Tray Brochure Web - AMACS Process Tower Internals

AMACS tower trays

AMACS Process Tower InternalsAMACS Process Tower Internals is a worldwidesupplier of phase contacting and separationequipment, components and packaged systems.This equipment is used in a full range of processand pollution control applications. AMACS o smesh, vane and candle type mist eliminators thatctively remove droplets down to less than amicron in size. AMACS also supplies a variety ofrandom, structured and grid style packing, packingsupports and column internal hardware. Forliquid/liquid separations, AMACS manufacturesTrays and hardware are all part of AMACScommitment to providing customers with afull range of tower components and internals.All tray product designs have been provenproducts can also be manufactured to customAMACS separation specialists are on hand toassist customers in the design, sizing andselection of components and hardware.and cylind rical coalescers.2

AMACS Process Tower Internalssieve orperforated traysperforated plate which allows thepassage of vapor through the liquid.T hey are the most economical trayoption when low turndown isrequired. They have betteranti-fouling characteristics andlower pressure drop than valveor bubble cap trays. Perforationsare typically 1/2” diameter, butAMACS can provide designs withsmaller hole size.valve traysAMACS valve trays have betterturndown and slightly highercy than sieve trays. AMACSo s erent valve selectionsincluding d valves, oatingvalves and combination valves.Valve trays cost more than sievetrays, but are more economicalthan bubble cap trays.4

tower traysAMACS valve typesone piece valveThis is the most commonly used valve. This design featuresintegral legs for tray decks up to 1/4” thickness. Anti-stick dimplesare standard. Other options include heavy/light valve combination,h designs and non-rotating tabs in the tray deck.bubble cap traysBubble cap trays are best suited forapplications with low liquid owsand/or high turndown ratios. Interms of capacity, however, theyare slightly lower than valve orsieve trays. They are also the mostexpensive tray option.slottedbubble cap3 piece valveThis valve consists of a light weight or e plate, a valve, anda restraining cage. This design is recommended for higherturndowns.cross bar withwelded studswaged riserextruded traydeck openingxed valveThis valve is integral with the tray deck.This is the preferredoption for fouling conditions. However, it provides lowerturone piece rectangular valveventuri type openings to provide lower pressure drop.5

AMACS Process Tower Internalsdual ow traysdo not have downcomers. Theterm dual ow comes from thecounter current ow 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 capacityand lower pressu re drop thancomparably spaced fractionationtrays. Ho wever, their primary drawbackis their narrow operating range.Most often, they are t whenused in smaller tower diameters.Dual ow trays are also sensitive tolevelness and may be subject togross liquid and vapor ow partitioningthrough the deck if not level.traysBecause of their open design, etrays are used in applicationsrequiring high capacity, foulingresistance and low pressure drop.Vapor-liquid contacting takesplace when the vapor passesthrough a curtain of liquid fallingbetween trays, or through rivuletsperforations. Tray decks may belevel or slightly inclined andtypically occupy 40-60% of thetower cross-sectional area. “Diskand donut” trays have circularof this deign.Btransfer applications includingheavy oil r g and petrochemicaloiltransfer services with high solids orpetroleum coke content.high strength traysFor applications with potentiallydamaging uplift surges, AMACScan equip trays with special heavydutyfeatures. These include specialfasteners, increased tray thicknessor additional support beams.Dcriteria, design adjustments can bemade to take into account parameterssuch as corrosion, temperature,vibration and pressure surges.Contact your AMACS specialist fordesign assistance.donut traydisk tray6

tower traysadditional traydesign optionsFor special customer requi rementsand/or performance , AMACSnumerous tray performanceenhancingfeatures. Some of theSplash B For low liquid rateservice s, Splash B serve tomaximize the liquid retention timeon the trays. They can be used inplace of, or in conjunction with,AMACS include:Cartridge Trays– Suitable for smallupsealing options are available.Anti -Jump D owncomer B Toprevent liquids owing across thetray from jumping over the downcomeronto the opposing ow path.Anti- Jump D owncomer B arestandard for multi-pass trays withPicket- Fence Weirs– These areused to decrease the ive weirand using this option will hel pand prevent blowing.are located adjacent and parallel tothe outlet weir. They clear the traydeck and outlet by 1/2” to 1” forcingthethe outlet weir.Swept- Back Weirs– To reduce thective liquid height on the trayby lowering the volume of liquidper unit length owing over theoutlet weir. This option should beconsidered for high liquid ow rates.Swept-Back Weirs are used on sidedowncomers. They can also be usedto balance weir loads between sideand o -center downcomers inmulti-pass tray designs.Sloped D owncomers with RecessedInlet Sumps– Suitable for heavyliquid loads that could othe rwisecause downcomercartridge tray bundleCall our24 hour number1-800-231-0077AMACS stocks an extensivevariety of tray hardwa re.7