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  • Ball valves
    • NAF Duball DL
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    • Navalball, stainless steel
    • Navalball, carbon steel
    • Navalsteam, carbon steel
  • Ball sector valves
    • NAF Setball
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  • Butterfly valves
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    • NAF ProCap
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    • NAF RC
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    • EP5 and P5
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    • Safety valve, stainless steel
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    • Safety valve in brass, PN 6
    • Safety valve in brass, PN16
    • Safety valve in brass, PN40
  • Check and gate valves
    • NAF Check
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    • Gate valve, stainless steel
  • Limit switch boxes
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    • Chemical pulping
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  • ProductsDiscover our products
    • Products
      • Ball valves
        • NAF Duball DL
        • NAF Duball DL Pocket Valve
        • NAF Duball DL Ceramic Valve
        • NAF Trunnball DL
        • NAF Triball
        • NAF Trimball
        • Navalball, stainless steel
        • Navalball, carbon steel
        • Navalsteam, carbon steel
      • Ball sector valves
        • NAF Setball
        • NAF Setball SF
        • NAF Setball for MC-pulp
      • Butterfly valves
        • NAF Torex
        • NAF Unex
      • Capping valves
        • NAF ProCap
      • Actuators
        • NAF Turnex
        • Hand lever
        • Gear
        • NAF RC
      • Valve positioners
        • EP5 and P5
        • NAF LinkIT
        • D30
      • Safety valves
        • Safety valve, stainless steel
        • Safety valve, carbon steel
        • Safety valve in brass, PN 6
        • Safety valve in brass, PN16
        • Safety valve in brass, PN40
      • Check and gate valves
        • NAF Check
        • NAF Check ANSI
        • Gate valve, stainless steel
      • Limit switch boxes
        • XCL/XML
        • PS/PM
        • WS/WM
      • Software
        • ValveSight
        • NAF eValuate

      Place the mouse pointer over a product in the list to see the product.

      Need other Flowserve products?
  • ApplicationsExtraordinary solutions
    • Chemical pulping
      • Fiberline
        • Cooking
          • Batch Digester
          • Continuous Digester
        • Washing and Screening
        • Oxygen Delignification & Bleaching
      • Recovery process
        • Evaporation
        • Recovery Boiler
        • White liquor preparation
  • About NAFExperience in motion
    • The company
    • Quality
    • Experience in motion
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  • Documents & ToolsInstructions & information
    • Documents
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      • Automated Drawing System
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  • ContactNAF world wide
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HomeCE WeldingISO 3834-2_welding valid to 2023-05-29_eng

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ISO 3834-2_welding valid to 2023-05-29_eng

ISO 3834-2_welding valid to 2023-05-29_eng

Published: 27 September, 2018

Archive

  • Flowserve NAF receives the 2019 Industry Leader Award by the U.S. National Safety Council (NSC) 3 October, 2019
  • Flowserve NAF’s products re-certified by exida for SIL 3. 27 August, 2018
  • Global performance, local presence- Read about our Brazilian Pulp Mill Successes 30 May, 2018
  • Test our interactive 3D model of NAF Setball SF! 30 May, 2018
  • Flowserve NAF launches new compact ball sector control valve NAF Setball SF 16 February, 2016
  • Flowserve to Supply Control and Automated On/Off Valves to Klabin’s New Giant Pulp Mill in Brazil 23 March, 2015

NAF Control valves

NAF is a leading supplier of advanced control units, actuators and valves for complete control and safe operation in the Pulp and Paper, Chemical and Petro Chemical, Oil and Gas, Power and Steelworks industries throughout the world.

All Flowserve products

Contact us

[email protected]
[email protected]
Gelbgjutaregatan 2,
581 87 Linköping, Sweden

Phone +46(0)13-31 61 00
Fax +46(0)13-13 60 54

Navigation

  • Products
    • Products
  • Applications
    • Chemical pulping
      • Fiberline
        • Cooking
          • Batch Digester
          • Continuous Digester
        • Washing and Screening
        • Oxygen Delignification & Bleaching
      • Recovery process
        • Evaporation
        • Recovery Boiler
        • White liquor preparation
  • About NAF
    • The company
    • Quality
    • Experience in motion
    • Articles
    • Flowserve.com
  • Documents & Tools
    • Documents
    • Online-tools
      • Automated Drawing System
      • Performance!NXT
  • Contact
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