NAF – Duball DL Ball ValveEnquire Now

NAF 8211 Duball DL Ball ValveNAF 8211 Duball DL Ball ValveNAF 8211 Duball DL Ball Valve

BRAND: NAFCATEGORY: Ball Valves, Control Valves,

The NAF Duball DL is a high performance, metal or soft seated full bore ball valve equally suitable for isolation, on/off and modulating control applications. The excellent characteristics of NAF Duball DL are particularly beneficial under the most challenging operating conditions in the process industry, where difficult media and demanding pressure conditions make severe demands on the design, materials and performance. The unique spring loaded stem seal packing guarantees a long maintenance-free and safe operation. NAF Duball DL has direct actuator mounting capabilities of the NAF-Turnex actuator which provides a high performance, vibration resistant, compact valve package. The valve is available with a wide range of options with regards to materials, seat configuration, low noise and anti-cavitation trims and other special versions. API 607 and ISO 10497 fire safe compliant versions available. Contact one of our technical specialists for a quote today or download the brochure to learn more!

Specifications

SeriesDuball DL
Design

Split Body Floating Ball

Features
  • Modular design
  • Spring loaded live loaded stem seal
  • Fire safe bi-directional tightness
  • Sturdy blow-out proof stem
  • Metal seats
Size
Range

25mm to 400mm / 1” to 16”

Pressure
Rating

PN10 – 40 / ANSI 150 – 300

Temperatures-30°C to 250°C
End
Connections
Flanged
Body
Materials

Carbon steel / Stainless Steel / Alloy steels / ASTM A351 CG8M (317) / ASTM A351 CG3M (317L) 

Seat
Materials
R-PTFE / SS + Alloy 6 overlay / Duplex + Alloy 6 / Solid Alloy 6
Ball
Materials
SS / SS + Hard Chrome / SS + Alloy 6 / Duplex + Alloy 6 / Solid Alloy 6
Options &
Accessories
  • Manual, pneumatic or electric actuators
  • Z-trim reduces cavitation and noise
  • Scraper, sealed, spring loaded or locked seats
  • Degreased for oxygen service
  • ATEX 94/9/EC certification
Applications

Isolation, on/off and control for chemical processing, synthetic fuels, hydrocarbons, oil & gas, refining and steam throughout the processing industry

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