Vessel Construction

Forming Steel

The fabrication process beginswith the rolling of steel that meetsASTM specifications. Steel platesfroml/qto 1% inch are rolled toform the rigid shell. Steel Platesare formed, fitted, and weldedcreating a vessel of superiorstrength. Throughout themanufacturing process ri goroustesting and documentationprocedures ensures comPliancewith the most stringent ofindustry standards.

ASME Code Heads

ASME Code heads are usedwhen a vessel is required tobe fabricated to the ASME Code.ASME vessels incorporate theASME 2:1 semi-elliptical headas standard design, makingthem more resistant tointernal pressures.

ASME flanged and dishedheads can also be used butrequire thicknesses greaterthan elliptical heads for thesame oressure and diameter.

Few names in the field of ASME Pressure Vesse/ manufacturing are

as widely respected as Highland Tank. Highly qualified craftsmen,skilled in carbon steel and starnless steel fabrication, take pride intheir work - every weld, grind, and polish is flawless. An author-ized inspection agency monitors all facets of production, so youknow the job is done right the first time, every time.

BuilttoASME Code, SectionVlll, Division I

Welding

Certified welders must be quali-f ied to strict welding proceduresin accordance with ASME Code,Section lX. Their procedures arecontinually monitored and certif i-cations maintained.

Welding Procedures

. Submerged Arc Welding (SAW)

. Shielded Metal Arc Welding(Stick/SMAW)

. Gas Tungsten Arc Welding(Ti9/GTAW)

. Gas Metal Arc Welding(Mig/GMAW)

. Flux Core Arc Welding (FCAW)

ASME Code requires f ull penetra-tion butt welds on all vessel jointsand seams. With several approvedwelding methods, Highland em-ploys the one that achieves thisrequirement with the best resultsfor each particular vessel. In addi-tion, the efficiency of a joint isbased on the type of weld andthe degree of radiography used.

Fittings, Flanges, and Manways

Fittings in various sizes and styles(NPT and flange) enable connectionto external piping systems and ap-purtenances. All carbon steel ANSIflanges are rated based on theirclass and temperature; A class 150(150#) flange is rated for 285 psi at100 't but only 170 psi at 500 "F.

Full-fillet welds are used to attachfittings, flanges, and nozzles tovessel shells and heads.

Vessels 36" in diameter and largerare provided with an 11" x 15"elliptical manway for internal accessand inspection. Vessels with internallinings require either a minimum12" x 16" or a 14" x 18" manway.ln addition, 16" , 20", and 24"round manways are available.

ASME Testing and Inspection

Various conventional and ad-vanced nondestructive examina-tion methods are used for theinspection of pressure vessels bycertified inspectors. Visual orSurface Examination detects anydiscontinuities and defects thatare open to the surface or arevery near the surface. In contrast,Spot to 100% Radiography orVolumetric Examination candetect conditions that are locatedwithin the weld or the steel.

ASME pressure vessels are testedto 1.3 times the working pressureas stipulated under Section Vlllof the ASME Code. Additionally,each vessel is filled two-thirds fullof water and tested at the normalworking pressure with all valvesclosed, and shall not lose morethan one-half pound pressure in24 hours. A manufacturing certifi-cate is filed with the inspectiondepartment having jurisdictionthat certifies that the foregoingtests have been made.

15

at a ClanceOrientation:Vertical or Horizontal

lnstallation:Aboveground or Underground

Diameter:6" to'12'-0"

Length:Up to 70'-0"

Maximum Weight:70 Tons

Steel Rolling:Up to 1 1/4" thick x l20" wide

Material:. Carbon Steel: 5A516 GR70 - Pl

. Stainless Steel: Type 304,304L,316, and 3161 - Pg

Finishes:. No. 1 - Hot rolled, annealed

and passivated-3/8" and thicker. No. 28 - Cold rolled, annealed,

pickled & passivated withadditional pass throughpolished rollers

Penetrations:. Threaded full couplings -

up to 4" diameter. Flanged fittings - 1/2" and up

Manways:

. 11" X 15" elliptical manwayis typical for an inspectionopening

. All lined vessels requirea 12" X 16" minimumelliptical manway

Surface Preparation:ssPc sP-6, 5P-'t0

Internal Linings:. Epoxy Phenolic. High-solids Epoxy. High-solids Polyurethane. Zinc-Epoxy

. Vinyl Ester

. Calcium Aluminate Cement

. Rubber, PVC, and othersheet linings

External Coatings:. Red Oxide Primer. ZincPrimer. Gray Alkyd Shop Primer. High-solids Epoxy/

Polyurethane Finish Paint

External CorrosionProtection Systems:. HighGuardr ACT-100-U@r STI-P3@

Testing:Radiography - 1O0o/o and RT1to RT4

Tank Support Systems:o Horizontal* UL Saddles

. Vertical* Ring Bases* Angle Legs

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Chilled Water Tanks

Applications

Chilled Water Tanks (CWT) areused in conjunction with largeHVAC installations, resulting infewer cycles of the compressorand better temperature controloverall. The chilled water is usedto cool and dehumidify air insizable commercial, industrial,and institutional facilities.At high-tech data centers, chilledwater storage tanks are requiredfor uninterrupted cooling ofcomputer systems and associatedcomponents, such as telecommuni-cations and storage systems.

A properly sized CWT adds thenecessary volume to "buffer" thecooling system and allows it tooperate at peak efficiency. Whenapplied to contemporary chilledthermal storage technology, CWTallow the user to time shift theelectrical load of the system fromthe peak day periods to off peaknight time periods.

Standard Features

. Manufactured to ASME Code;standard design pressureis 125 psi. (See p.23forstandard sizes)

. 12" X 16" minimum ellipticalmanway.

. Standard connections from2" to 3" NPT;4'to 8" flanges.Exterior gray alkyd shopprimer.

Interior - NSF approved forpotable water:- H i gh-tem perature epoxy

phenolic coating- Cement Lining

Options

. Vertical Tank Support Systems* Ring Bases* Angle Legs

r External thermal insulation* Spray-on polyurethane

foam with acrylic sealer(R16 @ 2")

* External fiberglass batt withmetal jacketing (RB @ 2")

Day In, Day OutPerformance!

Chilled Water Tanksare designed for chilledwater systems withinsufficient watervolume capacity,in relation to thechiller capacity.These tanks increasethe capacity of thechilled water systemand stabilizethe return watertemperature.

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Hydropneumatic Tanks

Hydropneumatic Tanks (HPT)are ASME vessels that containboth water and air under ores-sure. The compressed air acts asa cushion that can exert or ab-sorb pressure as required. Asmall air compressor may beused to replenish the air volumeperiodically as it is absorbedinto the water.

Large hydropneumatic tanks areusually horizontal and with vol-umes of 2,000 gallons or more.Normal operating pressure fora water system is 60 to 75 psi.,therefore common design pres-sure for a hydropneumatic tankis 100 psi.

HPT provide an adequate"quick demand" water supplyand help regulate proper sys-tem pressure range, both neces-sary for the efficient operationof a water supply system.

They are used in large capacitypumping systems as "buffertanks" to control surges causedby pump start-ups and shutdownsand absorb water hammer shocksdue to rapid valve actuationseliminating catastrophic failureof pipeline, pumps, valves, andsystem control loss. Other com-mon applications are in wellwater systems and fireprotection systems.

HPT are lined with epoxy orpolyurethane potable waterlinings. They are often locatedaboveground or underground,with one head protruding into a

vault or basement and all of thefittings are located on thathead. Vessels located under-ground are furnished with ad-vanced corrosion protectionsystems utilizing a dielectriccoating and optional cathodicprotection system.

Length 24 847266423630

Vessel Diameter

48 54 60 96 '120 144

210 300 4001408536

830655s0017511048

44531521513050 980 1215 1480

1 69572 155 250 370 515 1125 1395

29018084 420 590 785 1010 1275 1570 1905 2679

475 660 880 1 130 1420 1750 2120 2966 4008

108 225 730 970 1250 1570 1930 2330 32s3 4384

120 250 1065 1370 1715 210s 2540 3540 4760 7828 1 1840

132 275 435 1 160 1490 1 860 2280 2755 3827 51 36 8415 12686

,IM 300 470 690 950 1255 1610 2010 2965 4114 55122460 1 3532

155 305 507 743 1022 1349 1729 2152 2638 3177 4407 s888 9591 14378

796 1094 1443 1848 2815 3380 4695 6264 10178 15224

58135'l180 1 166 1537 1957 2446 3600 4983 6640 10766 16070

192 376 618 1 238 1 631 2086 2593 3171 381 1 5271 7016 1 1353 16916

204 399 655 954 1310 1725 2205 2739 3349 4023 5559 11941 17762

216 423 692 1 007 1 382 1819 2886 3526 4234 5847 12528 18608

228 729 1060 1454 1913 2443 3033 3704 4446 6135 8144 13116 19454

471 766 1113 1526 2007 2562 3180 3882 4657 5423 8520 1 3703

1166 1589 2101 2681 3327 4869 6711 8896 14291 21146

264 519 840 1219 1670 2195 2800 3474 s080 6999 9272 14878 21992

276 543 877 1272 1742 2289 2919 3621 4415 5292 7287 15466 22838

288 567 914 1325 1814 3038 3758 4593 5503 7575 10024 16053 23684

591 951 1377 1886 2477 3157 3914 5715 7863 10400 16541 245304770

1 9581430615312 2571 3276 4061 4948 5926 815't 10776 17228 25376

1025 1483 2030 2665 339s 5125 6138 8439 11152 17816 26222

336 663 1062 1536 2102 2759 3514 4355 6349 8727 1 1528 18403 27068

687348 1 099 1589 2174 2853 3633 4502 5481 6561 9015 1 1904 18991 27914

360 711 1136 1542 3752 4649 5659 6772 9303 19578 28760

372 734 1173 1 695 231 8 3041 3871 4796 5937 6984 9591 12656 201 66 29606

1210 1748 2390 31 35 3990 601 4 7195 9879 13032 20753

396 1247 1800 2452 3229 4109 5090 6192 7407 10167 1 3408 21341 31298

408 805 1284 1853 2534 3323 4228 s236 7618 10455 13784 21928 32144

420 829 1321 1906 3417 4347 s383 6548 7830 10743 14160 22516 32990

432 852 1 358 I 959 351 1 4466 5530 6725 804'f 11031 14s36 23103 33836

876 1395 2012 2750 4585 5677 6903 82s3 'r 1319 14912 23691 34682

1432 2065 2822 3699 4704 7081 8464 11607 1 s288 24279

23

Notes:1. Dimensions are shown in inches; volume in gallons. Lengths shown are for straight shell length only.2. Larger volumes/diameters/lengths are available. Please contact factory for assistance.

Exceptiona I Eff iciencyand Economy!

Hot Water Tanks (HWT)are used in commercialbuildings, institutionalfacilities, and assortedindustries that requirea constant supply ofhot water. Water istypically heated andstored in this ASMEvessel during periodsof low demand therebyproviding an adequatesupply of hot waterduring periods ofmaximum demand.

Hot Water Tanks

Applications

o Apartment and CommercialBuildings

. Hosoitals

. Hotelso Institutional Facilities

* Schools, Universities,Hospitals, Prisons

. Industrial Processes

. Laundry Facilitiesr Restaurants. Sports Complexes

HWT can be equipped withall the necessary connectionsrequired for installation withmost water heaters, boilers,or other water-heating devices.They are available as verticalor horizontal type in a widerange of sizes. We can manufac-ture HWT to our standardspecifications or custom designfabrication for those toughprojects. (See p. 23 forstandard sizes).

Standard Features

. Manufactured to ASME Code.Standard operating pressuresrange from 60 to 75 psi; stan-dard design pressures are 100,125, and 150 psi.

. 12" X 16" minimum ellioticalmanway.

. Standard connections from2" to 3" NPX 4" to 8" flanges.

. Exterior gray alkyd shop primer.

. Interior - NSF approved forpotable water:- High-temperature epoxy

phenolic coating- Cement Lining

Options

Tank Support Systems* Horizontal - UL Saddles* Vertical - Ring Basesor Angle Legs

External thermal insulation* Spray-on polyurethane foamwith acrylic sealer (R16 @ 2")* External fiberglass batt withmetaljacketing (R8 @ 2,,)

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Fire Protection Tanks

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Fire Protection Tanks (FPT)

are hydropneumatic waterstorage tanks specificallydesigned for use in privatef ire protection systems.

These ASME oressure vesselsare required by fire codes inmany commercial, industrial,and institutional buildings foruse with automatic sorinklersystems for fire suppression.FPT are designed, fabricated,tested, inspected, and in-stalled in accordance with theNational Fire Protection Asso-ciation NFPA Standard No. 22,"Water Tanks for PrivateFire Protection."

During normal operation, thisASME oressure vessel is 2/3filled with water and thenpressurized with air to 125 psi.FPT can be located under-ground with all of the fittingslocated on one head that pro-trudes into the basement or a

vault. The outlet flange is lo-cated at the bottom of the ves-sel near this head and projectsa minimum of 4" into the ves-sel. A water-stoo with link-sealprevents water intrusion.

FPT are fully compliant withfactory applied internal andexternal coatings with optionalcathodic protection system onthe buried end of the vessel.

HighDRO@ Water Storage Tanks are strong, impermeable,and, as opposed to concrete or plastic storage tanks, eventhose reinforced with fiberglass, they are 100%o recyclable.

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Tcugh, ReliableTanks for Water Storage

ilignDnfi'Tanks

HighDRO@ Tanks were developedby Highland Tank with the aim ofsatisfying the ever-increasing needfor safe and sanitary storage ofwater. Using modern steel fabri-cating technology, Highland hasdeveloped the most cost effectivesolution to your water storageneeds without compromising qual-ity, durability, safety, or hygiene.

Applications

HighDRO@ Tanks are atmosphericstorage tanks designed specificallyfor storage of Potable Watel FireProtection Water, Wastewater, andRai nwater. These orefabricatedtanks range in volume from 185 to60,000 gallons and are manufac-tured for a wide range of munici-pal, commercial, institutional, andindustrial applications.

. lnstitutional Facilities- Schools- Hospitals- Prisons

. Hotels, Resorts, and Casinos

. Aoartments

. Rural Housing Developments

. Campgrounds

. Farms

Advantages

HighDRO@ welded steel tankscan satisfy most water andwastewater storage appl ications.Whether constructed of coatedcarbon steel or stainless steel,rugged and reliable HighDRO@Tanks are inherently resistant toalmost all environmental threatsas well as corrosion.

HighDRO@ water tanks can beinstalled aboveground or under-ground. Due to their shop-fabri-cated design, HighDRO@ Tanksoffer a great number of advan-tages over f ield-fa bricated tanks.

Features

. Safe hygienic water storage

. Unaffected by ultra violetor light penetration

. Rugged and simple designs

. Transportable to remotelocations

. Easy and quick to install

. Shop fabrication minimizesfield instal lation requirements

. Reduced project lead timefrom inception to completion

. Accessible to restricted places

They are impermeable, strongerthan fiberglass tanks, and, as op-posed to concrete or plastic stor-age tanks, even those reinforcedwith fiberglass, they are 100%recyclable.

Compliance

HighDRO@ Tanks are manufac-tured to stringent standards.HighDRO@ Tanks used for storageof clean water are typically ofsing le-wa I led constructioncomplying with recognizedwater tank codes such as:

. American Water WorksAssociation AWWA D100 -"standard for Welded Steel"

. National Fire ProtectionAssociation NFPA StandardNo. 22, "Water Tanks forPrivate Fire Protection"

. National Sanitary Foundation(NSF)

Additional ly, HighDRO@ Tanksused for storage of wastewatercontaining flammable or com-bustible liquids are typicallydouble-walled construction inaccordance with Underwriters'Laboratories Inc. StandardsUL-58, UL-1746, and UL-142.

Highland Tank's accessory line is

designed to augment our wideselection of ASME Pressure Vesselsand Water Storage Tanks, makingit easy to quickly and efficientlyturn any of our vessels and tanksinto a complete operating system.Take the guesswork out of yourinstallation with the use of oneof our comprehensive masterinstallation kits.

1. Hold-Down Straps - Designedto secure vessels or tanks in areaswhere high water levels may resultin flotation. Hold-Down Straps areavailable in four different designsto accommodate specific installa-tion requirements: Standard Steel,Safety, Dead-Men, and Polyester.(See pp. 52-55 for details).

2. Concrete Deadmen Anchors -

Deadmen help anchor under-ground vessels or tanks in installa-tions in which there is potentialfor high water. They are used withour standard underground storagetanks from 500 to 50,000 gallons.(See p. 53 for details).

3. Tank Support Systems -

These systems are designed tosupport the vessel or tank, keepit stationary, and elevate that tankto minimize corrosion concernsand allow for easy visual inspec-tion. Tank Support Systems areavailable in multiple designs toaccommodate specific installationrequirements: UL Saddles,Supports, Skids, Legs, and Bases.(See pp. 56-60 for details).

4. Insulation Systems - Selectionincludes external batt with metaljacket, external spray-on insula-tion, or injected insulation.(See p, 61 for details).

5. Ladders, Stairs, Platforms, andWalkways - Internal and externalladders, stairs, platforms, andwalkways are designed to comPlywith strict OSHA specifications.

Mounting brackets and otherstructural accommodations canbe factory-fitted to facilitatefield installation.(See pp. 62-63for details).

6. ASME or Standard Manways,Extensions, and Tank-Top Sumps withDouble Ring Manways - Manwaysprovide access to the tank. Standardmanways include a bolted cover andgasket. The cover provides a conven-ient location for fittings. Extensionsand Tank-Top Sumps with DoubleRing Manways are project specific.(See p. 64for details).

7. Grade Level Manways (GLM) -

Designed to AASHTO H20 require-ments. Each manway is constructedof 436 steel plate from 10 ga. to1/4" thick, with lids of 3/8" rein-forced checkered steel plate. RoundGLMs are available in sizes rangingfrom 12" to 48" diameter. Rectan-gular GLMs are available in widthsfrom 48" to72" and lengthsfrom 48" to 150".(See p. 65 for details).

8. Electric, Steam, or Hot WaterThermal Fluid Heaters-These provide temperature controlfor heat sensitive fluids.

9. Complete Pump System Packages -

These packages can be eitherplatform or tank mounted.

10. Overfill Containment Chamber -

Overf i | | protection conta i nmentchambers with or without lockinglids are available. A small hand pumpis also available for returning anyspilled product to the tank.

11. Alarm and Control Panels -These provide a comprehensivepanel selection for leak andlevel alarm.

12. Leak and Level Sensors -Leaks are prevented by a widevariety of sensors used to detectleaks or liquid levels.