Series D

Metso’s Neles® series D trunnion mounted ball valves incorporate Metso’s several decade experience of metal-to-metal seat technology. Equipped with Metso B1 series actuator and VG9000 intelligent safety solenoid the valve assembly delivers high availability in demanding safety valve applications. For control applications valves can be equipped with top of the line Metso Q-trim® ball valve noise attenuation trim options.

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  • Robust, heavy duty trunnion bearings
  • Unique Stemball® construction, no backlash on stem to ball connection, anti-blowout stem
  • 2-piece split body
  • Application based seat selection options, metal-to-metal and soft seats
  • Metso Q-trim® technology for control applications, anti-cavitation and noise attenuation
  • Latest Metso Q2-trim option available for gas applications
  • Low emissions according to ISO 15848, from cryogenic to high temperatures
  • Fire safe certified according to API 607
  • SIL3 certified
  • High Cv, including noise attenuations trims, which are designs self-flushing
  • Easy to maintain construction


  • High, long lasting tightness
  • Trouble free operation even in most demanding applications like abrasive, solids containing fluids
  • Increased gas noise attenuation with Metso Q2-trim as option
  • Low emissions according to ISO 15848, from cryogenic to high temperatures


  • ESD / ESV service (SIL 3)
  • De-pressurizing and blow down service
  • Low noise and anti-cavitation
  • Cryogenic service
  • High temperature service
  • High cycle and switching service
  • Molecular sieves
  • Solids handling
  • Chemical and petrochemical plants
  • Oil and gas production
  • Steam
  • Natural gas, LNG, LPG
  • Power plant


  • Construction:                   Flanged, trunnion mounted, full & reduced bore ball valve
  • Size range:                        DN 50 – 900 / NPS 2″ – 36″
  • Face to face:                     ASME B 16.10
  • Pressure ratings :            EN PN 10-100, ASME 150-600
  • Temperature range:       -200 °C … +600 °C / -330 °F … +1110 °F