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Neles On-off Valves

Ball valve_ for ASME classes (series D )

Ball valve_ for ASME classes (series D )
Ball valve_ for ASME classes (series D )
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Neles D series ball valves are designed to meet the requirements of chemical, petro-chemical and refining industries with improved process safety and efficiency of plant. D series valves with famous trunnion mounted Stemball® design and proven technology in design, materials and coatings enhance process reliability in the most demanding on/off applications like ESD service and high cycle service. Valve has high MTBF figure and it has been certified up to SIL 3 safety applications. Unique Stemball® design combined with anti-cavitation and low noise Q-ball technology are making the D series valve most suitable with wide rangeability for demanding control applications like anti surge and blow down services. High noise reduction Q2-trim is available for gas applications.


  • D2C, D2D, D1F


  • Full or reduced port, Stemball construction

Size range

  • D1F DN 50 - 600 / 2" - 24"
  • D2 DN 100 - 900 / 4" - 36"

Pressure classes

  • PN 10 - 100 / ASME 150 - 600

Temperature range

  • -200 to +600 °C / -320 to +1110 °F

» Link to D-series ball valve technical bulletins 

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Ball Valves (series X)

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