Zero leakage with double block and bleed full metal sealing


  • Steam purging in seat area for continuous protection and cleaning, bearing protection as an option
  • Two piece shaft design for maximized capacity
  • Patented position indicator for highest process safety
  • Double block and bleed (DBB) sealing system for hydrocarbon and oxygen segregation
  • Compact and solid design
  • 100% fluid segregation
  • Block function with steam
  • High corrosion and abrasion resistance
  • Cobalt based alloy sealing surfaces and disc edge protection
  • Fire safe design
  • Gate valve face to face length


  • High operational reliability, best thermal expansion resistance  - works in all process conditions
  • Maximized process uptime, faster transition to decoking mode and fast operation
  • Compact and low weight construction – no extra piping support needed
  • Flexible plant design - suitable for all installation directions and high temperatures up +600 ºC
  • Zero leak construction prevents the back flow of the process gas to cracker furnace
  • Minimized OPEX - maintenance free up to 5 years
  • Optimized maintenance process for maximized process uptime
Size range DN 300 to 2500 / 12" to 100"
Pressure class PN 16 to PN 40 / ASME Class 150 to 300
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