Metallic Sealing Triple Eccentric Butterfly Valve


ZETRIX® – the ARI process valve for the most demanding applications.

The disc of the ZETRIX® valve can completely shut off the flow of liquid and gaseous media by means of a 90° open/closed swivel movement. This butterfly valve is versatile, has a long service life and is reliably sealed even under the toughest operating conditions.

Your Advantages

  • Available soon in a cryogenic version for temperature ranges from –196 °C
  • Long service life thanks to maintenance-free and stellited sealing seat as a standard version
  • Friction-free and wear-free pivoting of the valve disc due to optimised contact and closing angles
  • "Intelligent" lamellar sealing ring (self-centering due to floating bearing) ensures a uniform radial closing force with minimal effort
  • Hardened bearing bushes for the one-piece safety shaft
ZETRIX®, series 016, double flanged
ZETRIX®, series 018, fully lugged
ZETRIX®, series 019, butt weld ends
ZETRIX®, series 019, cryogenic version up to –196 °C

Product Features ZETRIX®

Technical Data

StandardsDIN EN; ANSI
Series016; 018; 019
Nominal pressuresPN 6 – PN 100 (DIN EN)
Class 150 – Class 600 (ANSI)
Nominal diametersDN 80 – DN 1400 (DIN EN) 
3" – 56" (ANSI)
Temperature range–60 °C – +550 °C
Body materials1.0619+N; 1.4408; 1.7357 (DIN EN)
SA216WCB; SA351CF8M; SA217WC6 (ANSI)
Sealing types Graphite packing; optional: packing according to EN ISO 15848-1/TA-Luft
Disc materials1.0619+N; 1.4408; 1.7357 (DIN EN)
SA216WCB; SA351CF8M; SA217WC6 (ANSI)
Connection typesDouble flange; threaded flange; weld ends
Body typesOne-piece housing with full bore
ActuatorsWorm gear with handwheel operation; pneumatic, electric or hydraulic actuator
ApprovalsATEX; Firesafe; SIL; ISO 15848-1 / TA-Luft

Areas of Use

Markets (excerpt)
  • Industry (e.g. paper, steel mills)
  • HVAC
  • Shipbuilding
  • Oil & Gas (e.g. oil and gas processing, refineries, petrochemicals)
  • Chemicals
  • Tank farm
  • Pharmaceuticals & Biotechnology
  • Food & Beverages (e.g. sugar processing)
  • Energy (e.g. power plants, district heating)
Applications (excerpt)
  • Autoclave evaporation
  • Energy recovery
  • LPG loading and unloading
  • Building air conditioning
  • Heating
  • Industrial cooling
  • Steam generation
  • Heat transfer
  • Molecular sieves
  • Water electrolysis
  • Air separation
  • Flue gas desulfurisation
  • Turbine protection
  • Uranium extraction
Flow Media (excerpt)
  • Water
  • Steam
  • (District heating) Hot water
  • Vapours
  • Heat transfer oils
  • Hydrogen
  • Ammonia
  • (Exhaust) Gases
  • Petrochemicals

Triple Offset Butterfly Valve ZETRIX® for Emergency Shut Down


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