Retractable Ventilation Control Blinds

Retractable blinds are a simple and robust Ventilation control for areas which require intermittent vehicle access. The blinds seal against a formed bulkhead under pressure and roll up and down by operating a manual winch. We supply VCB’s (Ventilation Control Blinds) in a kit with the winch and required accessories.

We can custom manufacture (VCB’s) rated to suit pressures up to 1.5kPa and to suit any tunnel profile.