Truncated downcomer SUPERFRAC® trays
Several patented truncated downcomer designs are available and are customized to the specific application.

Truncated downcomer SUPERFRAC® tray
  • Diameters from 3 ft [900 mm]
  • Fouling resistant with large
    diameter fixed valves
  • Downcomer maximizes
    active area in comparison
    to conventional designs
  • Equal or better efficiency in
    tray-for-tray revamps


Truncated downcomer SUPERFRAC® tray
with PROVALVE® active areas
 
Truncated downcomer SUPERFRAC® tray with PROVALVE® active areas


Truncated downcomer SUPERFRAC® trays use active area enhancements and advanced downcomer technologies and may include inlet area enhancements. The Enhancements page provides additional descriptions.
 
Several patented truncated downcomer designs are available and are customized to the specific application. The tray design takes the vapor and liquid rates into consideration as well as special requirements, such as fouling service.
 
Capacity gains for these trays can be substantial, particularly in cases where the existing conventional trays had large inlet areas below the downcomers. In these cases, the recovered area under the downcomer can create a drastic increase in capacity. At higher capacities, testing has shown that these trays still maintain high efficiencies. Under most conditions, the efficiency of these trays is higher than conventional trays.
 
Lower cost options are considered during the design process while recognizing the required capacity and efficiency. More complicated designs are not utilized if simpler ones will suffice.
 
Construction details
 
  • Truncated-style downcomers that are either straight or sloped
  • Designs for specific application requirements
  • Bolted design

 

Design options