Floating Ball Valves - Duball DL
Product Brand
NAF
Type
Ball Valves
SubType
Floating Ball Valves
About this product

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

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Low Cavitation
Z-trim

Resist Corrosion
EN 1.4408

Stem Sealing
Zebra-CL
  • Long, maintenance-free, safe operation in automated on-off and control service assured by spring-loaded stem seal packing
  • Increased plant and personnel safety via blowout-proof stem and high-torque
    transmission with minimum mechanical backlash
  • Broad application versatility enabled by extensive size range and options, including fire-safe tested versions
  • High performance enabled by direct actuator mounting capabilities of the Turnex actuator
  • Excellent control, noise reduction and cavitation enabled by unique Z-trim option
  • Easy installation and replacement as a result of the off-center joint face of the valve body
  • ASME B16.34
  • API 6D
  • PED 97/23/EC
  • Fire-safe: API 607, ISO 10497
  • Oxygen Service: ASTM G124, BAM, EIGA
  • FE (Fugitive emission): ISO 15848, TA LUFT VDI/VDE 2440
  • ISO 9001
  • Anti-static: DIN EN ISO 17292
  • Shell : SPP 77/300 - CG Spec (Slag sluice systems)
  • Brazil: NBR 15847
  • Cryogenic: BS 6364, SPE 77/306

Size Range:

  • DN25 to 400
  • NPS 1 to 16

Pressure Class Range:

  • PN 10-40
  • Class 150 to 300

Seating Material: Metal Soft

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