Metal Sieve Tray Product Description

The Metal Sieve Tray is the most fundamental and widely adopted column tray in the chemical, petrochemical, and refining industries. Its design is elegantly simple: a flat metal deck perforated with a pattern of precisely sized small holes. Vapor rises through these holes and bubbles through the liquid flowing across the tray, creating a froth layer where mass transfer occurs. Liquid flows from tray to tray via downcomers. With no moving parts, no caps, and no valves, the Sieve Tray offers the lowest fabrication cost and easiest installation of any tray type, while delivering tray efficiencies comparable to or better than more complex designs—provided it operates within its design range. It is the standard choice for clean, non-fouling services with relatively steady operating conditions.

Product Highlights

• Simplest Design & Lowest Cost: A flat deck with drilled holes eliminates the complexity and cost of caps, valves, or other attachments—offering the most economical solution for column internals.
• High Mass Transfer Efficiency: When operating at design rates, sieve trays deliver tray efficiencies of 70–85%, comparable to or exceeding valve trays in many clean service applications.
• Easy to Fabricate & Install: The straightforward design reduces manufacturing lead time and simplifies field installation, lowering both initial investment and turnaround costs.
• Low Maintenance: With zero moving parts and a completely flat deck, there is nothing to stick, break, or wear, ensuring reliable long-term performance with minimal maintenance.
• Lightweight & High Throughput Potential: The absence of heavy caps or valves reduces tray weight, and the full deck area can be utilized for vapor passage, enabling high vapor capacity.
• Proven in Countless Installations: Sieve trays are the reference standard for distillation and absorption towers worldwide, with decades of operational data and well-established design correlations.