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ARI ZETRIX

Triple offset butterfly valves are normally used in critical and challenging applications where we have combinations of high temperatures and pressures. Typical markets are oil & gas, petrochemical industry, chemical plants, hot water, district heating, steam and pulp & paper.

Contact us for more information about these variants.

Properties
  • Connections: fully lugged, double flanged or welded connections
  • DIN: DN80 - DN1200, PN10 - 40 / DN80 - DN600, PN63-100
  • ANSI: 3" - 48", Class 150-600
  • Temperature range from -60°C to  +427°C
  • Body: Carbon steel 1.0619+N / WCB, stainless steel 1.4408 and special alloys on request
  • Disc: Carbon steel 1.0619+N, stainless steel 1.4408 and special alloys on request
  • Stem: Stainless steel 1.4021+QT, stainless steel 1.4542
  • Metal-seated, Stellite 21
  • Lamellar seal rings 1.4462
  • Operation: Manually with gearbox, pneumatic, electrical or hydraulic actuators
Technical documentation
  • Design DIN EN 12516, ASME B16.34, API 609
  • Connection: DIN EN 1092, ASME 16.5, ASME 16.47
  • Face to face double flanged: DIN EN 558-1 series 13, ISO 5752, API 609 
  • Face to face lug: DIN EN 558-1 series 16, ISO 5752
  • Face to face welded connections: DIN EN 558-1 series 14, ISO 5752
  • With ISO5211 top flange
  • Leakage rates: DIN EN 12266-1 Rate A, API 598 and API 6D (Bi-directional)
  • NACE MR0175 & MR0103
  • Pressure-temperature acc to EN 192, ASME B16.34
  • TA-Luft / ISO 15848-1
  • Further approvals: ATEX, FireSafe (DIN EN10497 / API 607), SIL