TRIODIS 300 Butterfly valve
Butterfly valve


Triple-offset butterfly valve, metal-seated (fire-safe), without gland packing, maintenance-free, with lever or manual gearbox, pneumatic, electric or hydraulic actuator. Body made of steel or stainless steel, full-lug body (T4), flanged body (T7) with flat or raised faces, body with butt weld ends (BWSE). Body types T4 and T7 are suitable for dead-end service. Connections to EN, ASME or JIS. Connections to ASME: Schedule 40S and STD to NPS for valves with butt weld ends (other connections on request). Fugitive emissions performance tested and certified to EN ISO 15848-1. Certified to German TA Luft Technical Guidelines on Air Quality Control. Fire-safe design tested and certified to EN ISO 10497 (BS 6755 - API 6FA). ATEX-compliant version in accordance with Directive 2014/34/EU. In compliance with NACE MR0175 / ISO 15156 and MR 0103.
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Main Applications

  • Mining
  • Chemical industry
  • Petrochemical industry
  • Natural gas liquefaction
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Technical Data

  • Nominal pressureCL 300, PN 40
  • Max. nominal sizeDN 1200
  • Max. allowed fluid temperature260 °C


  • Perfect tightness
  • Perfect bi-directional shut-off: zero leakage i.a.w. API 598
  • TRIODIS 300 meets the fugitive emissions requirements of the relevant standards (TA Luft VDI 2440 and ISO 15848-1) and the Fire Safety requirements of BS 6755-2 and API 6FA.

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TitleFormatSizeLast change
icon download-pdfproduct brochure (0518.026_EN)pdf4.0710/6/2020
TitleFormatSizeLast change
icon download-pdfType series booklet TRIODIS 300 (8613.1783_EN)pdf7.341/8/2020

Technical Data

  • FunctionShut off/control flow
  • Connection typeFlange, Butt weld ends
  • Design concept DriveWith electric actuator, With handwheel, Hydraulic, Lever, With pneumatic actuator, Without
  • Casing material8106, 8258, 8338
  • Nominal pressureCL 300, PN 40
  • Max. nominal sizeDN 1200
  • Min. nominal sizeDN 80
  • Max. allowed fluid temperature260 °C
  • Min. allowed fluid temperature-196 °C
  • Valve body typeFull-lug type, raised faces, Flanged body, raised faces, Butt weld end

Sectional Drawings