NK – Butterfly Valve

Features

  • Double action, maintenance-free and self-adjusting top and bottom stem sealing - wide variety of discs / body combinations possible
  • Durable due to optimum material combination PTFE lining and PFA disc
  • Maximum reliability due to triple sealing of the stem
  • Minimized operating costs

Specifications

  • Design - ISO/DIN
  • Nominal Pressure = 10 bar
  • Disc Lining = PFA
  • Body Lining = PTFE
  • Body Lining Option = Modified PTFE
  • Housing Material = EN-JS 1049 / ASTM A395
  • Face-to-Face = DIN EN 558-1 and ISO 5752 series 1, API 609 Table 1, MSS SP-67 Table 3
  • Flanges to ISO 7005-2, type B or flanges drilled to ASME  B16.5 class 150, raised face
  • Temperature Range = -40 °C to +200 °C (-40 °F to 400 °F)
  • Certifications = EU Pressure Equipment Directive 2014/68/EU, German Clean Air Act (TA-Luft), DIN EN ISO 15848-1, SIL
NK – Butterfly Valve

Options

Modell Title Nominal Size Description
NKLP Remote Actuated 2" - 40" , DN50 - DN1000 Centric valve for shut-off and control functions as lug-style butterfly valve, prepared for actuator, one-piece disc/stem unit PFA-lined, maintenance-free, self-adjusting stem seal
NKL Manually operated Gear with handwheel 2" - 40" , DN50 - DN1000 Centric valve for shut-off and control functions as lug-style butterfly valve, gear with handwheel, one-piece disc/stem unit PFA-lined, maintenance-free, self-adjusting stem seal
NKSP Remote Actuated 2" - 40" , DN50 - DN1000 Centric valve for installation between pipe flange (wafer-style butterfly valve), prepared for actuator, one-piece disc/stem unit PFA-lined, maintenance-free, self-adjusting packing stem seal
NKS Manually operated Gear with handwheel 2" - 40" , DN50 - DN1000 Centric valve for installation between pipe flange (wafer-style butterfly valve), lever assembly, one-piece disc/stem unit PFA-lined, maintenance-free, self-adjusting packing stem seal

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