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Knife gate valve SD7 - AT200

Lug type knife gate valve

Knife gate valve SD7 - AT200

Technical data

Lug type knife gate valve for installation between flanges according to EN 1092-1 / PN 10. DN 200–DN 400 also available in PN 16.

Two-piece body, bidirectional tight shutoff, metal-guided gate locked when closed, self-adjusting COMPACT cross seal to atmosphere, no gland packing required – maintenance-free, self-cleaning flush-out corners with cutting edge in the lower body area.

  • Sizes: DN 50 to DN 1800
  • Pressure ratings (depending on nominal size): up to PN 16
  • Flange: DIN EN 1092-1
  • Face-to-face dimension: according to EN 558-1 line 20/16 (DIN 3202 K1/K3)
  • Temperature range: -50°C to +400°C
  • Coating: EKB, both inside and outside
  • Colour: RAL 5010
  • Certifications: CE-Marking, FDA approval / EU 1935/2004, ATEX (zone 0/20), SIL

Applications and Industries

  • Biogas plants
  • Sewage plants
  • Waste water treatment plant
  • Pump stations
  • Organical fermentation plants
  • Coal-fired power plant
  • Paper industry
  • Ship construction
  • Storm water holding tank
  • Recycling of waste
  • Wast incineration plants
  • Chemical industry
  • Coal-fired power plant
  • Power plant industry
  • Petrochemistry
  • Cement industry
  • Sludge treatment
  • Water treatment
  • Breweries
  • Food industry

Materials

Body

Grey cast iron (GG25/EN GJL-250), Ductile iron (GGG40/EN GJS-400-15), Cast steel GS C25, Stainless steel 1.4408

Gate

Stainless steel 1.4301, 1.4571, 1.4462 etc.

Seal

NBR, EPDM, EPDM white, MVQ, FPM, FFPM, PU, FEP, PTFE, Ceramic fibre/graphite

Scraper (in the sealing or extra groove)

Brass, FRP, PTFE, etc.

* If you have any other material requirements, please contact us!

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