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Complete valve solutionsfor the refining and petrochemical industries

API 600, 602, and 603gate valves

Globe valves

Check valves

Dual-plate check valves

HF acid valves

Triple-offset butterfly valves

Metal-seated ball valves

Resilient-seated ball valves

API 6D and 6A ball valves

Coker ball valves

Steam traps

1/4 60 (81500 mm)

Low emissions Easy maintenance Long and reliable service

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20 (500 mm) class 150 Torqsealvalve on cooling water isolation to the heat exchanger.

Leading the way...Velan is one of the worldslargest manufacturers ofindustrial steel valves,recognized as a leader in

quality and innovation.Founded by A.K. Velan in1950, our company leveragesadvanced engineeringcapabilities and innovation

to continuously expand ouroffering of industrial valves.

Today, Velan gate, globe,check, ball, butterfly, knifegate, and engineered severeservice valves are installed

throughout the world,handling diverse applications

in the power, oil and gas,refining and petrochemical,chemical, pulp and paper,cryogenics, mining,and marine industries.

Engineered solutionsVelans Engineering DesignGroup has vast experience,sophisticated software, and

testing tools that enable us to

find solutions to any customerchallenge.

Whether it is for valvesto handle liquid helium at-458F (-272C) in the worlds

largest particle acceleratorat CERN, Geneva; four-wayswitch coker ball valves tohandle one of the refiningindustrys toughest services;or valves for main steamisolation service in anoperating nuclear powerplant, Velan has beenselected by most of theworlds leading engineeringconstruction firms andindustrial end users. A long-standing commitment to

quality has kept Velan atthe forefront of industrystandards.

Velan holds all major indus-try certifications, includingASME Section III, ISO9001:2000, PED, and API 6D.Many prominent companieshave established partner-ships or global supplyagreements with Velan.

A global manufacturingleader

Velan uses the latest automa-tion technology, includingCNC machines and manyspecial-purpose transfermachines, enhanced byproprietary production tech-niques. Thanks to a widerange of equipment, we canefficiently handle highlycustomized orders as wellas large production runs.

Velan employs over 1,800professionals, the majorityof whom are located in NorthAmerica. International pro-duction centers are comple-mented by a global sales anddistribution network, offeringpersonal customer serviceand quick access to stockworldwide. Because cus-

tomer requirements for imme-diate deliveries have escalat-ed in the last few years,Velan has opened a numberof quick-ship warehouses inNorth America to supplement

the inventories of ourstocking distributors.

Total qualitycommitment

Velan is totally committed tooffering products and service

that exceed customer expec-tations. All Velan valves aredesigned and manufacturedwith an emphasis on lowemissions, safety, simple

maintenance, ease of opera-tion, and above all, long,and reliable service life.In fact, when a leading NorthAmerican repair shop recent-ly did an analysis on the reli-ability and repairability ofcommodity valves, Velan fin-ished first. Whether we aremanufacturing commodityvalves or specialty valves,we deliver excellent long-

term value to our customers.

A world leader in valve design,engineering solutions, and manufacturing

VELAN AT A GLANCE

History

Founded in 1950

Sales Over $400 million

People Over 1,800 employees

Production facilities 5 plants in North America

5 plants in Europe

3 plants in Asia

Focus

Entirely focused onindustrial valves

Product line Gate, globe, check, ball,

butterfly, and engineeredsevere service valves

Steam traps

QualityAll major approvals, including

ISO 9001:2000 (since 1991)

ASME N stamp for nuclearquality (since 1970)

API 6D

Total Process ImprovementProgram (including LeanManufacturing, Six Sigma)

Engineering capabilitiesExtensive engineering andR&D capabilities

Cycle test facilities

Stress analysis capabilities

Production capabilitiesLeader in automatedproduction

CNC machines

Multi-station transfermachines

Approval and acceptanceApproved by all majorcompanies in the marketsserved

ValueIndustry-leading perform-ance and low total costof ownership

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metal-seated valves andoffers greater strength andlonger service life.

Like all Velan valves, these

products are designed forsimple in-line maintenance,including our top-entry ballvalve with in-line replaceableseats.

Furthermore, Velan offers avariety of engineered valvesfor severe services in petro-chemical plants, including aleading range of coker ballvalves. Velans vast offeringof valves is well positionedfor high performance in

virtually every upstreamand downstream application.

API 600, 602, and 603 gate valves1/4-60 (8-1500 mm), ASME classes 150-4500Product catalogs: VEL-PS, VEL-SFV, VEL-CSV

Globe valves1/4-24 (8-600 mm), ASME classes 150-4500Product catalogs: VEL-PS, VEL-SFV, VEL-CSV

HF acid valves2-36 (50-900 mm), ASME classes 150-300Product catalogs: VEL-HFA

Check valves1/4-36 (8-900 mm), ASME classes 150-2500Product catalogs: VEL-PS, VEL-SFV, VEL-CSV, VEL-WCV

Metal-seated ball valves1/2-24 (15-600 mm), ASME classes 150-4500Product catalogs: VEL-MS, VEL-PBV

Triple-offset butterfly valves3-48 (80-1200 mm), ASME classes 150-600Product catalogs: VEL-BF

Dual-plate check valves2-60 (50-1500 mm), ASME classes 1502500Product catalogs: VEL-PQCV

24 (600 mm) cast steel gate valve inhydrocarbon service.

Resilient-seated ball valves1/4-24 (8-600 mm), ASME classes 150-600Product catalogs: VEL-BV, VEL-GPBV, VEL-VTP

API 6D and 6A ball valves1-64 (25-1600 mm)

Product catalogs: VEL-BV6D

Coker ball valves1/4-36 (8-900 mm), ASME classes 150-2500Product catalogs: VEL-CBV

Steam traps0-2600 psi (179 bar), 1,100F (593C)Product catalogs: VEL-ST

Velan has serviced the refin-ing and petrochemical indus-

tries since the early 1950s,building an installation base

that covers most majorrefineries and petrochemicalplants throughout NorthAmerica and the world.

Velan is a leader in thedesign and manufacturingof valves for the refining andpetrochemical industries,and offers:

API 600, 602, and 603 gate,globe, and check valves.

Quarter-turn valves fortough process applica-tions, including cokerball valves, Securaseal

metal-seated ball valves,and Torqsealtriple-offsetbutterfly valves.

Pressure seal, y-pattern,and forged steel gate,globe, and check valves,and steam traps.

Velan manufactures valvesin sizes up to 60 (1500 mm),

designed specifically for reli-able, low fugitive emissionsperformance in difficultservices in petroleum refiningapplications. Velan valvesrepresent over 50 years ofevolutionary improvements

that have helped us perfectour designs.

Velan gate, globe, and checkvalves are available withforged steel bodies includingpressure seal valves in sizes

up to 24 (600 mm) andAPI 600 cast steel bodiesup to 60 (1500 mm), with orwithout motor operators.

Central to Velans success inthe refining industry is ourquarter-turn product line,which includes ruggedSecuraseal and Torqseal

Serving the refining and petrochemicalindustries

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that meet our clients appli-cation needs.

Our extensive R&D facilitiesare another key componentin our proven formula forachieving manufacturingexcellence.

They are fully outfitted withsteam boilers and super-heaters, flow loops, andcryogenic test stands essential tools in ensuringwe consistently meet thechanging needs of the mostchallenging environments.

We are currently engaged inadvanced research in metalspray technology, using theservices of independentlaboratories for abrasion,sliding wear, bond strength

testing, scanning electronmicroscopy, and X-raydiffraction.

ON-DEMAND ENGINEER-ING CAPABILITIES Valve design

Stress analysisand finite elementanalysis

Application engineering

Flow analysis

Thrust and torquecalculation

Actuator sizing

Risk and root causefailure analysis

System upgrades

Weak link analysis

Custom testing and testdata analysis (NDT, X-rayreview, UT testing, etc.)

Validation of retrofitchanges

4

Innovative solutions that are consistentlysafe and reliable

Velan takes casting quality seriously. Magmasoft casting simulation is part of a comprehensiveapproach to consistently producing top quality products.

For more than 50 years,Velan has addressed criticalapplications in the oil andgas, refining, pulp and paper,nuclear, chemical, and min-ing industries. One of thegroups that has contributedmost to our continued

success is our EngineeringDesign Group the teamresponsible for ensuring ourvalves are built to last andhave an extremely long andreliable service life.

Top-quality engineered valves

Regardless of whether thedemand is for a relativelysimple API 600 gate valve ora highly engineered cokerswitch valve, complete witha control system, this teamof professional engineerswork with advanced soft-

ware applications includingFinite Element Analysis(FEA), computational fluiddynamics, and three-dimen-sional solid modeling todesign top-quality valves

The performance of hot cycling tests in Velans R&D facilities.

Velan used computational fluid dynamics toimprove the flow characteristics of this4 (100 mm) globe valve.

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BP, one of the worlds largest oil companies,awards Environmentally Friendly Valvestatus to Velan cast steel valves.

AUTOMATIONOFFERINGS

Electric, hydraulic, andpneumatic actuation

Preinstallation ofswitches, positioners,

thrust and torque sen-sors, signal conditioners

Integral control actua-tion, two-wire, andclosed-loop systems

OEM actuators throughVelan stocking distribu-

tion or actuators of thecustomers choice

Overrides, limit stops,and most accessoriesstandard

An actuator is installed on a metal-seated ball valve before hydrotesting.

5

With environmental con-

cerns growing and legisla-tion following suit, industriesworldwide are facing enor-mous challenges in minimiz-ing their negative impact on

the environment.

Environmental devastationaside, petrochemicalresources are also becom-ing increasingly valuable,and plants can no longerafford to operate withoutadhering to strict fugitive

emissions standards.

Since the mid-1970s, Velanhas worked on developingsealing technologies thatminimize leakage. Today, ourvalves offer the most strin-gent emissions guarantees.For those applications thatrequire even lower emis-sions, we have a rane ofzero-emission offerings.

Hunting down fugitive emissions

Velan performs emissions testingto guarantee our valves meet strict low

emission criteria.

Velan can supply turn-key automated packages with integral control actuation for two-wire andclosed loop systems (Profibus, Modbus, Fieldbus, etc.).

Through our global networkof distributors, we offer OEMactuators that meet the mostdemanding on/off and controlapplications. Since qualitycounts as much when itcomes to choosing businesspartners as it does when

selecting products, we inter-view our distributors beforeappointing them as author-ized actuator mountingshops, and continue to care-fully audit them over time.

One-stop shopping with Velan

In addition, we go through anextremely thorough process

to qualify the actuators them-selves. This ensures we canoffer everything from multi-

turn electric actuators onraising stem valves toscotch-yoke or double

opposed piston actuatorson rotary valves and turn-key control systems.

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Steam traps

Velans comprehensive range of steam traps is based on a uniquedesign that was developed and patented by A.K. Velan, CEO ofVelan Inc., in the early 1950s. This unique product has been proven tohelp major refineries realize significant savings on their steam costs.

Two HF acid 12" (300 mm) class 300 gate valves installed at ExxonMobil.

Velans current steam trap catalog (right)next to the original catalog (far right).

HF acid valvesAlkylation is the refiningprocess for chemicallycombining isobutene witholefin hydrocarbons through

the control of temperature

and pressure in the pres-ence of an acid catalyst,usually sulfuric acid orhydroflouric acid.

The product, alkylate, hashigh octane value and isblended with motor oil oraviation oil to improve the"anti-knock" value of the fuel.

Hydrofluoric acid, one of thecatalysts used in this

process, is highly corrosiveand dangerous if leakedinto the atmosphere.Consequently, this is acritical valve application

and there are few manufac-turers with the appropriateexpertise.

There are two major licen-sors for HF alkylation serv-ice, ConocoPhillips and UOP.Velan manufactures forgedsteel and cast steel valvesfor both licenses and wehave installations all over

the world.

Metal-seated ball valves

Velan manufactures a widerange of severe servicemetal-seated ball valvesspecifically designed for therefining and petrochemicalindustries. Velans line ofcoker ball valves, whichincludes a multi-portedswitch valve has beensuccessfully installed inover 90 delayed coker unitsworldwide. Applicationsrange from inlet transferlines to heater isolation.

Velan also manufacturesa full line of metal-seatedvalves in sizes 1/2 24(15600 mm) in ASMEpressure classes 1504500,and offers tight bidirectionalshut-off in the Securaseal

product line. Applicationsrange from catalyst handling

to slurries and fly ash.

6

Proven expertise in the refining andpetrochemical industries

24" (600 mm) full-bore severe service metal-seated valve has been in uninterrupted servicefor over six years.

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Velan meets new standards infire testing ISO 10497 andAPI 607 Rev. 5Although metal-seated valves are inherently fire-safe,Velan is committed to qualifying products to the latestindustry standards. All of Velans quarter-turn valves,including Torqseal and Securaseal metal-seated valvesand Memoryseal valves, meet API 607 rev. 5 standards.

A 10 (250 mm) pressure seal valve at a refinery in Brazil.

7

Pressure seal valves

Velan manufactures a full

range of pressure seal gate,globe, and check valves forhigh pressure/high tempera-

ture applications. Velan isunique in offering forgedbodies and bonnets in sizesup to 24 (600 mm) toimprove the quality of thepressure boundary, ensuring

that the highest qualitymaterial is being used inVelan products.

This ensures greater

strength, structural integrity,and reliability. Velan alsouses a new live-loadedpressure seal design,which maintains a bonnetseal regardless of pressure/

temperature fluctuations.

A large Torqseal triple-offset butterfly valve used for crude oil servicein Dalian Seaport (China).

Torqseal butterfly valveThe Torqsealtriple-offsetmetal-seated butterfly valveprovides bi-directionalbubble tight shutoff.Each valve is tested to the

API 598-resilient seatedcriteria. The unique shutoffcapabilities combined with

the maintenance-freepacking makes this valvean excellent choice forisolation service.

The Torqseal is also wellsuited for overhead vaporlines, steam distribution,and high temperature appli-cations where tight shutoff

is needed. Recently Velansigned a contract with amajor terminal company

that has chosen VelansTorqseal valves as thestandard valve for all their

tank farms.

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Global servicewith strong local presence

Velan is a true global manu-

facturing leader. Whatsmore, our global presencegoes far beyond our manu-facturing facilities: our wide

range of valves are soldthrough an extensivenetwork of distributioncompanies.

Our distributors are furthersupported by our NorthAmerican and European dis-

tribution centers, so a Velan

distributor is always nearbyand ready to help should theneed arise. Over the years,

Velans large inventories andpremier distribution network

When you need valves now... Velans stocking product program

Velans product stocking

program includes a largeselection of multi-turn andquarter-turn valves incarbon, chrome, stainless,and alloy steels for thepetrochemical andrefining industries.

have helped us become a

leader in supplying MROcontracts to leading petrole-um companies around theworld.

Velans regional sales man-agers and our distributors

are always on the lookoutfor new applications thatrequire valve expertise andprocess knowledge.

Furthermore, many of our

distributors offer value-added services, such as

automation, which canlower lead times and helpwith faster turnarounds.

API 600, 602, and 603gate, globe, and checkvalves

Dual-plate check valves

Triple-offset butterflyvalves

Resilient-seated ballvalves

Coker ball valves

HF acid valves

Metal-seated ball valves

API 6D and 6A ball valves

Steam traps

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Velans Field Engineering Ser vices Departmenthas launched a knowledge base to help main-

tenance personnel troubleshoot valveproblems. Based on the companys detailedservice issue database, valvediagnostics.comallows users to diagnose their problems andfind a recommended solution.

At Velan, we take aftermar-

ket service seriously and arecommitted to full support ofour products in the field every step of the way from

post start-up technicalassistance through todelivery of aftermarketproducts and services.

Our technicians are industryprofessionals, with years ofvalve and customer service

experience to draw upon.

They prepare clear, compre-hensive reports that detail

the scope of the problem as

well as any service calls or

other activities associated

with it. This ensures thatevery service issue reportedis documented and can bemaintained in a knowledge

base, which is periodicallyreviewed to determine if

trends are evident. Keepingthe users of Velan products

satisfied is part of the key toour success over the years,and our service group takespride in continuing and sup-

porting that tradition of

excellence.

Worldwide engineering and field services

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The refining process takes

crude oil and separates itinto useable products.These products range fromlubricants to LPG, gasoline,kerosene, residual and distil-late fuels, coke, asphalt,solvents, and petrochemicalfeedstock.

The process overviews

The refining process starts

with fractionating, where thecrude is sent through twodistillation units. The firstunit is atmospheric distilla-

tion, which separates andrecovers the lighter fractionsfrom the fresh crude oil.

The reduced crude feed

is then sent to the seconddistillation unit, vacuumdistillation, where light,medium, and heavy lubeoil is separated.

The separated crudes,

now called feedstocks,are sent to different catalyticisomerization areas of theplant where they are treatedand further separated andrefined.

Downstream production

FRACTIONATION CONVERSION

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During the Fluidized Catalytic

Cracking (FCC) process theoctane value is increased,and the feedstocks includinggas oil, coker gas oils, andFCC cycle oils are convertedinto high quality, low-sulfurfuels. Other processes forupgrading the quality of fuels

include hydrocracking,

hydrodesulphurizationtreating, and coking.

One other area of the plantis gas separation, whichseparates the gas into lightcrude distillates and gas.

The gas plants use cryogen-

ics to recover LPG fromrefinery and petrochemicaloff gases. Moderate recov-ery of ethane and high-purityhydrogen can also beachieved.

TREATMENT FORMULATING/BLENDING

The final stages are treating

and blending the feedstocksto bring them into differenttypes of finished productsor useable fuels.

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Refining production

The heart of every refinery is

the crude distillation unit. Ina crude unit, the oil is heatedand the different hydrocar-bon compounds are separat-ed by a process called distil-lation. Distillation means

that, at different tempera-tures, the various hydrocar-bon compounds will boil

Atmospheric distillation and vacuum distillation

off and be separated from

the feedstock. It is importantto note that the distillationprocess is the most commonprocess found in a refinery.Distillation towers are foundin almost every type of unitand are used to separate

the various hydrocarbonfractions.

The atmospheric crude distil-lation tower is very tall and

the temperature in the towervaries from hot at the bottom

to warm at the top. Lookingat the plant diagram, you willnotice that there are severalside draws coming off the

tower at various heights.

At these specific locations inthe tower, the temperature issuch that the desired prod-uct is separated from the

crude oil. At various heights(each with different tempera-

tures) the different productsside draw during separation.Heavy products (such asasphalt) come off the bottomwhere the tower is thehottest, and lighter products(gas) come off the top whereit is only warm.

Crude units typically have anatmospheric and a vacuumdistillation tower. Using thevacuum distillation towerallows the refiner to boil theoil without raising the tem-perature up to the pointwhere coke will start to form.As a result, the refiner getsan additional output from theoil, before sending it down-stream to be processedfurther.

A major North American refinery.

GENERAL APPLICA-TIONS IN REFINING

Pump isolationPositive shutoffrequirements requirequality Velan gatevalves or Torqseal

triple-offset butterflyvalves.

Unit isolationRequires positive shut-off for safety and main-

tenance. Quality Velangate valves, Torqseal

triple-offset butterflyvalves, or Securaseal

metal-seated ballvalves allow for safemaintenance access.

Vessel isolationTo ensure processintegrity and positiveshutoff for mainte-nance, high-qualityvalves are needed.Velan can supply man-ual or automatedvalves to meet cus-

tomer shutoff require-ments.

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DELAYED COKERAPPLICATIONS:RANGE OF VALVES

614 switch valves,ASME classes 300900

636 isolation valves,ASME classes 150900

28 high pressurehydrodrill valves,ASME classes 15002500

1/42 steam valves,ASME classes 300150

13

The cracking process plays a

very important role in therefining of oil into fuel prod-ucts. Cracking is the breakingapart of long chains of car-bon molecules. The feed-stocks to crackers areheavy gas oil and cokergas oil. Both of these prod-ucts contain long carbonchain molecules. When theselong carbon chains are heat-ed to temperatures exceed-ing 680F (360C), they begin

to break apart into lighter,

more valuable products thatcan be used as fuels.

The purpose of cracking oil isto produce lighter productswithout producing coke, anatural by-product at high

temperatures. To limit andcontrol the formation of coke,which is a less valuableproduct that also lowers theefficiency of the process, acatalyst is used. The catalystsupplies energy to drive the

reaction and therefore low-ers the required crackingtermperature and reducesthe formation of coke. Thetwo most common methodsused in the cracking processare fluidized catalytic crack-ing (FCC) and hydrocracking.

Catalytic cracking

The advantage of the FCC

process is that the unit con-tinues to operate, which ispossible because the flu-idized catalyst bed can becontinuously circulated andregenerated. However,because the catalyst used isa fine abrasive powder thatcirculates through theprocess, abrasion can be aproblem for valves and otheroperating equipment.

Hydrocrackers are advanta-

geous for two reasons. First,dirty and sour feedstockscan be hydrotreated prior

to the cracking operation,which optimizes the processand produces a cleaner fin-ished product. Second, bycracking the heavy feed-stock in a hydrogen richenvironment, higher valuedlight end products are pro-duced. As in hydrotreaters,large amounts of hydrogenmust be compressed and

recycled into the process.Therefore, large compressorpackages are an integralpart of hydrocracking unitsand they are prime valveapplications.

Delayed cokingHot residual oil is fed to

the base of the fractionatorwhere it mixes with thecondensed recycle. Thecombined feed is heated in

the furnace until a suitabletemperature is achieved.Steam or boiler feedwateris injected into the heater

tubes to prevent coking inthe furnace. The condensedrecycle joins the freshcharge, as mentioned earlier.The overhead stream is sent

to a vapor recovery unitwhere the individual productstreams are separated.The wet gas and unstabilizednaphtha are sent to the lightends recovery plant forseparation of fuel gas, LPG,and naphtha products.

The coke that forms in one ofthe parallel drums is removedusing high pressure water.The plant also includesa blowdown system,coke handling, and awater-recovery system.

12 (300 mm) switch valve in a delayedcoker unit.

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ButadieneButadiene is a by-product ofethylene production. One of

the largest commodity chem-icals produced in NorthAmerica is 1.3 butadiene.

Butadiene may exist ineither gas or liquid states.The most common methodof butadiene production is

through chemical extraction.This process uses an extrac-

tion solvent such as acetoni-trile or dimethylformamide toproduce a pure butadienemonomer from a mixedbutenes stream.

Velan ball valves are anexcellent choice for butadi-ene service because of theirsuperior stem seal designand the wide range of seatmaterials that are availablefor different butadiene serv-ices. Related applicationswith similar problems wouldbe isoprene and styrene.

14

Petrochemical production

Olefin recoveryThe recovery of ethylene,propylene, and heavier

components from refineryoffgas streams can beaccomplished with cryogen-ics, molecular sieve, or both.The refinery offgases from

the catalytic crackers, cok-ers, or other sources are firsthydrated by molecular sieve

then sent to an expanderthat compresses the gasstream. This gas stream is

then cooled through a heatexchanger. The recoveredethylene or propylene are

then feedstocks for thepetrochemical industry.

Olefins can also be dehydro-genated from paraffins usinga steam-active reformer.

Olefin by-productsMany products derived fromcrude oil refining, suchas ethylene, propylene,butylene, and isobutylene,are primarily intended for

use as petrochemical feed-stock in the production ofplastics, synthetic fibers,synthetic rubbers, andother products.

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AmmoniaAmmonia is another by-product of the refining indus-

try and is very important inthe petrochemical industry.

Two raw materials areused to produce ammonia.Air supplies the nitrogen,and natural gas supplies

the hydrogen for ammoniasynthesis. Natural gas isreformed in a conversionreactor when it is combinedwith steam. Air is introduced

to the second reactor at acontrolled rate to ensure theproper H2to N2 ratio. Oxygenfrom the air is consumed inan exothermic combustionreaction while the inertnitrogen passes through

the system.

In shift reactors 1 and 2 thewater-gas shift equilibriumreaction takes place as the

temperature of the steam islowered, combining thenitrogen and hydrogen

elements into NH3 - ammoniagas. The ammonia gas will

then be cooled and pressur-ized for storage or trans-portation as a liquid in

special ammonia storagetanks. The diagram above isa simplified illustration of

this process.

GENERAL APPLICATIONSIN PETROCHEMICALPRODUCTION

ESD valvesVelan quarter-turnvalves have consis-

tent torque for easeof actuator sizing,which reduces theconcern for locked upvalves. Velan hasworked with accesso-ry manufacturers topartially stroke ourvalves automatically,

this again helpsassure the operationof the assembly whenit is required tostroke.

ChemicalsVelan Memoryseal

valves with theirpatented seating

technology gives cus-tomers positive andrepeatable bubble

tight shutoff throughthe valve. This seat-ing technology isexcellent for actua-

tion because its soeasy to open andclose the valves.

Higher temperaturesVelan Securaseal

and Torqseal valvelines are available up

to 1450F (788C),with ASME pressureclasses up to 4500.These two productlines complementeach other: Torqseal

meets the API 598soft seat standardand Securaseal hashigh flow capacities.

A double block and bleed setup using a 12" (300 mm) class 300 347 stainless steelTorqsealvalve on hydrogen service at 500 psi/900F (34.5 bar/482C).

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VEL-RP-2007

VEL-PS VEL-BG VEL-SFV VEL-BS VEL-CRYO

VEL-BF VEL-MS VEL-PBV VEL-CBV VEL-BV6D

VEL-CSV VEL-API-603 VEL-KGV VEL-PQCV VEL-NCP

VEL-BV VEL-GP2BV VEL-SAS-BF VEL-ADCV VEL-ST

low emissions easy maintenance long, reliable service

www.velan.com

2007 Velan Inc., Montreal, QC, Canada. All rights reserved.The contents hereof are confidential and proprietary to Velan. Any unauthorized reproduction or disclosure, in whole or in part, is strictly prohibited.