Sulzer Plus tray technology

Superior performance through downcomer and tray deck technology

Our high performance trays combine special tray decks for superior vapor capacity with advanced chordal downcomer technology for increased liquid capacity.

Graphic of a 4-pass VGPlus™ tray equipped with ModArc downcomers, MVG™ and push valves
Main benefits

Benefits compared against conventional trays

  • Higher capacity: up to 30%
  • Lower pressure drop: up to 20%
  • Equal or higher efficiency
  • Elimination of hydraulic gradient
  • Uniform liquid flow & vapor distribution
Main applications
  • Main fractionators of refineries
  • Gas concentration columns of refineries
  • Light ends columns of petrochemical plants
  • LNG / NGL fractionation columns
  • Absorbers & regenerators of gas sweetening plants

 

Sulzer “Plus” technology

VGPlus™ and UFMPlus™ Trays, are Sulzer’s high performance “Plus” Technology chordal downcomer trays. They offer industry proven and validated advanced tray technology for today’s market.

Sulzer “Plus” Technology make use of enhanced downcomers technology trays such as high sloped, Truncated, StepArc™ (stepped), ModArc™ and Prism downcomers, as well as enhanced tray decks equipped with high capacity MVG™,  MMVG™ fixed valves or UFM™ Float valves.

Graphic of three different high performance trays with different downcomers
UFMPlus™ trays
High Performance Tray UFMPlus™ with StepArc downcomer and push valve
1 pass UFMPlus™ with StepArc downcomer and push valve

UFMPlus™ trays

UFMPlus™ trays are Sulzer’s high performance chordal downcomer trays with UFM™ tray decks and enhanced downcomers. Among the chordal downcomer trays, UFMPlus trays offer highest capacity while maintaining high mass transfer efficiency. Being float valve trays, UFMPlus trays offer better turndown than fixed valve trays, i.e. up to 5:1. 

Key characteristics

  • High Capacity UFM valves
  • High Performance downcomers – truncated, StepArc or ModArc
  • Redirecting and froth promoting devices such as push valves and baffle bars 

Advantages to conventional trays

  • Higher capacity: up to 30%
  • Equal or higher mass transfer efficiency
  • Minimize hydraulic gradient
  • More uniform liquid flow
  • More uniform vapor distribution
  • Lower pressure drop
VGPlus™ trays
Graphic of a truncated downcomer tray
1-pass VGPlus™ with baffle bars and Steparc™ (stepped-multi-chordal) downcomer

VGPlus™ trays

VGPlus™ trays are Sulzer’s high performance chordal downcomer trays with MVG™ or MMVG™ tray decks and enhanced downcomers. They offer industry-proven and Fractionator Research Inc (FRI) validated advanced tray technology for today’s market.

Key characteristics

  • High Capacity MVG or MMVG fixed valves
  • High Performance downcomers – truncated, StepArc or ModArc
  • Redirecting and froth promoting devices such as push valves and baffle bars

Advantages compared to conventional trays

  • Higher capacity: up to 30% 
  • Lower pressure drop: up to 20% 
  • Equal or higher mass transfer efficiency 
  • Minimize hydraulic gradient 
  • More uniform liquid flow 
  • More uniform vapor distribution 
  • More uniform L/V on tray deck 
  • Higher fouling resistance
How can we help you?

Talk or write to our experts to find your best solution.