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Retractable Ventilation Control Blinds

Standard sizes

Size
4m X 4m
4.5m X 4.5m
5m X 5m
5.2m X 5.5m

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.