Distillation Column Tray

High Performance Mass Transfer Equipment

Engineered Distillation Column Trays for Demanding Process Separation

Ambani Metals manufactures a complete portfolio of high-efficiency distillation column trays engineered for critical vapor-liquid separation across global hydrocarbon refining, petrochemical plants, specialty chemicals, pharmaceutical synthesis, and industrial desalination facilities.

Manufactured using CNC-controlled precision punching, laser cutting, and hydraulic forming, each column tray assembly is fabricated to strict engineering tolerances and tailored to hydraulic loading specifications. Whether handling high-volume crude fractionation, debottlenecking vacuum towers, or addressing severe polymerizing or fouling streams, our custom column trays deliver predictable hydraulic capacity, wide operating turndown, and extended operational cycles.

Distillation Column Tray Types Manufactured

Custom-fabricated in segmented panels designed for rapid passage and assembly through vessel manways (typically 18" to 24" ID nozzles).

Sieve trays for distillation columns

Sieve Trays

Perforated contact plates with no moving components. Provides the lowest pressure drop, high separation capacity, and excellent fouling tolerance for steady vapor-liquid processes.

Low Pressure Drop Cost-Effective Clean Service
Bubble cap trays and caps

Bubble Cap Trays

Cylindrical or slotted caps secured over risers. Maintains positive liquid seals with zero weeping even at near-zero vapor rates, ideal for high turndown and reactive distillation columns.

Maximum Turndown Positive Liquid Seal Low Liquid Rates
Fixed valve trays

Fixed Valve Trays

Directional or round valves pressed directly out of the tray deck. Delivers superior anti-fouling performance with non-sticking vapor orifices for corrosive or dirty duties.

Non-Fouling No Moving Parts Rugged Deck
Floating valve trays

Floating Valve Trays

Dynamic disk or caged valves that self-adjust according to changing vapor velocities. Provides broad hydraulic flexibility and high efficiency across variable production loads.

4:1 - 5:1 Turndown High Efficiency Flexible Operations
Modular Construction & Internals

Risers, Downcomers & Distillation Column Hardware

Separation efficiency depends directly on peripheral tray mechanics and sealing accuracy. Ambani Metals manufactures a complete package of installation-ready tray hardware, ensuring reliable fit-up and field replacement without hot work.

Downcomer Systems

Straight, sloped, or envelope downcomers with recessed inlet sumps designed to prevent hydraulic choking and vapor entrainment.

Tray Clamps & Fasteners

Specialized stainless steel tray clamps, carriage bolts, washers, and expansion bolting for quick manway assembly.

Weir Configurations

Standard flat weirs, picket-fence weirs for low flow dispersion, and swept-back weirs to prevent liquid backup at heavy reflux rates.

Anti-Jump & Splash Baffles

Center-downcomer directional baffles preventing cross-stream liquid splashing in multi-pass high-velocity columns.

Assembled Distillation Trays and Columns

Engineering Parameters & Custom Fabrication Capabilities

Every column tray is fabricated to exact customer process data sheets, hydraulic ratings, and mechanical design codes.

Tray Geometry & Flow Design

  • Diameter Range: 300 mm to 6,000+ mm (Modular segmented panels for manhole passage)
  • Pass Arrangements: 1-Pass, 2-Pass, 3-Pass, and 4-Pass flow configurations depending on tower diameter and liquid load
  • Deck Spacing: Typically 300 mm to 600 mm based on allowable entrainment and vapor velocity
  • Cartridge Trays: Packaged flanged tray sets for small-diameter pilot and specialty towers (150 mm to 400 mm)

Certified Materials & Metallurgy

  • Stainless Steels: SS 304, 304L, 316, 316L, 316Ti, 321, 310S, 410, 904L
  • Duplex Stainless: 2205 Duplex, 2507 Super Duplex
  • Nickel Alloys: Monel 400, Inconel 600/625, Incoloy 825, Hastelloy C-276, Hastelloy B-2
  • Reactive Metals: Titanium Gr. 1, Gr. 2, Gr. 7, Zirconium, Tantalum lined
  • Traceability: Full EN 10204 3.1 Material Test Reports (MTR) with heat number tracking

Quality Assurance & Standards

  • Welding & Assembly: ASME Section IX certified welders and procedures (WPS/PQR)
  • Inspection: 100% pre-assembly shop dimensional verification and tolerance checks
  • Testing: Dye Penetrant Inspection (DPI/PT), Positive Material Identification (PMI) by XRF analyzer
  • Packaging: Seaworthy, fumigated wooden crating with vapor-barrier lining and labeled hardware sets
Tray Type Relative Capacity Turndown Ratio Relative Pressure Drop Fouling Resistance Relative Capital Cost
Sieve Tray High Moderate (~2:1) Lowest Moderate Lowest (Most Economical)
Fixed Valve Tray High Good (~3:1) Low - Moderate High (Non-sticking) Low - Medium
Floating Valve Tray High Excellent (~4:1 to 5:1) Moderate Moderate Medium
Bubble Cap Tray Moderate Highest (>8:1) Highest Low Highest
Proven Worldwide Logistics

Global Supply & Export Verification

Ambani Metals serves Tier-1 EPC contractors, refinery maintenance divisions, and plant operators worldwide with export-compliant documentation and crating.

Middle East & Gulf (GCC)

Saudi Arabia (Aramco compliant standards), UAE, Qatar, Oman, Kuwait, and Bahrain for refinery crude towers, gas sweetening, and offshore fractionation revamps.

Americas & Europe

United States, Canada, Germany, Netherlands, United Kingdom, and Italy for petrochemical debottlenecking, biofuel purification, and specialty chemical recovery systems.

Asia-Pacific & Africa

Singapore, Australia, Malaysia, Indonesia, South Africa, Nigeria, and Egypt with complete international shipping documentation, third-party inspection (TUV, DNV, SGS), and priority delivery.

Need Distillation Trays Built to Your Column Specs?

Connect directly with our process engineering and fabrication specialists. We analyze your process data sheets, calculate hydraulic loading, and supply high-precision tray solutions for your turnaround or greenfield projects.

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Frequently Asked Questions: Column Trays & Hardware

Technical guidance regarding tray selection, design parameters, and procurement standards.

A distillation column tray is a horizontal internal contact plate engineered to facilitate counter-current mass transfer between upwardly rising vapor and downwardly descending reflux liquid. Components separate across successive stages based on differences in vapor pressure and relative volatility. The tray deck contains contact mechanisms (perforations, valve units, or bubble caps) that disperse vapor thoroughly into the liquid layer to maximize interfacial surface area.

Sieve trays are the simplest and lowest-cost design, utilizing bare perforations; they perform exceptionally well under steady operational loads but weep at reduced vapor throughput. Valve trays utilize dynamic or stationary orifices that throttle vapor flow, increasing turndown to 4:1 or 5:1 with high efficiency. Bubble cap trays incorporate capped chimneys that maintain a permanent liquid pool on the deck, providing total weep-free operation and the widest operational flexibility, albeit at higher capital cost and pressure drop.

Fixed valve trays and conventional sieve trays with larger hole configurations are the preferred choice for fouling, slurry-bearing, or polymerizing services. Fixed valves have no moving or floating caps that can bind, seize, or accumulate solid crusts, maintaining steady operation throughout extended run periods.

Yes. Although structured packing and valve trays have replaced them in many standard separations, bubble cap trays remain mandatory for applications requiring positive liquid sealing, minimal weeping at near-zero rates, high liquid holdup times (such as reactive or absorption columns), and processes with substantial fluctuations in feed rate.

Yes. We regularly supply replacement trays and revamp internals engineered to fit existing tower wall rings and downcomer bolting bars. All tray decks are fabricated in segmental panels designed to pass through existing vessel manholes (typically 18" to 24" ID) and reassemble rapidly without on-site hot work.

Have a process data sheet or drawing ready?

Talk to our engineering team: +91-9930498858 · [email protected]

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