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Flowserve-NAF-Trunnion Mounted Control Ball Valves - Trunnball DL

Trunnion Mounted Ball Valves - Trunnball DL


Trunnball DL are full-port process ball valves well suited for the most challenging operating conditions. They are frequently used for isolation or on-off applications but equally suitable for control.


  • Power
  • Oil & Gas
  • Water
  • General Industry

industry sectors

  • Conventional Steam
  • Biomass and MSW
  • Downstream Processing
  • Waste Water
  • Pulp & Paper
  • Mining
  • Steel & Primary Metals
  • Corn Wet Milling & Ethanol
  • ANSI B16.34
  • EN 12516
Design Range

Size Range: DN150-900/6"-36"

Pressure Class Range: PN10-40/ANSI 150 to 300

Seating Material: Metal, Soft

Features & Benefits
  • Improved plant and personnel safety due to the Z-trim option’s excellent cavitation control and noise reduction
  • Reduced maintenance and safe operations enabled by spring-loaded stem seal packing
  • Broad application flexibility facilitated by an extensive size range
  • Optimum controllability through the use of a sturdy blowout-proof stem that provides high torque transmission with minimal mechanical backlash


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