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Flowserve-NAF-Floating Ball Valves - Duball DL

Full Port Ball Valves - Duball DL

BRAND: NAF

The Duball DL is a high-performance, metal-seated, full-bore ball valve, equally suitable for isolation, on-off and modulating control applications.

Product Highlights

Industries

  • General Industry
  • Chemicals
  • Water
  • Oil & Gas
  • Power

Industry Sectors

  • Pulp & Paper
  • Mining
  • Steel & Primary Metals
  • Basic (Organic & Inorganic)
  • Biofuels
  • Waste Water
  • Downstream Processing
  • Conventional Steam
  • Biomass and MSW

Standards

  • 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

Design Range

Size Range:

  • DN25 to 400
  • NPS 1 to 16

Pressure Class Range:

  • PN 10-40
  • Class 150 to 300

Seating Material: Metal Soft

Features and Benefits

  • 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

Industries

  • General Industry
  • Chemicals
  • Water
  • Oil & Gas
  • Power

Industry Sectors

  • Pulp & Paper
  • Mining
  • Steel & Primary Metals
  • Basic (Organic & Inorganic)
  • Biofuels
  • Waste Water
  • Downstream Processing
  • Conventional Steam
  • Biomass and MSW

Standards

  • 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

Design Range

Size Range:

  • DN25 to 400
  • NPS 1 to 16

Pressure Class Range:

  • PN 10-40
  • Class 150 to 300

Seating Material: Metal Soft

Features and Benefits

  • 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

Parts & Services

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