Fractionating Column
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This page explains how Trays is classified within Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
Internal components within a fractionating column that provide vapor-liquid contact surfaces for mass transfer during distillation.
Technical details and manufacturing context for Trays
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Diameter | 600–6000 mm | Matches column inner diameterISO 6600 |
| Tray Spacing | 300–600 mm | Affects height and efficiency |
| Number of Passes | 1–4 | Liquid flow arrangement |
| Tray Thickness | 2–6 mm | Structural strength |
| Slot Width (Valve Trays) | 2–5 mm | For valve trays only |
| Hole Diameter (Sieve Trays) | 3–12 mm | For sieve trays only |
| Open Area Ratio | 5–15 % | Affects pressure drop and capacity |
| Weir Height | 25–100 mm | Controls liquid holdup |
| Downcomer Clearance | 25–50 mm | Prevents vapor bypass |
| Material Grade | 304/316L | Corrosion resistanceASTM A240 |
| Design Temperature | -20–400 °C | Material limits |
| Design Pressure | 0.1–6.4 MPa | Full vacuum to high pressure |
| Surface Flatness | ±1.5 mm/m | Ensures seal integrity |
| Weight per Tray | 50–500 kg | Handling and support |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Vacuum to 20 bar (typical), up to 50 bar for specialized designs |
| flow rate: | Vapor velocity: 0.1-3.0 m/s (flooding limit dependent on design) |
| temperature: | -50°C to 400°C (dependent on tray material) |
| slurry concentration: | Not applicable for standard trays; specialized designs handle up to 15% solids |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
Manufacturer profiles associated with Trays.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
Common types include sieve trays, which have perforated plates, and valve trays, which have movable caps. Sieve trays are simple and cost-effective, while valve trays offer a wider operating range.
Tray spacing affects column height and efficiency. Typical spacing ranges from 300 to 600 mm. The selection depends on process requirements, fouling tendency, and maintenance access. Consult the manufacturer for specific recommendations.
Trays are commonly made of stainless steel, carbon steel, or special alloys. Material grade such as 304/316L per ASTM A240 is often specified for corrosion resistance. The choice depends on the process fluid and operating conditions.
The open area ratio, typically 5-15%, affects pressure drop and capacity. A higher ratio reduces pressure drop but may lower efficiency. It must be optimized based on the specific separation duty.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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