Butterfly valves

With double-offset valve disc
Soft-seated in accordance with DIN EN 593
Face-to-face length GR 14 in accordance with DIN EN 558-1
DN 150 to DN 1400, PN 10 and PN 16

Description

  • DIN DVGW conformity mark: NV-6201 AT 2574
  • Flange dimensions in accordance with DIN EN 1092-2, PN 10/16
  • Shaft bearing made of St/Bz/PTFE compound
  • With worm drive flanges in accordance with DIN ISO 5211
  • Shaft bearing outside the medium

DN [mm]  FTF* length [mm]  DN [mm] FTF* length [mm]
   150                210              500                350
   200                230              600                390
   250                250              700                430
   300                270              800                470
   350                290              900                510
   400                310            1000                550
   450                330            1200                630
                                           1400                710

*FTF = face-to-face

Field of application

  • Water

Materials

  • Body: spheroidal graphite cast iron
  • Seal: rubber profile ring (EPDM in accordance with the KTW recommendations and W 270 material approval for drinking water) on an enamel coated or epoxy resin powder coated seat
  • Shafts/internal parts: stainless steel
  • Valve disc: spheroidal graphite cast iron
  • Connection elements: stainless steel

All materials used comply with the requirements of the German Federal Environmental Agency (UBA).

Surface protection

  • Option 1:
    Valve body internal and external: epoxy resin powder coating
    Valve disc: epoxy resin powder coating
    Colour: RAL 5015 (sky blue)
  • Option 2:
    Valve body internal: enamel coating
    Valve body external: epoxy resin powder coating
    Valve disc: epoxy resin powder coating
    Colour: RAL 5015 (sky blue)
  • Option 3:
    Valve body internal: enamel coating
    Valve body external: epoxy resin powder coating
    Valve disc: enamel coating
    Colour: RAL 5015 (sky blue)

Coating compliant with GSK regulations
Actuation options: Hand wheel, stem extension kit, electric drive, pneumatic drive

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