Flap covers

Product description

For application as a backflow preventer on the discharge outlet of drainage systems. In case of rising water levels backflow is prevented due to self- actuated closing of the flap. Also applicable in flood protection.

Specifications

  • Nominal size: 100 mm to 2000 mm
  • For round and rectangular openings
  • for fixed flange connection, mounting with chemical anchor bolts and embedding

Corrosion resistance

  • Maximum corrosion resistance due to stainless steel material, all acid bath cleaned and passivated.

Design

  • The flap cover is construed for mounting with chemical anchor bolts or for fixed flange connection.

Versions

Available with 3 different types of flaps:

  • Flat flap cover for an external water level underneath the tubing channel bottom
  • Hollow flap cover for external water levels above the cover flap
  • Flat flap cover equipped with counter balance weight for low drainage pressure

On request also available with angled seat cover and shock absorption.

Areas of application

  • Drainage systems
  • Flood protection

Materials

  • Stainless steel 304 or 316Ti or galvanised steel
  • Sealing: EPDM, NBR
Flap covers

General information

We will be pleased to consult you
+49 (911) 46 254-0

Product ímages

Flap cover DN 1400 with shock absorption
Flap cover DN 1400 with shock absorption
Flap cover DN 1400 with shock absorption
Flap cover DN 1400 with shock absorption
Flap cover DN 1200 for mounting
Flap cover DN 1200 for mounting
Flap cover DN 1200 with counter balance weight
Flap cover DN 1200 with counter balance weight
Flap cover DN 600 for mounting
Flap cover DN 600 for mounting
Flap cover in use
Flap cover in use
Flap cover rectangular
Flap cover rectangular