RVK / RVKS Non-return damper

Product code: RVK / RVKS B x H

RVK is a non-return damper protecting exhaust air openings.

RVKS a non-return damper for installation into ductwork.


  • Prevents air backflow
  • Protects ventilations systems from rainwater
  • Easy to install
  • RVKS can be installed into horizontal or vertical duct system


RVK and RVKS are constructed of two parts: a frame and a removable louvre.

RVK is with powder coated finish (RAL 7000).

Standard sizes every 100 mm. Minimum size 200×200 mm and maximum 800×1200 mm. Larger louvres are manufactured in modules.

Width B 200-800 mm
Height H 200-1200 mm
Material Zn, H, ZM
Color code standard color RAL 7000 (light grey) other colors from RAL color card