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Designed for additional capacity and/or efficiency complete with directional valves
High-performance trays maximize column capacity and efficiency beyond conventional sieve or valve trays. The SEMV (Scalloped Edge Mini Valve) tray is a patented mini valve design where the scalloped edge splits vapor into multiple smaller streams, enhancing vapor-liquid contact while reducing entrainment and pressure drop. Available as fixed or float configurations. Paired with directional push valves, SEMV trays create plug flow across the deck, eliminating dead zones. Truncated downcomers increase active deck area for additional vapor capacity. Specified for columns near flood limits, revamp projects requiring increased throughput, and applications including washing, natural gas drying, and fatty acid fractionation. TrayTec supplies and installs SEMV high-performance trays to your column specification.
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The scalloped edge geometry splits each vapor stream into multiple smaller jets, increasing vapor-liquid contact area and reducing entrainment and pressure drop compared to conventional round valve or sieve hole geometries. This allows the column to operate at higher vapor loads without flooding. Contact TrayTec with your column operating data to confirm the capacity improvement achievable for your specific service.
Directional push valves are specified when liquid flow across the tray deck creates dead zones, gradient problems, or maldistribution that reduces tray efficiency. The push valve geometry directs vapor flow to create a plug flow pattern for the liquid, sweeping the full tray deck uniformly and improving efficiency. Contact TrayTec to confirm whether push valves are appropriate for your column's liquid load and tray layout.
Yes. High-performance trays are a common retrofit choice for columns that need increased throughput or improved separation efficiency without vessel modification. The retrofit design must confirm that the existing column shell diameter, tray spacing, and downcomer geometry are compatible with the SEMV configuration. Contact TrayTec with your existing column drawings to assess retrofit feasibility and confirm the capacity gain available.
