Floating valves

Sulzer's unique floating valves for higher efficiency

Floating valve trays are used in applications where higher turndown ratios are required. Due to their ability to control vapor flow, they provide a higher efficiency over a wider operating range than sieve trays. We can provide our proprietary BDH™ valve and conventional round valve trays.

BDH valve
Main benefits
  • Unique rectangular-shaped BDHTM valves 
  • Valves oriented parallel to liquid flow direction 
  • No liquid flow under valves 
  • Minimized weeping due to lateral vapor release 
  • Improved turndown ratio compared to round valves 
  • Improved efficiency/capacity profile compared to conventional round valve trays 
  • Wide legs and lack of valve rotation reduce damage and wear 
  • Design allows for top side valve replacement 
  • Available range of valve lifts and weight allow for optimal design
Main applications
  • Main fractionators of refineries
  • Gas concentration columns of refineries
  • Light end columns of petrochemical plants
  • LNG / NGL fractionation columns
  • Absorbers and regenerators of gas sweetening plants
Round valve
RV1 round valve
RV1 round valve

Round valve

  • Available for replacement or as per customer specification 
  • Two deck variations: RV1 with flat deck and RV4 with venturi hole for lower pressure drop
Other valves
Caged valve
Caged valve

Other valves

Other valves are available for replacement or upon request: BDP valve, snap-in valve, caged valve

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