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Home My WebLink AboutGAS PIPING SCHEMATICS`ANNED By sttudgcouw BOARD OF COUNTY COMMISSIONERS TANK SIZE: GALS. APPLICANCE — TYPE/SIZE Al A2 A3 A4 A5 A6 PIPING LENGTH & SIZE L1 %y FT. ` 1INCH DIA. L2 FT. 3 ' INCH DIA. L3 FT. ! INCH DIA. L4 FT. INCH DIA. L5 FT. INCH DIA. L6 FT. INCH DIA. L7 FT. INCH DIA. L8 FT. INCH DIA. L9 FT. INCH DIA. L10 FT. INCH DIA. L11 FT. INCH DIA. L12 FT. INCH DIA. Revised 7/22/14 BTU BTU BTU BTU BTU BTU PLANNING & DEVELOPMENT SERVICES DEPARTMENT Building and Code Regulation Division RECEIVED JUN 0 7 2018 ST. Lucie County, Permitting ST. LUCIE COUNTY BUILDING DIVISION REVIEWED FO OMPLIANCE REVIEWED BY DATE PLANS AND PERMIT MUST BE KEPT ON JOB OR NO INSPECTION WILL SE MADE. t 0111170(0r OiYc) (PIPE SIZE WAS TAKEN FROM THE 2W--FBC FUEL GAS CODE - TABLC 402-( )) of C) iy �� C_ FILE COPY Website: t ww.stiucieco.gov 2300 Virginia Avenue - Fort Pierce, FL. 34982-5652 Phone (772) 462-1553 FAX (772) 462-1578 a Mautinum Cahacity of P5 Pipe In Thousands of BTU per Hour of Liquefied PetroleuTt 7 018 with a Gas Pressure of ] 1.0 In,'AfC qnd a Pressure Drop of 0,6 In. WC {based on d 1,62 specific g(I gas) . Lucic County, errhi 1073 lag] 720 934 - - 67l 484 "+ 425 67 383 56 '325 60 286 - 46 257 �.. 4 38 c D DMINOR 9 26 1983 1331 740 1054 627 893 661 786 497 708 421 370 333 238 235 .2]8 218 2pq 204 ,� 242 ]69 152 4724 3247 1894 1605 1978 1272 600 1078 628 948 475 854 435 403 376 354 219 all .197 280 100b3 006 6755 6785 2608 5351 2232 4636 1978 3989 1792 1534 1359 1232 781 1133 723 1064 676 989 636 66D 604 3692 3044 2678 2411 2207 2044 1910 934 1797 828 76Q 1681 1424 129 113 102 12i 11 10 . _� 9 _ . 9 86 " ; �° 'Iot61 al r°�Fin" r .' 767 4 298 ' 147 204 132 76 112 99 68 63 68 B4 51 89 81 75 8 48 8 46 8 '44 — 7 - , 7 42 40 427 376 1N .160 70 66 140 .26 116 107 100 94 202 227 63 89 60 86 57 54 52 } 642 1207 569 1061 616 616 956 441 208 192 441 391 3bQ 180 149 IbD 182 87 146 78 140 76 134 810 712 642 587 644 08 478 224 � 216 Marlmum Capa0Ify of PE PIPS In 463 431 411 2516aiUh==tCFFi 376 Thousands of BTU per Hour of Liquefied with a Gas Pressure 2.0 Pofiroteurn of psi and a Pressure Drop (based on a 1.62 spealge of 1.0 psi Gas gravlly gas) 1966 11800 1319 7686 1045 6008 886 779 702i 695 •D ° IN 10 6092 623 471 431 '1 399 lilts "I'll, 14652 9836 14014 7790 6807 4033 3418 3007 2707 2478 8229,, 4432 3898 3510 2295 373 2i44 gal 1778 7u 8 15 87677 97514 1110D 19946 9402 8273 9408 8275 74511 16906 14869 3213 6316 5556 bOD2 4578 2976 4239 2144 2780 2018 2617 2302 2073 43429 1D6963 2 84826183 7 77131 13489 18182 16474 11848 9982 8988 822b 14100 12496 7618 7119 6700 b894 2073 66339 66939 40615 47760 42000 37820 11322 10417 32054 28194 25388 23234 9691 $092 8589 7612 6897• 6897 21517 20108 18926 16647 14990 236 1965 207 1142 D 18 1073 .1 : •00 168 139 126 470 °0 lt5 106 94 93 10 1767 2503 1545 2202 1391 800 1179 1037 7�4 855 611 871 637 792 88 5D8 84 80 77 74 r 4498 3956 1983 3663 1680 1478 391 8019 2666 •855 740 696 1218 1128 1054 992 659 939 b27 893 599 574 tl,5j r 5903 12706 6232 11175 4740 10063 2189 2027184 4D67 3596 3268 2997 2788 2616 2471 8529 7502 2347 2347 853 1533 1469 148 2 67561 6182 6726 5350 5036 2239 4636 214 2i44 2060 1986 Mmimum Capacity or PE Pipe In Thousands of BTU 4331 2S16HNh=iCFH 4150 3988 per Flour of Liquefied Petroleum Gqs wlfh a Gas Pressure of �10.0 psi and a Pressure Drop of 1.0 (based on a 1.52 specIDc gral gas) psi '2476 14234 i662 9565 1316 7668 1116 1 ' o 981 884 749 6S9 •D ° 6414 6642 5080 i0 603 '°. 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Code, Section Vill, Division 7 Begistered'wit1vthe National Board • #7'2Iiquid'level outage valve orifice reduces reiueljng•emissions TRINITY re- ur ed-tosavetime, money and product F Uacetum p. P 9 =' Apbllc�bJe federal;;s#ate 'or,(gcaj,rggulalions may.contain.specjlic_r.equit;emenlsfor: proieotive coatings and; catfiodiaprotecfior7. The Aurrhaserand instal(e'race'responsible ' forcolnplraf pe W h alP[ederal, state, local and NFPA industry. regulations. Cathodic ContainIng Our prAtection is,regwred and coating mustbe continuous and uninterrupted and must j eorrmpJy. Lvith:antlocal, state or national -code, t V vvwCall Toll Free: 888-558-8265 Cent""I"g Orir Wb ld's Eneegy�" 9 _General Specifications Conforms to the latest edition of the ASME code for Pressure Vessels, Section Vlll, 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. WITHDRAWAL FLOAT oncE' VALVE GAUGE u'' U5 ANODE CONNECTION ICJ ® ' FILLER O Ol)r_VALVE SERVICE/ MULTIVALVE �� FNAAME RELIEF VALVE FITTINGS LAYOUT UNDER DOME V c00CL,. LJJIVICiv,-jlUNAL INFORMATION All vessels dimensions are approximate WATER OUTSIDE HEAD OVERALL OVERALL LEG LEG WEIGHT QUANTITY CAPACITY DIAMETER TYPE LENGTH HEIGHT WIDTH SPACING FULL PER 120 wg. 454.2 L 24" Ellip 51.5 13/16" 3' - 0" 10 1/8" 3' - 0" 245 lbs. LOAD 96 STACK 12 609.6 mm 1671.3mm 911.4 mm 257,2 Mm 914.4 mm 111.1 kg, 250 wg. 31.5" Hemi 7' - 2 1/2" 3' - 7 1/2" 12 3/4" T - 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 3/4" 3' - 7 1/2" 12 314" 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" Heml V -1oil 4' -1 7/16" 1511 5' - 0" 871 lbs. 30 1892.5 L 950.5 mm 2997.2 mm 1255.7 mm 381.0 rnm 1524.0 mm 395.1 kg .6 1000 Wg. 40.96" Hemi 15' -10 13/16" 41.4 5/16" 16 1/4" 91.011 1729 lbs. 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, 2016 Why Tanks Corrode • 0 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 cu rrent 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 overtime. 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 surface or soil variations such as rocks, salts, fertilizer, moisture concentration, oxygen concentration, etc. Preventing Corrosion Protecting underground tanks from corrosion is easily achieved by the use of two commonly applied protection .I methods: external coating and cathodic I'protection. These two methods are complementary and should be used in conjunction j with the other. An effective external I 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 coating can protect over 99% of thetank surface area' However, no coating is perfect. Damage from construction or soil stresses create tl6y 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 currentto 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 1 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 area 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-om resistivity. The two most common anode sizes used for underground propane tanks are 9lb. and 171b, The size designation relates tothe metal weight. 10' of 1A2 TW insulated wire is attached to the anodes.I Anodes are then backfilled in a mixture of gypsum, bentanite, 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 generallyvery effective. The following chart provides size and quantity recommendations forvarious sizetanks 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 1 0,000ohm-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 createagalvanic 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: Insert the blacktest lead Into the Common jack on the meter, and connect the opposite end of the lead to a charged- reference electrode (X cell). STEP 3: Remove protective cap from the porous plug at bottom end of electrode. Pace 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 % 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 all road sells, or other substances that may contaminate the solution by absorption through porous plug. Do not allow electrode to freeze. Soil Type Fertile Soils, Clay, Sand, Gravel Sandy Loam areas Tank Cap, 5 to 5000 ohm -am Boca to 10000 ohm -am Size Qty. Alloy size Q ty. Alloy 120 9# 1 H-1 9# 1 , H-1 150 9# 1 H-1 9Q 1 ;H-1 250 9# ` 1 H-1 9# 2. IH-i 325 9# 1 H-1 9# 2 H-1 Soo 17# 1 H-1 9# 2 H-1 1000 17# . 2 H-1 9# 4 H-1 1500 17# 2 HA 9# 4 H-1 20D0 17# 3 H-1 9# s u_1 'Based on 90% effective external coating, 2 mal#2 currentdens�ty, and 30- yearAnode 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. ---i---anode 2 anodes 4 anodes ti p: •r� i 4-Anodes are shipped in either cardboard boxes or 'multi -wall paper sacks. Remove outer container and burythe 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 babkfill 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. 10.Verify performance of the anode using an appropriate test procedure. Ideal for us® as a flrat stsga regulator on any domestic size ASME or DOT container in propane gas installations requiring up to 1.500,000 S T U's per hour. The re Pressure to an intermediategulator is factory set to reduce container pressure of approximately 10 PSIG. Maximum Hots based on inlet pressure 20 PSIG hl her than there ulalorsalling and deliv 9.00 �,auu,uuu selling and delivery pressure 207. lower than the selling. j g M Pressure 201Y. lower than the regulator Provides accurate first sta F intermediate pressure of 5.ge regulation In tvvo-stage bulk tank t to 10 PQG. Also Usec to supply hl hsosn-QmsQReduce tank pressure to an industrial When used finalfor stage pressure conuoi, With NPPA Pamphlet as. must either incorporate integral muervaive or separate reGelvalve should be specified in accordance " Maximum flow based on Intel pressure 20 PSIG htgher than the regulalw setting end dative ry pressure 20°le lower than the selling. Idea9or mediumto ucomme ag Installations. Pressure f mutorin 0 PSIG downtoburner pressure, normally 11" W.O. UU, r ter pressure normally 11" 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. Rlydg�jng Qinfowmallon, ------------- Maximum flow based on 10 PSIG inlet and 9" mc,'delivery pressure. is Ud f[