WS Rectangular wall exhaust ventilator and anti-return damper

Description

Rectangular WS exhaust ventilators with self-closing louvres provide protection against reverse airflow in the case of exhaust flow failure. The WS-K duct version acts as a self-closing flap providing protection against reverse airflow.

Intended use

Used at the ends of low- and medium-pressure ventilation systems in the form of an air extractor with reverse airflow shut-off.

Design

• Standard:
  • movable aluminium louvres
  • galvanised steel frame/body
• Upon special request:
  • painted in RAL colour
  • stainless steel

If the dimension C ≥ 650 of the WS air ventilator, additional reinforcement is fitted to the cross-section.