Flap cover
made of stainless steel or steel


Flap cover
made of stainless steel or steel

For use at the outlet of a drainage system as a backflow preventer and in flood protection. When the water level rises, backflow is prevented by automatic closing of the cover. Different cover variants allow use for a wide range of requirements. With circular or rectangular opening.

Flap cover – made of stainless steel or steel

Details

Opening size and pressure level

  • DN 100 - 2000 mm
  • Nominal size 150 × 150 mm up to 3000 × 3000 mm
  • Selectable pressure level on the front: 2-10 mWS

Flap

  • Straight flap lid (standard) reinforced by sheet metal ribs according to static requirements
  • All welded stainless steel parts with perfect corrosion protection from our own pickling plant
  • Steel parts hot-dip galvanized or coated
  • Replaceable wearing parts and seal (EPDM/NBR)

Werkstoffe

  • 1.4301 (304) 
  • 1.4404 (316L) 
  • 1.4410 (507) 
  • 1.4462 (318LN) 
  • 1.4539 (904L) 
  • 1.4571 (316Ti)
  • Steel A36-hot-dip galvanized or coated

Tightness class

  • Leakage rate to DIN 19569, Part 4, Table 1: Pressure at front:0.05 to 0.1 l · s-1 · m-1 (tightness class 3)
  • Pressure-tight from 1.5 times DN

Mounting options

  • Dowelling into the structure
  • Casting in concrete
  • Mounted on a pipe flange with hole pattern PN10
    Optional: Other hole pattern possible

Scope of supply

  • Flap cover complete with all required fastening elements (dowels and sealing material)

Variants

  • Flat cover at the outside water level below the pipe base
  • Flat cover with counterweight at low drainage pressure
  • Flap cover with counterweight
  • Sloping cover
  • With shock absorption

Individual sizes are available on request.
Please contact our customer service via the contact form.

ABWASSERENERGIEHOCHWASSER

YOUR ADVANTAGES

VERSATILE
Soft-sealing backflow flap as a backflow preventer, for drainage and flood protection
 
INDIVIDUAL

Each flap cover is available with different cover designs

FACTORY CERTIFICATE

Flap cover including factory certificate according to DIN EN 10204, 2.1, with indication of the leakage rate according to DIN 19569, part 4

PERFECT CORROSION PROTECTION

All welded stainless steel parts from our own pickling plant

We will be pleased to consult you

Contact

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