Wet ScrubberApplication GuideImpingement Plate Scrubbers

Venturi Scrubbers

Eductor Venturi Scrubbers

Three Types ofWet Scrubbers ToRemove Vapors, Gasesand Particulate

ImpinjetImpingement PlateScrubbers

The Sly Impinjetscrubber collects particu-lates, and absorbs vapors,and gases. High collectionefficiencies, (99+%), canbe achieved with lowwater consumption andminimum pressure drop.

Venturi Scrubbers forFine Particulates

The Sly Venturiscrubber offers moreadvantages in separatingand recovering ultra-fineparticulates and liquidmists than other gascleaning methods.

Eductor VenturiScrubbers

Eductor scrubbers are designed to removesoluble gases andparticulate by inducing a gas flow using highpressure liquid focusedinto a venturi throat.

Eductor Venturi Scrubber

Venturi Scrubber

Impinjet Scrubber

1.40

VOLUME CORRECTION FACTOR

INLE

T M

OIST

URE,

#H 2

0/#D

RY A

IRVOLUME CORRECTION CHART

.35

.30

.25

.20

.15

.10

.05

.40 .45 .50 .55 .60 .65 .70 .75 .80 .85 .90 .95 1.00

2000

1500

1250

1000

750

500

450

350

250

225

200

175

150

125

0

100

90

85

95

PARTICLE SIZE, (MICRONS)

EXPE

CTED

EFF

ICIE

NCY

%

PARTICULATE COLLECTION EFFICIENCIES

1.0 2.0 3.0 4.0 5.0

1STAGE

IMPINJET

2STA

GE IMPINJE

T

20' P VENTURI

30' P VENTURI

The first step is todetermine which type ofSly scrubber to select. The nature of the pollutantor contaminant will determine if the Venturi,Impinjet, or combinationscrubber system is bestsuited for your application.

Sizing the scrubber isthe next step. The factorsaffecting sizing are gas flowrate, temperature, pressure,gas composition, humidity,contaminant loading anddesired outlet conditions.Also, the availability of anappropriate scrubbingliquid is an importantconsideration.

Gas streams entering awet scrubber may or maynot be fully saturated,however they will exit thescrubber fully saturated.This process of saturationresults in a change involume, temperature anddensity.

The overall scrubbersize (diameter) is afunction of velocity ofsaturated gas through thescrubber shell. By knowingthe moisture content of agas stream (generallyexpressed as pounds ofwater per pound of dry gas)and the inlet temperature;the saturation temperatureand saturated volumecontent can be calculated.The volume correctionchart at the right can beused for a close approxima-tion of the change in gasvolume.

Example:10,000 ACFM @ 450Fcontaining 0.15# H2O/#dry air

The chart shows acorrection factor of 0.75. Inletvolume x correction factor =outlet volume or 10,000 x 0.75= 7500 ACFM. The scrubberwould be sized for thissaturated outlet volume.

For Impinjet scrubbers,the maximum capacity isbased on shell velocity of 500feet per minute. Dividing thecorrected or saturatedvolume by 500 yields theoverall tower cross-sectionalarea from which the diametercan be determined.

Example (continued):7500 ft3/min = 15 ft2

500 ft/minArea = 15 ft2 = D2

4D=diameterDiameter = 4.37 ft

The calculated diameterbecomes the reference pointfor equipment selection.(Refer to specific productbulletin.)

The approximateparticulate and/or mistefficiencies for Venturis andImpinjet scrubbers can bedetermined by the efficiencychart on the right.

To determine the numberof Impinjet stages requiredfor the absorption of gasessuch as acids, requires acomplex calculation with toomany variables to use asimple chart. However, foreither particulate or

absorption the followinginformation is important:- gas volume- process description- temperature- particle size- moisture content- type of contaminant

For assistance in under-standing your problem, callSly at +44 (0)116 260 8187

Basic Criteria forSizing A Wet Scrubber

2Impinjet ScrubbersCollect Particulates &Absorb Vapors and Gases

4.) Both particlecollection andabsorption of gases,vapors, etc. can bedone at the same time.

5.) Multiple stages canbe provided.

6.) No moving parts to maintain.

7.) Extensive experiencewith many applicationsavailable.

8.) Needs less scrubbingfluid than most otherscrubbers.

9.) Can handle high temperatures and temperature fluctuations.

Cooling andCondensing

The outlet gas can becooled to less than 5Fabove the temperature ofthe incoming liquid. Oftensolvents such as alcohols,pentane, hexane, acetone,ethylene glycol, chloro-form, etc. are recoveredfrom inert gas streamssuch as nitrogen or carbondioxide. Chilled solvent isused as direct contactcondensing liquid andremoves the heat from thegas stream as it gains heat.

Scrubbers also recoverwaste heat. Heat fromdryers and other processesthat would normally beexhausted can be used toheat water being fed to thescrubber almost to the wetbulb temperature of theinlet gas. For cooling and

Rugged and uncompli-cated in design, ImpinjetScrubbers can realizeefficiencies in excess of99% on many types ofdust or gases. Capacitiesrange from 500 to over100,000 CFM. Dependingupon application, waterrequirements vary fromless than 1-1/2 GPM per1,000 ACFM to a typical 3GPM per 1,000 ACFM.

Unique flexibility isfurnished by ImpinjetScrubbers. Made with thefuture in mind, additionalstages can be added toexisting installations toimprove efficiency tohandle tomorrowsrequirementswithoutincreasing liquid con-sumption. There is no needto buy complete new units.

Benefits1.) High absorption

efficiency for gasesand vapors. Expertsagree that plate towershave the ability toremove gaseous pollu-tants to any desiredconcentration if a suf-ficient number ofplates are used. Thismeans high masstransfer rates can beachieved.

2.) 98+% collection efficiency for particles5 microns in size or larger.

3.) These high efficienciesare achieved at a lowpressure drop.

condensing and for heatrecovery, our designs canaccommodate highhydraulic loadings.

Operating PrinciplesThe gas passes up

through the openings inthe perforated plates (trays)which hold a bed of liquid.The secret is in thescrubbers design whichuses an impingement baffleabove each individual hole.

The tiny droplets, created by the wetted baffles, are the heart of the collection process.

Gas velocities of 60 to75 feet/second through theholes result in thousands ofjets which atomize theliquid into droplets on theorder of 100 microns indiameter to clean the contaminated gas. Thisentraps the particles in thescrubbing liquid. Each jetaspirates liquid from theblanket of scrubbing fluidand results in a wetted target surface on the bafflewhich is located just abovethe point of maximumvelocity (vena contracta).

In operation, thescrubber is highly pluggage-resistant. Thecontinuous violent agitation of the blanket ofscrubbing fluid preventssettling of particles andflushes them away.

Intimate gas/liquidcontact results in themaximum collection efficiency for particles anddroplets as well asabsorption (mass transfer)of gases and vapors. Whenused for absorption, lowoutlet emissions can beachieved by virtue of thescrubbers countercurrentoperation. The SlyImpinjet Gas Scrubber isable to reduce gaseouspollutants to any desiredconcentration if asufficient number of platestages is used.

See data sheet fortechnical details.

31.) Scrubber Outlet

2.) Fixed Blade Mist Eliminator- assures droplet-free air toprocess or atmosphere.

3.) Impingement Baffle Plates -create interaction of gasstream and liquid.Additional plates (trays,stages) provide increasedefficiency.

4.) Plate Discharge and SealDrain - directs slurry to bottom of scrubber forremoval. Non-clogging sealprevents short circuiting ofgas.

5.) Liquid Supply and Weir(dam) - adjustable weirprovides uniform liquidflow to plates.

6.) Spray Section - for cooling and entrapmentof larger particles. Spray washes under side of plate and walls to prevent materialbuild-up. Sprays arenon-clogging.

7.) Gas Inlet

Venturi Effect resultsin turbulent interaction of liquidand particulate-ladengas flowing throughperforated plate andstriking the wettedimpingement bafflegrid. (Each hole hasan individual impingement surface.) Minute

liquid droplets are formed which entrap suspended matter in gas. Particulate carrying droplets mix withwater flowing across baffles for ultimate disposalthrough the drain. Cleaned gas passes through the misteliminator for return to process or atmosphere.

4energy costs is anadjustable pressure dropprovision and energyregain feature whichcombine to reduce powerconsumption andoperating costs.

The Sly VenturiScrubber serves industry inseveral ways. It removespollutants present inprocess gas streams. Thisincludes removinghazardous and nuisancedusts, fumes and mistsfrom stack gases. Cleaningprocess gas streams toremove oils, dusts andother particulate, thisscrubber offers industry anopportunity to recyclethese gases as fuels orprocess raw materials.Finally, the Sly VenturiScrubber makes it possibleto reclaim valuablematerials which can resultin significant processsavings.

Sly Ltd., with over 125years of service to industry,offers complete airpollution control services.We begin with an applica-tion survey, engineeringrecommendations,fabrication, and end withfactory assembly of ascrubbing system toprovide a satisfactorysolution to your gasscrubbing problem.

BenefitsThis Sly scrubbing

system brings togethervirtually all the featuresyou should insist upon foryour application:1.) Simple, easily adjust-

able throat permitssetting pressure formaximum efficiency.Can be fine-tuned toapplication whilescrubber is running.Throat damper bladesare readily replaceable.

2.) Variable-spin damper inseparator maintainsproper velocity forcollection of finedroplets.

3.) Flooded elbow providesa wetted surface forcollection of largeagglomerated liquiddroplets. Also serves asa barrier to eliminateequipment wear. Drainsdirectly into separatorsump.

4.) Removable scrubbingliquid piping - nonozzles to wear or plug.

5.) Access door permitsinspection of floodedelbow and spin damper.

6.) Simple open design haslow potential for build-up and pluggage.

7.) Temperature andcorrosion resistantconstruction isavailable.

8.) Can employ a highconcentration slurry asscrubbing liquid.

Operating PrinciplesThe incoming gas is

accelerated to a highvelocity at the scrubber sthroat where it comes intocontact with the scrubbingliquid. The liquid isatomized into fine dropletswhich entrap the particu-late with high collectionefficiency.

Downstream from thethroat, the cleaned gasdecelerates and theparticulate-laden dropletscollide and agglomerate.The large, heavy, agglom-erated droplets are driveninto the flooded elbow foreasy disposal. Droplets toosmall for collection at theflooded elbow are collectedin the separator tocomplete the cleaningoperation.

Pressure drop acrossthe venturi throat is ameasure of the energyneeded to atomize thescrubbing liquid and toperform the cleaningoperation. The higher thepressure drop, the higherthe collection efficiency.

The Sly Venturi offersthe most efficient designfor putting pressure dropto work. Its adjustablethroat feature optimizesscrubbing efficiency bymaintaining just the rightpressure drop. This,combined with the unitsenergy regain section,significantly reducespower consumption andoperating costs.

See data sheet for technicaldetails.

The Venturi Scrubberuses the differentialbetween high velocitygases and free-flowingwater to create dropletswhich entrap contami-nants, hold them insuspension and deliverthem as a highly concen-trated slurry. The SlyVenturi Scrubber offersmore advantages inseparating and recoveringliquid mists and ultra-fineparticulate than other gascleaning methods.

Simple in design, yethighly efficient, this SlyVenturi Scrubber incorpo-rates features calculated tomaximize collectionefficiency while minimiz-ing operating andmaintenance costs. Theyrange from a non-plugging, trouble-freemethod of introducingscrubbing liquid and asimple, easily-adjustedthroat for optimizingefficiency, to a floodedelbow arrangement thatcollects agglomeratedparticulate while providingan abrasion-resistantbarrier to deter scrubberwear. Extremely importantin these days of rising

Venturi ScrubbersCollect UltrafineParticles and Mists

5Flooded elbow collects agglomerated, particle carryingdroplets and functions as an abrasion deterrent.

Access door permits inspection of flooded elbow,shielded inlet and variable spin damper.

Damper in fully open position.

Clean out door.

Throat adjustment.

Damper partially closed to increase spin velocity.

Tangential outletminimizes pressure drop.

Separator collects ultrafine droplets toosmall for impingement collection inflooded elbow.

Highrelativevelocitymaximizescapture ofgas streampollutants.

Water atomization and particle impaction.

Energy regain sectionreduces power consump-tion.

Shielded waterinlet prevents re-entrainment ofliquid in gasstream.

Variable Spin Damper is manuallyadjusted to control spin velocity. Properadjustment maintains the spin velocitynecessary to efficiently collectentrained liquid droplets.

Removable pipingdistributes waterwithout using nozzles.

Adjustable ThroatSimple, easily-adjusted throatoptimizes efficiency. Operatesmanuallyautomatic control isoffered as an optional extra.

Wetted surfaceseliminate wet/dryinterface build-up.

Flooded inlet eliminates wet/dryinterface build-up problems.

Often a hot gas stream has a valuableparticulate to be recovered. Silver isrecovered from film incineration usingthis Venturi scrubber.

6EductorVenturiScrubbers

Eductor scrubbers aredesigned to remove solublegases and particulate byinducing a gas flow usinghigh pressure liquidfocused into a venturithroat.

Additionally, eductorscrubbers can be used fordirect-contact condensa-tion. A high liquid flowrate makes the Sly eductorparticularly appropriatefor collection of stickyand/or gummy particulate,as well as gases whichdecompose upon contactwith water, such as SiCl4and H2SiF6.

Eductors are easilystaged with other collectiondevices such as impinge-ment plate scrubbers,packed towers or additionaleductor scrubbers.

7Gas Scrubber Removes Hazardous Vapors An Impinjet gas scrubber hasbeen employed by a major producer of industrial chemicals to remove hazardous(noxious) vapors. The scrubber vents both bottle filling and dry bulk filling areas atthe company, which produces hydrochloric, sulfuric and nitric acid as well asformaldehyde and ammonia.

The system handles 2,500 CFM. Efficiencies exceeding 95% are reported. The highefficiency of the scrubbing system is due to the unique design of the impingementbaffle plates, which cause the contaminated air to mix intimately with the scrubbingsolution.

Scrubber Cleans and Absorbs Acid Gases and Particulate From MedicalWaste Incinerator An Impinjet wet gas scrubber is used by this company to cleanexhaust gases from its medical waste incinerator.

7258 CFM of gas at 982 F from a 100 lb. per hour incinerator is handled by this skid-mounted wet gas scrubber. A proven impingement design creates turbulent conditions toinsure intimate contact between particulates and acid gases for thorough removal ofpollutants, including HCL.

Scrubber Collects SO2 And Particulate At Reprocessor of PetroleumCatalysts An Impinjet gas scrubber is used by this recycler of spent petroleumand chemical refining catalysts to clean flue gas from its ovens.

Carbon and sulfur from used catalysts is thermally oxidized by the company, creatingsulfur dioxide and particulates, primarily carbon. Previously, a packed tower stylescrubber was used to clean the resulting flue gas. Unfortunately, the packed towertended to channel, as well as not collect particulate. The Sly scrubber uses a provenimpingement design, which creates turbulent conditions to insure intimate contactbetween the gas contaminants and the scrubbing solution. This results in efficientremoval of both particulate and SO2.

Eductor Venturi/Packed Tower Combination Removes Particulate andAbsorbs Alcohol Vapors A combined eductor/packed tower collector thatremoves solid particulate and absorbs alcohol has been successfully employed by thismajor specialty chemical producer.

The equipment vents a variety of process equipment. The eductor venturi induces thegas flow using a high pressure and volume of recirculated water focused into the throatof the venturi. Particulate matter is removed in the venturi.

After the eductor, a packed tower scrubber with an extended packed section removesalcohol vapors by counter-current contact with a once through flow of fresh water. Theequipment is stainless steel construction, designed for 500 CFM.

Sly Scrubbers at Work

8Many companies makeair pollution controlequipment, but none havebeen doing it as long as Sly.

More than a centuryhas passed since ouroriginal patent for clothdust filters. Over the years,weve learned plenty aboutthe application andfabrication of dustcollectors and scrubbers.Here are the main points:

In the pollutioncontrol business,conservativeapplication oftechnology is best.

Equipment misappli-cation has no place in thepollution control business.Not only is improperequipment apt to fall shortof collection requirements,it is oftentimes moreexpensive to operate thanthe proper machinery. Forexample, incorrect sizingand improper mediachoice can easily lead toexcessive maintenance andcostly downtime. Whenyou deal with Sly, we haveyour best long terminterests in mind.

We believe in fittingthe equipment to thecustomers needs, notthe customer to theequipmentscapabilities.

Unlike many equip-ment suppliers, we refuseto mass-produce productand then hope for a goodfit. We have maintainedflexibility in our engineer-ing techniques whichpermits us to manufactureeach order to fit the task athand, while maintaining aprice to you that iscomparable to mass-produced equipment.

In many cases it costs no more to get the very bestequipment for the job.This approach earns us

the respect and repeatbusiness of many sophisti-cated buyers of pollutioncontrol equipment. Thesepeople, many of whom buydozens of collectors orscrubbers every few years,have always represented alarge portion of ourcustomer base.

We build our ownequipment...for somevery good reasons.

Part of the reason Slycan custom-make acollector for you whilekeeping a competitive priceis just that: we are themanufacturer. Unlike themajority of our competi-tors, we dont job out ourproduction. We do our ownengineering, sewing, metalfabrication, painting,assembly, quality control,and laboratory R&D. Thisway we control every stepof the process, allowing usgreat flexibility to build thebest collector or scrubberfor your individual needs.We have a strong commit-ment to shipping dates androutinely guarantee shipdates when requested.

Our obligation to thecustomer doesnt endwhen the equipmentis shipped.

Slys staff engineerscan promptly assist you introubleshooting or withother field service

problems should theyarise at your facility. Thiscommitment to totalcustomer support helpsguarantee superior valuefor your investment.

Were a privatecompany, and intendto stay that way.

The corporaterestructurings and shortterm goals of todaysbusiness scene arent forus. Sly is owned andoperated by descendantsof the founding family. Weare in the business for thelong run, and willmaintain the professional-ism and continuityrequired to contribute tothe long term success ofyour business.

Slys Approach to Air Pollution Control: conservative design flexible engineering controlled manufacturing comprehensive field services

Unit 16East Goscote Industrial EstateLeicesterLE7 3XAUnited Kingdom

Tel: +44 (0)116 260 8187 Fax: +44 (0)116 264 0543Web: www.slyfilters.comEmail: Sales@slyfilters.com

Need to comply with air quality codes? Our Eductor scrubbers are designed to specifically meet yourperformance requirements.

Got a tough application? Make use of our expertise...call us with your special requirements.

Need a unique solution to your problem? We offer custom engineering design. We design your Eductoraround your application.

Cant wait for a custom solution? Because Sly does its ownmanufacturing, we can deliver a custom system engineeredto meet your demanding process, and deliver it on time!

Eductor VenturiScrubbers

Eductor scrubbers are designed to remove soluble gases and particulate by inducing a gas flow using high pressureliquid focused into a venturi throat. Additionally, eductorscrubbers can be used for direct-contact condensation. A high liquid flow rate makes the Sly eductor particularlyappropriate for collection of sticky and/or gummy particu-late, as well as gases which decompose upon contact withwater, such as SiCl4 and H2SiF6.

You get this... ...Because we do this!

High Efficiency State-of-the-art materials

Long Life Materials selected for optimum corrosion resistance Internals are generally inert to the process environment

Minimum Maintenance No moving parts Convenient access locations

Low Overall Water Consumption Recirculate Solution

Flexibility Each is custom-engineered Is easily staged with other collection devices such as impingement

plate scrubbers, packed towers or additional eductor scrubbers

Specifications:

Materials:Shell: Mild steel 304 SS 316 SS Special alloy FRP

Design Pressure: 6" wg (std.) Other

Standard Features: Access door in tank Flanged inlet and outlet Integral recirculation

reservoir Anchor lugs Lifting lugs

Optional Accessories/Features: Pressure differential gauge Internal sloped bottom Cone bottom Recirculation pump Recirculation piping Instrumentation package Exhaust fan Skid mounting (6' diameter & smaller) Control panel Sump heaters (freeze protection) Chemical feed systems

Eductor GasScrubbers

Unit 16East Goscote Industrial EstateLeicesterLE7 3XAUnited Kingdom

Tel: +44 (0)116 260 8187 Fax: +44 (0)116 264 0543

Web: www.slyfilters.comEmail: Sales@slyfilters.com

100%

98%

96%

94%

92%

90%

88%

86%

1 2 3 4 5 10Particle Size-Micron

1 Stag

e

3 Stag

e2

Stag

e

Impinjet Scrubbers

Pressure drop is animportant consideration inevaluating the efficiencyexpected of a scrubber in agiven application and in fan,drive and motor selection.

When high efficiency isrequired, the use of additionalstages provides a correspond-ing increase in pressure drop.

The above chart showsstandard pressure drop ininches, w.g., across scrubberfor 1 stage, 2 stages and 3stages.

To correct pressure drop tooperating conditions, multiplystandard pressure drop by theratio of outlet density tostandard density.

Example: Using .0615 #/Cu. Ft. Dry Air from DensityCorrection example and the 1stage average capacitypressure drop of 3" at 70F.(density .075) the operatingpressure drop is: 3" H2O x.0615/.075 = 2.46 inches, w.g.

Collect Particulatesand Absorb Odors,Vapors and Gases

Rugged and uncompli-cated in design, ImpinjetScrubbers can realize efficiencies in excess of99% on many types ofdust or gases.

Both particle collec-tion and absorption ofgases, odors, vapors, etc.can be done at the sametime.

Ready forToday...Ready forthe Future

Unique flexibility isfurnished by ImpinjetScrubbers. Made with thefuture in mind, additionalstages can be added toexisting installations toimprove efficiency tohandle tomorrowsrequirementswithoutincreasing liquidconsumption. There is noneed to buy complete newunits.

For Cooling &Condensing, Too

The outlet gas can becooled to less than -15Cabove the temperature ofthe incoming liquid.Often solvents such asalcohols, pentane, hexane,

acetone, ethylene glycol,chloroform, etc. arerecovered from inert gasstreams such as nitrogenor carbon dioxide. Chilledsolvent is used as directcontact condensing liquidand removes the heat fromthe gas stream as it gainsheat.

Scrubbers also recoverwaste heat. Heat fromdryers and other processesthat would normally beexhausted can be used toheat water being fed to thescrubber almost to the wetbulb temperature of theinlet gas. For cooling andcondensing and for heatrecovery, our designs canaccommodate highhydraulic loadings.

Highlights High absorption

efficiency for gases,odors and vapors

Efficiencies exceeding98% for particles 5microns or larger

Multiple stages can beadded to improve efficiency

Capacities from 500 toover 100,000 CFMWater requirements aslow as 1-1/2 GPM per1000 ACFM (typically, 3GPM per 1000 ACFM)

Pressure Drop @ 21C.Normal Capacity(Inches, W.G.)

3.04.56.0

Max. Capacity(Inches, W.G.)

4.256.48.5

Number on Stages

One StageTwo Stage

Three Stage

Standard Impinjet Efficiency@Pressure Drop of 1-1/2" per Stage

Impinjet Scrubbers

Standard Equipment Stainless steel impinge-

ment baffles Fixed blade mist

eliminator Conditioning spray Carbon steel/Stainless

steel construction Access doors (bolted) Full draining design

Optional Equipmentand Features FRP and plastic

construction Mesh and chevron mist

eliminators Quick opening access

doors Integral sumps Complete package

systems

Single StageDimensions

1998 Sly Inc.WS200 398Printed in U.S.AImpinjet is a registeredtrademark of Sly Inc.

StraightSide A

OverallHeight B

ImpinjetNumber

115120125130135140145150155160165170175180185190195

110011051110111511201125113011351140

ImpinjetNumber

215220225230235240245250255260265270275280285290295

210021052110211521202125213021352140

StraightSide A

OverallHeight B

ImpinjetNumber

StraightSide A

OverallHeight B

Two StageDimensions

Outlet Volume (CFM)

Dia

Max. Capy 500

FPM

Normal Capy 420

FPM

7401350210030004050530067008250

1000011900 1395016200186002115023850 2675029800330003640039950 436504755051550557506015064700

8851550245035004800625079509800

1185014100 1655019200220502510028350 3180035400392504325047500 519005650061350665007155076950

Nozzle SizesBottomDrainI.P.S.

Inches

SprayWater Inlet

I.P.S.Inches

Single Stage Three StageC

30

B

A

DIA.

B

30

C

B

A

DIA.

B

1/21/23/43/4

1111 1/41 1/41 1/41 1/41 1/21 1/21 1/222222222 1/22 1/22 1/22 1/22 1/2

PlateWater

Inlet I.P.S.Inches

1/23/4

111 1/41 1/41 1/41 1/21 1/21 1/222222 1/22 1/22 1/22 1/22 1/23333334

Three StageDimensions

1'-6"2'-0"2'-6"3'-0"3'-6"4'-0"4'-6"5'-0"5'-6"6'-0" 6'-6"7'-0"7'-6"8'-0"8'-6" 9'-0"9'-6"

10'-0"10'-6"11'-0" 11'-6"12'-0"12'-6"13'-0"13'-6"14'-0"

111 1/41 1/41 1/21 1/21 1/22222 1/22 1/22 1/22 1/2333334444444

InletFlangeDia. B

OutletFlangeDia. C

5'-4"5'-6"5'-9"6'-0"6'-3"6'-6"6'-9"7'-3"7'-6"7'-9"8'-0"8'-3"8'-6"9'-3"9'-9"

10'-0"10'-6"10'-9"11'-0"11'-6"13'-0"13'-3"13'-6"13'-9"14'-0"14'-3"

6' -4"6' -9"7' -2"7' -8"8' -2"8' -7"9' -1"9' -10"

10' -3"10' -9"11' -3"11' -10" 12' -3"13' -3"13' -11" 14' -5"15' -2"15' -8"16' -1"16' -10" 18' -7" 19' -1"19' -7"20' -1"20' -6"21' -0"

7'-4"7'-6"7'-9"8'-0"8'-3"8'-6"8'-9"9'-3"9'-6" 9'-9"

10'-0"10'-3"10'-6"11'-3"11'-9"12'-0"12'-6"12'-9"13'-0"13'-6"15'-0"15'-3"15'-6"15'-9"16'-0"16'-3"

9'-4"9'-6"9'-9"

10'-0"10'-3"10'-6"10'-9"11'-3"11'-6"11'-9"12'-0"12'-3"12'-6"13'-3"13'-9"14'-0"14'-6"14'-9"15'-0"15'-6"17'-0"17'-3"17'-6"17'-9"18'-0"18'-3"

315320325330335340345350355360365370375380385390395

310031053110311531203125313031353140

8' -4"8' -9"9' -2"9' -8"

10' -2"10' -7"11' -1"11' -10"12' -3"12' -9"13' -3"13' -10"14' -3"15' -3"15'-11"16' -5"17' -2"17' -8"18' -1"18' -10"20' -7"21' -1"21' -7"22' -1"22' -6"23' -0"

10' -4"10' -9"11' -2"11' -8"12' -2"12' -7"13' -1"13' -10"14' -3"14' -9"15' -3"15' -10"16' -3"17' -3"17' -11"18' -5"19' -2"19' -8"20' -1"20' -10"22' -7"23' -1"23' -7"24' -1"24' -6"25' -0"

6"8"10"

1' -0"1' -2"1' -4"1' -6"1' -7"1' -9"2' -0"2' -2"2' -4"2' -6"2' -8"2' -10"3' -0"3' -2"3' -0"x3' -2" 3' -0"x3' -6" 3' -0"x3'-10"3' -0"x4' -2" 3' -0"x4' -6" 3' -0"x5' -0" 3' -0"x5' -4" 3' -0"x5'-10" 3' -0"x6' -4"

7"8"

11"1' -1"1' -3"1' -5"1' -7"1' -9"1'-11"2' -2"2' -4"2' -6"2' -8"2'-10"3' -0"3' -2"3' -4"3' -7"3' -9"3'-11"4' -1"4' -4"4' -6"4' -8"4'-10"5' -0"

Unit 16East Goscote Industrial EstateLeicesterLE7 3XAUnited Kingdom

Tel: +44 (0)116 260 8187 Fax: +44 (0)116 264 0543

Web: www.slyfilters.comEmail: Sales@slyfilters.com

Cleans and ReclaimsThe Sly Venturi

Scrubber serves industry inseveral ways. It removespollutants present inprocess gas streams. Thisincludes removinghazardous and nuisancedusts, fumes and mistsfrom stack gases. Cleaningprocess gas streams toremove oils, dusts andother particulate, thisscrubber offers an opportu-nity to recycle these gasesas fuels or process rawmaterials.

Venturi ScrubberHighlights Collects fine particles &

mists Adjustable throat

permits fine-tuning tomaximize efficiency

High efficiencies for sub-micron particulate

Water requirements aretypically 7.5 GPM per1000 CFM

Capacities from 1000 to100,000 CFM

Collect UltrafineParticles and Mists

The Venturi Scrubberuses the differentialbetween high velocitygases and free-flowingwater to create dropletswhich entrap contami-nants, hold them insuspension and deliverthem as a highly concen-trated slurry.

Unsurpassed forSeparating andRecovering LiquidMists and UltrafineParticulate

Simple in design, yethighly efficient, the SlyVenturi Scrubber incorporates featurescalculated to maximizecollection efficiency whileminimizing operating andmaintenance costs. Theyrange from a non-plugging, trouble-freemethod of introducingscrubbing liquid and asimple, easily-adjustedthroat for optimizing efficiency, to a floodedelbow arrangement thatcollects agglomeratedparticulate whileproviding an abrasion-resistant barrier to deterscrubber wear.

Venturi Scrubbers

100%

90%

80%

70%

60%

50%0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Expe

cted

Effi

cien

cy

(See

Gra

ph a

t Rig

ht)

30" w

g P

12" w

g P

20" w

g P

Micron

100%

99%

98%

97%

96%

95%

93%

30" P

12"

P20

" P

1.0 1.5 2.0 3.0 4.0 5.0 6.0 7.0 8.0 10.0

Expe

cted

Effi

cien

cy

Particle Size-Micron

1998 Sly Inc.WS300 398Printed in U.S.A.

OverallHeight

C3

OverallWidth

D

Sep. Cone

F

VenturiDepth

J

Standard Equipment Manually adjustable

throat Adjustable cyclonic

spin damper Flooded elbow Wetted approach inlet Removable liquid

distributors Access doors (bolted) Carbon steel/Stainless

steel construction

Optional Equipmentand Features Auto adjustable throat Corrosion resistant

alloy construction Quick opening doors Complete package

systems

Venturi Scrubbers

Sly Venturi ScrubberEfficiencies

Sly Venturi ScrubberEfficiencies

1

2

3

4

5

6

7

8

9

10

11

Size

2,600/3,600

3,600/4,700

4,700/6,300

6,300/8,500

8,500/11,500

11,500/15,000

15,000/20,000

20,000/27,000

27,000/36,000

36,000/48,000

48,000/60,000

NominalCapacitySat. CFM

Inlet &Outlet

A

13x13

15x15

17x17

20x20

23x23

26x26

30x30

35x35

40x40

46x46

52x52

3'-8"

4'-1"

4'-8"

5'-3"

5'-11"

6'-7"

7'-5"

8'-4"

9'-4"

10'-6"

11'-10"

Sep.Dia.

BSep.C1

6'-5 11/16"

6'-8 11/16"

7'-2 15/16"

7'-8 9/16"

8'-9 1/4"

9'-6 1/2"

11'-3 1/4"

11'-10 1/2"

14'-6 1/2"

15'-4"

17'-6"

Vent C2

7'-2 3/16"

7'-6 11/16"

8'-2 15/16"

8'-10 9/16"

10'-1 3/4"

11'-1"

13'-0 3/4"

14'-1 1/4"

16'-10 1/2"

18'-0 1/4"

20'-7 "

VenturiWidth

E

3"

4"

4"

4"

6"

6"

6"

8"

8"

10"

10"

2"

2"

2"

2"

3"

3"

4"

4"

4"

6"

6"

1'-5"

1'-5"

1'-9"

1'-9"

2'-4"

2'-4"

3'-1"

3'-1"

4'-4 1/2"

4'-4 1/2"

5'-10"

WaterPipe

H

DrainPipe

G

1'-3 1/2"

1'-5"

1'-7"

1'-9"

1'-11 1/2"

2'-1 1/2"

2'-4 1/2"

2'-9 3/4"

2'-11"

3'-3 1/4"

3'-8"

J

D

A

ACCESSDOOR

HHA

B

A

FG

E

C1C2C3

Venturi Scrubber Capacities& Dimensions

2'-4"

2'-6"

2'-11"

3'-2"

3'-7"

3'-10 3/4"

4'-8 1/2"

5'-1"

6'-1"

6'-6"

7'-5"

6'-7 1/2"

7'-2 1/2"

7'-11 3/4"

8'-10 1/2"

9'-10 1/2"

10'-11 3/4"

12'-5"

13'-7 1/2"

15'-7 3/4"

17'-2 3/8"

19'-3 3/8"

6'-6"

7'-2"

8'-2"

9'-1"

10'-4"

12'-1"

14'-1"

16'-5"

19'-0"

22'-1"

25'-7"

Unit 16East Goscote Industrial EstateLeicesterLE7 3XAUnited Kingdom

Tel: +44 (0)116 260 8187 Fax: +44 (0)116 264 0543

Web: www.slyfilters.comEmail: Sales@slyfilters.com