l

The nrore uou knozo about their excellent performance'the more you'Il sPecifY them!

SPECTRA Cooling Tower Drift Eliminators

4iMrlr

afnffi nquoSPECTRA' cooting Tower Drift Eliminators

oIEE

gs

5.0

4.O

3.0

2.0

1,0

5.0Velocity, meter/sec

Fi8urc L SPECTRA Pressure Drop Cutue

design and a number of currentproductsl€ly on rhis simpte geomciry.While highly cfficient, orher bladeprodLrcts remajn t imi ied by theirinabi l i ty to rapidly chanSe rheclirection of small mass droplets. ThcSPECTRA design (Figure 2) hasovercomc this gencric limitation byextending the third pass impactsurface by over 35% and by adding atrailint edge airfoil_ Tlns airfoit crcatesa stagnai lon region immediatetyupsturam which rhe smallest dropletsenter and are then eliminated byimpacting the airfoit surface outsideoI the influence of rhe mah airftow.

SPECTRA Drift Etiminators continuet o o u t p e r f o r m o t h e r d e s i g n s(Figure 3) and are widety acceptedtoday as the product-of-choice by

SPECTRAa Drit't Eliminatorc arc theresult al ertensio? rcseatch antl testins

sotg state-of-the art technolosv ta salota univercal caoling tower problem i thetnast cost cJfecfiw wlty n|)ailtlblc tada!.

SPECTRA Drift Eliminators offer thebest performance avai lable at acompetihve price.

I tcmoving l iquid dropleis fromcooting towcr exhaust air whi Ic usingas littlc fan crcrgy as possiblc is whateff ic icnt dr i f i rcmovat is al t abort .(FiSLtre l ) . One look ai the btadedesign of SPECTRA Drift gliminatorswill tell you why thcy arc superior invir tual ly el imjnaring cool jn8 towcr:dr i f t in an energy eff ic ient way.

Al l dr i f t el inr inator designs rcly onrapid changcs jn vclocityard djrcciionof aiL-droplet mixturcs to rcmovc ddftby impaction on climjnator passagesurfaces. This principle applies to bothcel lular and blade rype designs.Sinusoidal passage forms arc widetyacknowledgcd as the nrost eflectivc

Figure 2. SPECTM\ stonp doubte- wablade desien

bdustry including hundreds of utilityand petrochemical instal lat ions.

M M A c t u a ' s S P E C T R A D r i f tEl iminators provide outstandjngpertormance in both crossflow andcounierflow applications. Since firsthtroduced in 1979, a number ofoperating SPECTRAinsralarions havebeen independenity tested by variousaSencies using both sensitive paperand isokinetic sampling techniques.

Measured drift rates rypically variedfrom 0.003 to 0.0005 percent of rhec r r c u l a t i n g w a t e r r a t e . T h i so r t s i a n d i n g p e r f o r m a n c e i sathibutable to SPECTRA,S unique andpatented blade design. White somecellular desiSns may olfer simitar ddfrrate results, they lack the strengrh and

rigjdity of thc SPECI It-A. bla d e design

And SPECTRA Providcs a uscful air

velocity opcrating range !hat is lvell

beyond the limits of other producls

D o uble-Wall C onstructi o n

SPECTI{A's doubLe-wal I constrllction,couplcd witlr the exceptional physical

prcperiics of PVC, assLrres structural

intcgrity and dimensional stability fol'

maxinrum scrr ice l i fc.

Exceptionel Strength,Wide Spans\ l iv1 Aqun's uniqrc SPECI' l tA bladc

J e s i S n p t o v i d c s s u P c r i o r b c a m- l r f n g t h a l l o w i r l g s p a n s o f L r p t o1 n r r i f o s $ , i t h o u i i n t c r m o c l i a t e- r f p . r t s . T h i s c x c e P i i o n a l s P a n

;. iprbi l i ty is a bi8 advantagc for df i f t

. : inr inat()r replacements in natural

. : . r ' t cool ing towcrs ' fhc ru88cd

j. . i :n oi SI 'ECTRA Dri f i [ l iminato'sn:f.rns ihcy can be Prcssure $'ashcci,L i n L , . e s s a r y / w i t h o u t d a m a g e

Pressure Wash AzuaYBionass Fouling

\ \ ' i th ihe ncr{ ' \ 'a lcr t reatment

r e s t r i c t i o n s i n c o o l l n g t o w c r s ,

biological for i l ing is becoming an

i n c r e a s i n g l y j m P o r t a n i c o n c e r n

Ccl lular designs are much more

susceptiblc to fouling and pluggillg

and once they Plug therc is no v\'ay to

prcssure washthcm because they are

fragile. SPECTRA's rugted, double-

wal l construct ion al lows Prcssurelvashing without damage to climinateany cff ic iency loss d1le to biomassbui ld-np.

Glue-Free AssemblY,Easy Instsllatiotl

SPECTRAbladcs and side Platcs are

casily asscnlbled nrtopanels at the iolls i tc. No thcrmal shock-scr ls i t ivebolrciing agcnts afe Lrscd. Asscnlbly isquick and easy witho!t specjal lalror,

t o o l s o r a n c i l l a r y f a s t e n c r sfa cls arc instal led h any oPening

$, i th suPport mcmbefs on t f l ro

opposing sidos and can sPan 3 mctrcs

without intcf lncdiatc s!rPPorts. Most

in placc woocl or colcrctc coolrng

k)wcr st fuct l rral molnbers maY be

uscd fof SI 'ECLRA Dri f t El iminak)rpancl support u, i ihout addit ional

Iram1n8.

Minimal BloTo-by, C&try'oaet Reentrqinmetlt

':li;iJ:ir,lirT"''"'ii;:llilllii:ir'"

'lADtt:, L Il!thurnnl d,tl rh'"ti<rt t)t\)tit!t.l

instal lcd, no voids or cl iscof i inLr j t icscxist in thc cl iminator scci ion This

Incans tha! with SPIIC'f l tA Lr low-by

an.l carry'ovef bcconle virtlrally noIr

Supeior M eial

Side platcs are .lcsigneci with sclf- SI'ECTRA l'VC is spccialy for.lnulatecl

tocking flangcs that provido quick, for its superior physical pfoPertics. Ii

posltivo panel end seals. SI'ECTRA s includcs Titaniun Dioxidc as a UV

sidc platc also has a bui l t - in clrain inhibi ior to provide excePtional

channcl to c:train collectcd dflft ljqdd resistance to Lrltraviolct radiatic)n in

iononc tical areas outsidc the mah outdoor rvcather crpos res. SI'ECTRAgas siream. This is part icular ly PVC stands up t{el ] to temPcrature

important because competitive ccllular variations, air col]tamination and

desigrs lack ihis drain capabilit-v Once biological attack. SPICI RA Dtift

SPECTRA.D ft Eliminator panels arc Eliminat.rrs are made oI PVC that

l::::,:,iiti::i;::;::"tri:;::,i#y"::::l;L;l:i::':#i;:,i-?#:l':it;]':""!,)::'::ff!;::;::!:""#i*::i::i':,f,'ii,!:,"'

OooooooooolfEaraA A sPhc/Fl a 1

30 DAY IMMERSIONS AT

Room Tenperllure 60oC

Tensil. Wtighl Originrl T€nsile Wiighlslrength Change Tehsjle SIr€nath Chenge(fq/sq.cn) t."h) (kg/sq.cn) (ks/sq.cn) \E")

meets or exceeds the ASTM D-1784ccll no. 13354 specifications for Type1 rigid po\,.vinylchlodde compounds.Type 1 PVC compounds have theh i g h e s t s t r e n g t h a n d c h e m i c a lresistance properties of all thc rigidPVC compounds. (Table 1). In theserespects PVC is consid€red superiorto other plasiics. PVC retains highimpact and tensile slrength and resistsheat distortion over a wide ran8c oftemperature condit ions. Th(]seproperties, coupled with thc highlystablcdoublc-wal lblade consiruct ionand low working stresses, assurcstablc blade dimensions and structuralintegrity of ihc SPECTRAdcsign evenu n d e r s c v e r e t h e r m a l s h o c kcondiiions.

Long Operating LifeSPECTRA PVC is highly nnpervioust o c h c m i c a l a n d b i o l o g i c a Idegradation. Strong acids, alkalies andsait solutions have minimal effects onboih i ts strength and durabj l i ty(Table 2). The exccpiional resistanceof SPECTRA's PVC compound tochemical and biological attack providea notably longer operat ing l i fecompared to wood or other plastics.

Louer Firc RiskAs the result of extensive testing,SPECTRA Dnft Etimlnators have beenassigned a Class 1 firc i:tardant ratinS.Turucl tcsts conducied by Southwest

CHEMICALREAGENT

Hyd(,.hloric Acid (30Eo)Hydrolluoric Acid (70Eo)

Sodiun Htdn)xlde (50%l

5625,181665 1 3520521521

527

5205 4 t

+0.23+0 20

Ar 23

+023+0.11+0.24+4.21

+0.21

5.18569

5065205205205.11520520

514

562371

+.t.22+0 62+ l ? 6+5 24+061+0.36+0.71

.0.0:

TABLti 2. Chr"tilrl R(sirta& t oJ SP IICTRA PvC.

Rescarch Institute, in accordarce withASI 'M- E-U4-70 tcst procedLrrcs,ver i f icd thc non-conbust ibi l i iy ofSPECTIiA Drifl Elinlinaiors and showa flame sprcad rating of25 or lcss anda f l rc l contr iblr t lon factor of 0. Thismeans feduccd f i re r isk ancl lowcr

E-conomical Shipment axdbtotflge

The uniquc design ofSPICTRA.DriftEl iminators al lows shipment andstorage ir1a cornpact,lotr, volumc nestfor . In comparison to high volumecel lular typc designs, SI 'ECTRAprovidcs significantly lowcr shippin&handling and in-plant storage costs.

LightweightThe SPECTRA Drift Elimnlator weighsonly 6.59 kg/cu.meier. This is 1/2 to

I /3l jghtcr tha. most \()od cl inr inatordcsigns and rodLrc. 's the loads on

Product UnifotmityDimensional accuracy ancl unjfol.nlityarc assurecl on evcry pancl s ince al linterlocking clcmcnts are labricatcclat tho faciory to closc k) lorances.

Ask abou t ou r ope ra t i nginstal lat ions and see how we'vesolved those tough dritt problemsfor others with SPECTRA DriftEl iminators.

Let us quote yourdrift eliminatorrequirements today.

t* j*"lt*.Jr":,*ml:g*,:.\T"?;,,n,"""..."",,,..,Phane:A124-371a3413717791371257 Fax:0124-371A35 E maiI mmaoua @ nda vsn .rer.inRegd. Oflice : E-154, East ol Kailash,. New DeLh 110065Phone : 011-6218376/6219246/6413353 Fa : 011'64703A916472203 e-ma maouade @det3.vsnl.nel.in