XOMOX® High Performance Butterfly ValvesType 800ISO

The XOMOX® 800ISO valves offer an ISO 5211 actuator interface with an extended neck to allow for pipe insulation, optionally a smooth uninterrupted retainer, and closed bottom for improved safety and leak prevention on sizes DN80-DN300/3″-12″.

Features And Benefits

  • Is the only double offset design butterfly valve on the market with uninterrupted sealing surfaces that provide double dead-end service under full differential pressure.
  • The ISO mounting flange allows levers, gear mechanisms, and actuators to be mounted directly via a standardized ISO interface.
  • The closed design of the head and neck allows the connecting piping and valve to be completely insulated while eliminating potential leak paths.
  • The integrated travel stop protects the seat from damage that can result from over-travel of the disc.
  • For applications involving flammable media, the dual component seat offers both superior sealing and fire tested security. It provides tightness according to leak rate A (EN12266-1) up to 300°C.

Technical Details


  • Actuator mounting as per DIN ISO 5211
  • Integrated travel-stop
  • Maintenance-free stem packing
  • Double eccentric disc mounting
  • PTFE seat ring (patented)
  • Screwless retainer (patented)
  • Flange gasket sealing face uninterrupted by retainer screws allows the use of all standard gasket designs
  • Closed bottom
  • Long valve neck


  • Standard: 1.0619, 1.4408; A216 Gr. WCB, A351 Gr. CF8M
  • Optional materials upon request


  • DN 80 – 600 / NPS 3“ – 24“


  • PN 10, 16, 25, 40; ASME Class 150


  • PTFE-Seat: 203 K bis 477 K (-70°C to +204°C)
  • PTFE-Seat reinforced: 203 K bis 505 K (-70°C to +232°C)


  • Lug design
  • Wafer design


  • Fire-Safe
  • Leak control
  • Primary stem seal
  • Oil-free/Grease-free (various designs as per customer request)
  • Oxygen application
  • Chlorine and phosgene applications
  • Control seat (A, B)


Industrial branches:

  • Chemical and petrochemical industry
  • Oil and gas
  • Air separation
  • Chlorine liquefaction
  • Power generation
  • Energy
  • Offshore platforms
  • Pulp & paper
  • Desalination
  • Steam
  • Corn processing
  • HVAC


  • Various chemicals
  • Hot gases
  • Chlorine gas
  • Methanol
  • Propane
  • Liquid nitrogen
  • Oxygen
  • Carbon monoxide & carbon dioxide
  • Sewage
  • Recausticizing
  • White water
  • River water
  • Cooked starch
  • Scrubber effluent
  • Fly and bottom ash
  • Gasoline
  • Tail gases
  • Off gases
  • Sour gas


  • TA Luft acc. to VDI 2440, ISO 15848
  • Fire-Safe acc. to API 607, 4th edition, and EN ISO 10497:2000
  • DGRL 2014/68/EU
  • ISO 5211
  • TSG certificate
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