Flap Valve

  • useful as a reflux safety system against overflow
  • circular sealing
  • for on- and off-seating pressure
  • dimensions:

    • circular type DN 200 up to DN 2000
    • rectangular type WxH 200x200 up to WxH 2000x2000

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  • welded frame body
  • fixed Profile seal on frame body (easily exchangeable)
  • flap with special ribs and double bearings
  • crafted according to DIN 19569-4, BSI BS 7775 and ANSI / AWWA C513-05, AWWA C561-04
Layout up to DN 1200 (cross section)
Layout for larger dimensions (cross section)

  • for bolting with wall seal
  • with flange

Material

Design 304 / 304L

  • body: M.-No.: 304 / 304L
  • flap: M.-No.: 304 / 304L
  • seal: M.-No.: NBR / EPDM
  • bolts, nuts: M.-No.: 304 / 304L
  • fixing material: M.-No.: 316Ti / 316L
  • Other materials on request

Design 316Ti / 316L

  • body: M.-No.: 316Ti / 316L
  • flap: M.-No.: 316Ti / 316L
  • seal: M.-No.: NBR / EPDM
  • bolts, nuts: M.-No.: 316Ti / 316L
  • fixing material: M.-No.: 316Ti / 316L

 Other materials like Super Duplex Steel on request

  • plain flap
  • hollow float flap
  • with weight-loaded lever