneCui e"`;Twotedatosysteinl,proper ies+include:, Y?- Ziiic.r,fcMI_0.x @?ruiner, � Su{�..errii'uTal.leTGlCilio{'yesteCYo.peozh Supe6igrrt�or+iosionanilkedgeihrotectioul • - tPate+iti� en�l'irig fcirmlll'atetl+,p'uiriier• a+tv topcoah • Dual service options for above or underground applications • Option tt1; Ready -to -bury red oxide durable powder coating with black • polyethylene AGUG dome" • Option 42i"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 • tt72 liquid- level outage valve orifice reduces refueling emissions • Vacuum pre -purged to save time, money and product 'Applicablefederal, 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.TdnityContainers.com Call Toll Free: 888-556-8265 ' TIN1 Oentarning OurW-,dd's 6nergy- WIDTH General Specifications Conforms to the latest edition of the ASME code i Pressure Vessels, Section Vill, Division 1. Compi NFPA 58. Rated at 250 psig from -20' F. to 1280 F. All tanks evacuated to a full (14.7 psi) vacuum. Vessel Finish; Coated with epoxy red powder, ( T With the epoxy powder must be buried). For Above tanks may be coated with TGIC powder. Applicable federal, state or local regulations may specific requirements for protective coatings andl Protection. The purchaser and installer are respo compliance with all federal, state or local regulati All vessels dimensions are a WATER OUTSIDE CAPACITY DIAMETER AGUG VESS ies with i maybe anks coated ground use, contain cathodic risible for ons, HEAD I OVERALL TYPE LENGTH DOME I I I I I I I I I I I I II 11 I I I I U LEG SPAr.IM12 ' WITHDRAWAL FLOAT �•NOTICE` \ VALVE GAUGE r LP. G4S . ANODE CONNECTION ' FILLER O VALVE SERVICE / MULTIVALVE NAME -, �- PLATE RELIEF VALVE FITTINGS LAYOUT UNDER DOME DIMENSIONAL INFORMATION OVERALL I LEG HEIGHT f WIDTH 120 wg. 464.2 L 24" Ellip 5' - 5 13/1i6" 3' _ p" 609.6 mm 1671.3mm 911,4 mm 250 wg. 31,5" Hemi 7' - 2 1/2" 3'^ 7�1/-2° 946,3" L 800.1 mm 2197.1 mm 1104.9 mm 320 wg. 1211.2 L 31.5" Hemi 3/4" 3' - 7 1/2" 800.1 mm ' 2736.9 mm 1104.9 mm 500 wg. 1892.5 L 37.42" 950.5 mm Hemi �� 9 .10 , 2997.2 mm 1255.7 mm 1000 wg. 40.96" Hem! 15' -10 13/16" 4' 4 5/16" 3785.0 L 1040.4 mm 4846.6 mm 1344.6 mm 10 1/8" 2.57.2 mm 12 3/4" 323.9 mm 1.2 3/4" 323.9 mm .15" 381.0 rnm 412.8 rnm LEG. . SPACING 3'-0" 914.4 mm 1066.8 mm 4' - 0 1/4" 1225.6 mm 5'-01' 1524.0 mm 9'-0" 2743.2 mm WEIGHT 245 Ibs. 111.1 kg 472 ibs. 214.1 kg, 588 lbs. 266.7 kg. 87- � --._ 291119 1729 lbs. 784.3 ka QUANTITY FULL PER LOAD STACK 96 12 63 g 45 g 30 .6 15 5 Rev; Jan. 27, 2016 a 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 locaion 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. I I Corrosion generally exhibits itself on underground tanksI in either a general overall rusting or more commonly, a pitting attack. Pit locations may result from metallurgical conditions of the steel surface or soil variations , etc. such as roc concentrationks; I salts, fertilizer, moisture concentration, oxygen Preventing Protecting tanks from easilyachie of two coma protection external cathodic These tw are cc and should conjunction other. i external coating insulates the steel from the soil environment, Chi. the flow of corrosion,current from the anode to the cathode external coating can protect over 99% of the tank surface ar no coating is perfect. Damage from construction or soil st tiny defects, which may result in accelerated corrosion at t Cathodic protection prevents corrosion at those defect DC current from an external source, forcing the tar cathode. Application of sufficient DC current to the tank v corrosion from occurring. The two general types of cathc systems are sacrificial and impressed current. Sacrifici, used when the amount of current required for the prote such as in underground propane tanks. Impressed cu are more commonly used for large structures such as I pipelines. Electrical isolation of the tank from metallic p and electrical grounds is critical for the cathodic protec effectiveness. Drrosion is I bythe use inly applied methods: Ming and protection. methods be used in with the i effective protective preventing An effective a. However, asses create s defect. applying become event any ►rotection stems are Is small, systems diameter systems system's How Sacrificial Cathodic Protection Works Sacrificial systems work by creating a galvanic connection) between two E 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 applicatlons 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. TheH-1 alloy. is generally very effective. The following chart provides size and quantity recom m endations 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 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. 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 multivalve. A good solid connection is very important. (DO NOT connect to shroud). STEP 2; Insertthe blacktest lead into the Common jack on the meter, and connect the opposite end of the lead to a chargedreference electrode (Y 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 Y2 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 and of new reference electrode. Add delonized 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 oll, road salts, or other substances that may contaminate the solution by absorption through porous plug. Do not allow electrode to freeze. Sall Type ren Tank Cap. 5 to (gal.) Size 120 9# 150 9# 250 9# 325 g# 500 17# 1000 1.7# 1500 17# _2000 17# eSoilsalay� •� ndy'Loam�.: 000 ohm -ern Qty. ' Alloy H-1 H-1 H-1. H-1 H-1 H-1 Sand; Gravel, Areas 5000 to 10000 i Size Qty. 9# 1 9# 1 9# 2 9# 2 9# 2 9# 4 9# 4 9# R 'Based on 90% effective extemal coating, 2 ma/ft2 current yearAnode life. Anode Installation 1. Determine size and quantity of anodes from app 2. When a single anode is installed, it should be I( tank center on either side of tank. 3.. When multiple anodes are Installed, space them the tank. See examples below. H-1 H-1 H-1 H-1 and 30-- i chart. near the ly around 1 anode 2 anodes 4 anodes 4-Anodes are shipped in either cardboard boxes or multi -wall paper sacks. Remove outer container and bury the Ic loth 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 con' nection wire and extend over to a connection point on the tank1fill pipe. 7. Cover the anode with approximately six inches of backfill and pour 5 gallons of water on the anode to saturate the 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) 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. ' .I 10_VPrifii narinr.r.n...... _r ��- Ideal for use as a first stage regulator on any instatlations requiring up to 1,500,000 BTU's domestic size ASME or DOT container in propane gas pressure to an intermediate pressure of approxtr�tateiy iT PSIG he regulator is factory set to reduce container (Ordeiron Nlin ©ir �r 6�i lG3TR ' � •a, ••pa LV34u3rave ''YV F.NPT W FNPT r/ax"I Over Outlet 10 PSIG 1,500,000 ivlaxlmum Oow based On inlet pressure 20 PSIG higher than the re ulator selling and delive n sellingand delive 8'�� vary pressure 20% lower than the setting. 9 9 ry pressure 20% lower than the regulalor 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 Into cylinder Installations, OiriiB�l�a�a� Owl®rr���i3®�u 44a'/z" F NPT Ya" F. NPT�" F POL YV F.NPT When used for line[ stage pressu with NFPA Pamphlet as. re control, must either incarpo " Maximum flaw based an inlet pressure 20 PSIG higher than the 9 W�, 1; =__ a p' a Designed to reduce first §tage pressure of 5 to 20 Ideal for medium commercial installations, multiple DirderDIMS onf o rm-lue n LV 403B4 LV1403p46 W F. NPT LVd4031346Rr LV4403a6G LVrhiO3t3G6R° W' F NPT •8eckmountdesign �n #28 WF NPT I Drill Maximum flow based on to PSIG Inlet and 9' 1vc. dalivery Yes I 2,500,000 Integral renal" valve or separate relief valve should be specined'in accordance ulator selling and delivery pressure 20% lower than the selling. down to burner pressure, normally 11" w;c. er Installations and normal domestic loads. 11" w,c. at 10 PSIG 9 W W.C. Over Inlet 935.000 Inlet The LV34038R Back Mount Regulator is designed to reduce first stage pressure of 5.10 PSlG down to burner pressure normally o 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, 2!:5� U nlf®u'uutiatiior, I S LISTED FNPT ' ta- "Nrl �11"wc.At10 Llr.'.403Bri6R s u/3z" 9° to 13" /a F NPT 1 PSIG Inlet w o. Over Inlet 450,00o CUL * Mazlmum flow based on 10 PSIG inlet and 9" W,c, l ellVery pressure. LisiEu Maximum Capacity of PE p'pe �vifh In Thousands of BTU a Cc1s Pressure per Hour of Liquefied Petroleum of 11.0 In. WC Gas and a Pressure Drop of 0.6 in. WC j (based on a 1:82 specific MOM- gravity goy) 187 1073 125 720 99 671 84 484 74 425 67 56 45 41 38 1391 1983 934 1331 740 627 35 383 325 286 257 236 218 204 497 421 370 333 gg 192 29 11 26 6 3563 2391 1054 1894 893 1605 78 14i 2 600 435 403 481 403 249 219 152 197 4724 10063 6755 765 2235 1978 108 376 376 948 854 781 723 676 7792 1634 1359 354 636 311 560 280 6351 5351 4535 3989 1232 1133 1054 989 3fi92 3044 2678 24]1 934 828 504 7S0 _°° A ate ... 207 2044 1910 _. ° • 'aa n 1797 -- 1581 1424 129 113 102 86 76 167 147 132 112 99 238 427 209 376 188 338 160 140 642 569 516 287 441 282 391 1207 1061 956 810 , 712 Maximum Capacity of PE Pp with a Gas Pre 1966 71300 19119 7586 1045 ° 886 779 14652 9835 6008 7790 6092 6602 4479 8807 20877 37614 14014 25183 11100 9408 8275 43429 29848 19946 23969 16905 20515 14869 18182 106963 71131 66339 47750 42000 68 63 89 81 66 64 126 76 70 116 107 100 y 8 . Cl 48 66 63 8 46 60 8 44 67 42 54 40 52 227 954 192 180 326' S03285 b42 587 94 89 169 160 269 255 88 162 244 81 1.46 233 78 140 76 934 644 544 508 478 453 431 411 224 394 216 379 In Thousands of BTU per Hour of Liquefied Petroleum Gas 5168ruh_1CFH re of 2�0 psi and a Pressure drop of 1.0 ised on q 1,82 specific aravlty nn.% psi 3418 3007 2707 2478 2295 2144 351 309 278 6316 6315 6556 8555 3510 5002 3213 4678 2975 2780 2617 202 2073 11348 9982 8988 8226 4239 7618 3962 7119 3729 328D 2953 14100 32054 12496 28194 11322 10417 9691 90.92 6700 8689 5894 5894 5307 5307 .� a 2538B • r� I 23234 21617 20108 18926 16647 14990 1356 1i92 1073 vv aoy 800 720 1lb �Ob 93 88� e° 84 °° ee Aa 1757 2503 1545 2202 1391 11 79 ]037 9g4 659 611 1983 571 537 608 484 SD 77 74 4498 3956 1680 1478 1331 1218 1128 3563 3019 2656 1054 992 989 627 599 5462 74 55, 551 12706 270 5232 11175, -070 2391 40S72169 2027 3596 3268 2997 2788 10063 1816 1783 1688 893 1605 853 1533 1g69 2 8829 8629 7502 6765 6182 5728 6350 ,350 2471 5036 284 2347 4239 2144 2060 1Q8 1985 Maximum Capaclty of PE Pipe In 4239 4331 4150 3988 Thousands of BTU q with a Gas Pressure) of 1O,O.psl and a Pressure Drop of 1 0 �siPetroleum Gp 516BTUh=1CFH (based on a' 7.62 speclno gravity, gas) 14234 9 7668 6414. 6642 18455 26296 1238388 17652 9812 13981 8316 11849 7315 47252 53960 31720 25123 21293 10423 18729 1 133476 37087 89601 29782 70967 25489 60148 22591 2 I _ 62905 4 1707 2213 `-- " ' I/0 it 3163 1946 2773 1753 2497 1485 2116 106 11; 8665 7334 4983 4487 3803 1862 3346 16; 301 16004 6500 14077 8890 12676 '5041 10743 4468 404 9449 85n Ph: 1-800-662.0208 0 Fax, 675.325,9407 ° Web: 4306 3787 3410 3121 cue 2890 41U 2701 44-2­g8 °' 5583 7954 4910 6997 4422 6300 2#42 06 2236 2899 2014 14294 12572 11321 .57066 10361 5340 9696 4990 46 261, 3720 17519 40376 15527 36514 14068 31980 12943 12041 8967 11297 8440 10671 7423 9458 6686 O O O 29267 27104 25329 23840 20970 8569 18882 AA 144 :et 134 •Ae 126 e�° 118 to as 1° " ee 830 7.69 719 677 111 640 106 609 101 97 93 1077 1534 997 7421 934 877 830 790 582 754 557 723 636 2751 2553 2386 328 1250 2246' 1183 1i25 1075 1030 695 990 3724 7787 3465 7212 6739 2126 2022 1931 1851 2560 1779 6343 6005 5772 5455 5227 2466 6024 2816BTUh=1CFH 7