AMACS tower traysAMACS Process Tower Internals is a worldwide supplierofphase contacting and separationequipment,components and packaged systems.Thisequipment is used in a full range of processandpollution control applications. AMACS o s mesh, vane and candle type mist eliminators that ctively remove droplets down to less than a micron in size.AMACS also supplies a variety of random, structured and grid style packing, pack-ing supports and column internal hardware. For liquid/liquidseparations, AMACS manufacturesand cylind rical coalescers. Trays and hardware are all part of AMACScommitment to providing customers with a full range of tower components and internals. All tray product designs have been proven productscan also be manufactured to customAMACSseparation specialists are on hand toassist customers in the design, sizing and selection of components and hardware.AMACS Process Tower Internals2materials of constructionAMACSs trays in a wide variety of materials including allsteels and most alloy materials. For availability of special alloys,please consult with your AMACSseparation specialist.tray type selectionWhenselectingbetween AMACS it is importantthatall performance considerationsare taken into account including:Pressure dropTurndownCapacityIn addition to the list of perform-ancefactors, you should also takeinto account fouling and othercharacteristicsc to theprocess. The key, of course, is to balance the various tray types andother tower components so that the processis optimized, safe andreliableover the long haul.3tower trayshex nutmanway lock clampsmanway lock studsmanway clampshex nutseal platehex nuttray (inlet panel)tray support ringhex nut frictional washertray (inlet panel)tray support ringbottom tray clamphex-head boltdowncomer bolting barmanway (active)tray (active)tray (active)outlet weirdowncomer trusshex-head boltstandard washerhex nutfrictional washerdowncomer paneldowncomer bolting barbottom tray clamphex-head boltstandard tray componentassemblyhex-head bolt manway lock clamp manway stud seal plate frictional washer bottom tray clampsieve or perforated traysperforated plate which allows thepassage of vapor through the liquid.They are the most economical trayoption when low turndown isrequired. They have better anti-foulingcharacteristics andlower pressure drop than valveoraretypically 1/2 diameter, butAMACScan provide designs withsmallerhole size.valve traysAMACS valve trays have better turndown and slightly highercy than sieve trays. AMACSo serent valve selectionsincluding d valves,oatingvalves and combination valves.Valve trays cost more than sievetrays, but are more economicalthanbubble cap trays.4AMACS Process Tower Internalsbubble cap trays. PerforationsAMACS valve typesbubblecap traysBubble cap trays are best suited forapplications with low liquidowsand/or high turndown ratios. Interms of capacity, however, they areslightly lower than valve orsieve trays. They are also the most expensive tray option.5tower trays3 piece valveone piece valvexed valveslotted bubble capcross bar withwelded stud swaged riserextruded traydeck openingone piece rectangular valveThisis the most commonly used valve. This design features integral legs for tray decks up to 1/4 thickness. Anti-stick dimplesare standard. Other options include heavy/light valve combina-tion,h designs and non-rotating tabs in the tray deck.Thisvalve consists of a light weight or e plate, a valve, anda restraining cage. This design is recommended for higher turndowns.This valve is integral with the tray deck.This is the preferredoption for fouling conditions. However, it provides lowertur venturi type openings to provide lower pressure drop.6dual ow traysdonot have downcomers. The term dualow comes from thecounter currentow of the vaporand liquid through the perforations.Typical perforation sizes rangebetween 1/2 and 1 in diameter.Dcontaining a moderate to highsolids content or polymerizablecompounds. High open area dualow trays have a higher capacity and lower pressure drop than comparably spaced fractionationtrays. However, their primary draw-back is their narrow operating range.Most often, they aret whenused in smaller tower diameters.Dualow trays are also sensitive tolevelnessand maybe subjecttogrossliquid and vaporow parti-tioning through the deck if not level. traysBecause of their open design,etrays are used in applicationsrequiring high capacity, foulingresistance and low pressure drop.Vapor- liquidcontacting takesplace when the vapor passesthrough a curtain of liquid fallingbetween trays, or through rivulets perforations. Tray decks may belevel or slightly inclined and typically occupy 40-60% of thetower cross-sectional area. Diskand donut trays have circular of this deign.Btransfer applications includingheavy oil r g and petrochemicaloiltransferserviceswith high solidsorpetroleum coke content.high strength traysFor applicationswith potentiallydamagingupliftsurges, AMACScan equip trays with special heavy-duty features. These include specialfasteners, increased tray thickness or additional support beams.Dcriteria, design adjustments can bemade to take into account parame-ters such as corrosion, temperature,vibration and pressure surges.Contact your AMACS specialist fordesign assistance.AMACS Process Tower Internalsdonut traydisk tray7additional traydesign optionsCartridge Trays Suitableforsmall upsealingoptions are available.Anti -JumpDowncomerB Toprevent liquids owing across thetray from jumpingover the down-comeronto the opposing ow path.Anti- JumpDowncomerBarestandard for multi-pass trays with Picket- Fence Weirs Theseare used to decrease theive weir and usingthisoptionwillhel pand prevent bl owing. SplashB For low liquidrateservices, SplashBserve to maximize the liquid retention timeon the trays. Theycan be used inplace of, or in conjunction with, are located adjacent and parallel to the outlet weir.They clear the tray deck and outlet by 1/2 to 1 forcingthe the outletweir.Swept- BackWeirs To reducethective liquid height on the trayby lowering the volume of liquidper unit lengthowing over theoutlet weir. This option should be considered for high liquidow rates.Swept-Back Weirs are used on sidedowncomers. They can also be usedto balance weir loads between side and o -center downcomers inmulti-passtray designs.Sloped Downcomerswith RecessedI nletSumps Suitableforheavy liquidloadsthatcouldotherwisecausedowncomertower traysFor specialcustomerrequi rementsand/orperformance , AMACS numerous tray performance-enhancing features. Some of the AMACS include:cartridge tray bundleAMACS stocks an extensive variety of tray hardware.Callour 24 hournumber1-800-231-007714211 Industry Street, Houston, TX Ph: 713-434-0934 Fax: 713-433-6201e-mail: amacs@amacs.com www.amacs.comMESH and VANE MIST ELIMINATORSfrom knitted mesh pads to vane mist eliminators.We also manufacture our patented Mist Fixinsertion mist eliminator for applications wherevessel access is prohibitive. INSERTIONMISTFIXMIST ELIMINATOR INLET DISTRIBUTORSmany designs available including diffuser plates and cyclonic type distributors.TRAYS for gas/liquid contacting in distillation, absorption, and stripping applications-valve,sieve, bubble cap & special designsRANDOM PACKINGSto facilitate mass transfer under a wide range of applications.STRUCTURED PACKINGAMACSprovides a variety of structured packing types.LIQUID REDISTRIBUTORSfor effective collection and redistribution of liquids. AMACS offers variable options tomeet a variety of performance requirements.GAS INJECTION PACKING SUPPORTsupports packing and provides effective gas distribution with low pressure drop.STRUCTURED GRID PACKING for severe fouling applicationsLIQUID/LIQUID COALESCERSwe manufacture a variety of mesh and plate internals as well as turnkey systems for liquids and oil/water separations.TURNKEY POLLUTION CONTROL PACKAGESfor asphalt, oleum, plasticizers, metal working,compressor stations, marine bilge and a widerange of specialty indoor air cleaning and outdoor removal of visible plumes. We also manufacture turnkey systems for separating a wide variety of gas, liquid and solid regimes.cometo AMACS Process Tower Internals.With a full range of separation Other AMACSProducts